Patent Classification. Patent classification is a system for organizing all U.S. patent documents and other technical documents into specific technology groupings based on common subject matter. On January 1, 2013, the USPTO moved from using the United States Patent Classification (USPC) system to the Cooperative Patent Classification …Toll-Free. 800-786-9199. Local. 571-272-1000. TTY/TDD. 800-877-8339. Email. [email protected]. For general information, mailing addresses, Internet addresses, USPTO.gov accounts, how to use the online fee payment management system and contact information for other USPTO services.Nov 30, 2023 · Search our trademark database. Learn about the upcoming summary page feature, which allows you to see key information about an application or registration from your search results, without going to the Trademark Status and Document Retrieval (TSDR) system. Watch previous webinars to learn how to use the new system, and download webinar handouts ... Apr 25, 2011 · Online patent tools. Locate online patent services and information. Patent Center. Single interface replacement for EFS-Web, Private PAIR and Public PAIR. Electronic Business Center; Check application status. Check patent application status with Patent Center. Fees and payment. Pay maintenance fees and learn more about filing fees and other ... Application number US329608A Inventor Pons Charles Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) ... References Cited in the file of this patent UNITED STATES PATENTS 2,546,465 Martini Mar. 27, 1951 2,613,882 …Patents. You should search on the: Internet (including Google Patents and social media). IP search databases (Australian and international). As part of the examination process, we'll also perform extensive searches. If we find a product or invention that's too similar to yours, we'll let you know.Seven-step U.S. patent search strategy . U.S. patent search assistance at a Patent and Trademark Resource Center ( PTRC) ... From the results page c lick on either the patent number or t he patent title to see the full -text of the patent (patents issued prior to 1970 will not have a full- text version, only a limited text entry). Click on the redElectronic Filing System (Patent Center) Apply for a patent using Patent Center: Patent Center - for filing, follow-on processing, managing applications, checking the status on and viewing associated documents for patent applications and more. Learn More About Patent Center - Information and Resources. Setup your Customer Number.The user may enter 1-7 numeric characters to search trademark related assignment records recorded against the specific trademark number. A registration number may not exceed 7 digits in length. All assignments recorded. All assignments recorded against the specific number will be displayed on the Abstract of Title page.Search by assignee name and location. Published on: December 19, 2023 17:34. This microtutorial for Patent Public Search will show you how to locate U.S. patents and published patent applications assigned to particular companies and other entities. You can search by assignee name, city, and state. Other ways to view this video. Watch it …USPTO (United States Patent and Trademark Office) - Search Page. US patents search via Google patents. Google Patents. Limit searches to design patents (1843 +) by selecting 'Design (D)' in the 'Patent type/status' field. PDF files of US patents. pat2pdf.org - Search by US design patent numbers and display full text of all US design patentsHow to conduct a preliminary U.S. patent search: A step-by-step strategy – provides a web-based video tutorial (36 minutes). The Multi-Step Patent Search Strategy – outlines a suggested procedure for patent searches. ... You can search by application number, patent number, PCT number, publication number or international design registration ...The Seven Step Strategy. Patent searching tools. Register today. To learn more information about patent searching, visit the search for patents page on the USPTO website. For questions about this event, contact the Texas Regional Office at [email protected] or 469-295-9000. This event is accessible to individuals with … The U.S. Patent and Trademark Office (USPTO) is the agency responsible for granting U.S. patents and registering trademarks. ... Search. All topics and services ... patents granted between 1790 and 1975 are not keyword searchable, they are only retrievable by the patent number, the Cooperative Patent Classification (CPC) …3 days ago · Searching for U.S. granted patents and patent applications is conducted on a single interface, Patent Public Search. There is a library of micro tutorial videos on searching this database. All newly issued patents are published weekly in the Official Gazette for Patents which is retrospectively accessible online beginning with the issue dated ... Starting October 1, 1992, design patent applications are assigned separate application serial numbers which are associated with newly established application series codes, beginning with "29". Starting June 8, 1995, the PTO began to accept provisional patent applications in accordance with implemented legislation arising from the GATT …Jul 31, 2018 · In order to search by Customer Number, you must have access to the Patent Electronic System, Patent Center, using a Registered USPTO.gov account. Go to Getting Started - New Users for instructions to obtain a: Applications by Customer Number - You may search for all applications related to a specific customer number. References: U.S. and foreign patent documents and other publications cited as related prior art by the inventor and patent examiner. 57: Abstract: A brief, non-technical description of the invention. 58: Field of search: Classifications consulted by the patent examiner during the prior art search. 60: Number and date of provisional application: 63Jul 2, 2002 · Official Gazette for Patents. The Official Gazette for Patents is published each Tuesday in electronic form only, and contains bibliographic (front page) text, a representative claim, and a drawing (if applicable) of each patent issued that week. Please note that the Official Gazette Notices are also included in each issue and provide important ... TAF REPORT. ISSUE DATES AND PATENT NUMBERS SINCE 1836: BY YEAR. -- 1836 TO 2001. BY ISSUE DATE -- 1963 - 12/1994. (With addendum for issue dates from 1995 - 2001) April 2002. U.S. PATENT AND TRADEMARK OFFICE INFORMATION PRODUCTS DIVISION / TAF BRANCH PK3 - SUITE 441, WASHINGTON, DC 20231 TEL (703) 306 …Publication Publication Date Title. US6470214B1 2002-10-22 Method and device for implementing the radio frequency hearing effect. US7162042B2 2007-01-09 Modulator processing for a parametric speaker system. US6169813B1 2001-01-02 Frequency transpositional hearing aid with single sideband modulation.About us Toggle submenu. About us. Find out more about our work, values ... Decisions sorted by number (Art. 112 EPC) Pending petitions for review (Art. 112a EPC) ... Patent knowledge: access our patent databases and search tools. New to patents? Home; Searching for patents United States Patent and Trademark Office . Patents . Patent Center; Search patents; Patent applications search; Check private filing status; Check public filing status; Contains links to the various databases of the U.S. Patent and Trademark Office. Provides full-text of patents from 1976 to the present and full-page images for patents starting in 1790. Patent images can only be searched by issue date, patent number, and classification. PatFT, AppFT, Pub EAST, and Pub WEST will be retired in …From the homepage, you can begin your search in a few ways: Enter a patent publication or application number, such as US9014905B1, 9014905, or US 14/166,502; Enter freeform text, such as autonomous vehicle camera. You can also enter "exact phrases" and metadata restricts assignee:"Google Inc", inventor:page, and before:2001.; Note: …USPTO (United States Patent and Trademark Office) - Search Page. US patents search via Google patents. Google Patents. Limit searches to design patents (1843 +) by selecting 'Design (D)' in the 'Patent type/status' field. PDF files of US patents. pat2pdf.org - Search by US design patent numbers and display full text of all US design patentsAs part of the Patent Knowledge Nuggets series, this video shows users how to search by patent numbers in Espacenet using, both, Advanced search as well as S... Search for a patent application. Search by application number, patent number, PCT number, publication number or international design registration number. Search for a patent application. Search by application number, patent number, PCT number, publication number or international design registration number. Application #. Patent Center ... PatentCenter UIutility patents (i.e., "patents for invention"), design patents, plant patents, reissue patents, statutory invention registrations, defensive publications granted by the U.S. Patent and Trademark Office during the period 01/01/1977 - 12/31/2015. These profiled documents hereafter will be referred to as "patents".Please Enter Filing office. Select Logical Operator. Select Search Field. Please Enter International Patent Classification (IPC) Select Logical Operator. Select Search Field. Please Enter P.C.T. Application Number. Select Logical Operator. Select Search Field.patents granted between 1790 and 1975 are not keyword searchable, they are only retrievable by the patent number, the Cooperative Patent Classification (CPC) …Justia Patents Producing Aural Effects By Stimulation US Patent for Method and device for implementing the radio frequency hearing effect Patent (Patent # 6,470,214) ... Patent number: 6470214 Type: Grant Filed: Dec 13, 1996 Date of Patent: Oct 22, 2002 Assignee ...For a patent that has the publication number 2013/9304893, its publication is the year 2013. The seven-digit number after the forward slash is unique and doesn't reflect the patent or application number. The purpose of all of these different numbers is to keep the many patents in their different stages well-organized. The U.S. Patent Office ...Learn how to use Patent Public Search (PPUBS) Advanced in this recorded demonstration with emphasis on design patent searching.PPUBS is a publicly available ...Supplementary Protection Certificate Search. Search for an SPC using either the SPC number or patent number. by patent number. Find SPC using patent number. ... Tell us about a problem with this service 8:30am to 5:00pm (UK time) Monday to Friday. Phone 0300 300 2000 or +44 (0)1633 814000Application number US09/872,528 Other versions US20020188164A1 (en Inventor ... describes in U.S. Pat. No. 5,169,380 an apparatus for alleviating disruptions in circadian rythms of a mammal, ... As discussed in the '922 patent, the ptosis test involves first closing the eyes about half way. Table of Issue Years and Patent Numbers, for Selected Document Types Issued Since 1836 *. The following table displays the calendar year along with the first corresponding document number issued in each year for selected patent document types (utility, design, plant, and reissue patents and statutory invention registrations) Issue. Year. First. Publication number: 20240129497. Abstract: The description relates to resource aware object detection for encoded video streams that can identify frames of the video stream that include an object of interest, such as a human, without decoding the frames. Type: Application. Filed: October 18, 2022.United States Patent and Trademark Office . Patents. Patent Center; ... Search for a patent application. Search by application number, patent number, PCT number, publication number or international design registration number. Application # All fields.Jul 2, 2002 · Official Gazette for Patents. The Official Gazette for Patents is published each Tuesday in electronic form only, and contains bibliographic (front page) text, a representative claim, and a drawing (if applicable) of each patent issued that week. Please note that the Official Gazette Notices are also included in each issue and provide important ... The user may enter 1-7 numeric characters to search trademark related assignment records recorded against the specific trademark number. A registration number may not exceed 7 digits in length. All assignments recorded. All assignments recorded against the specific number will be displayed on the Abstract of Title page.For a patent that has the publication number 2013/9304893, its publication is the year 2013. The seven-digit number after the forward slash is unique and doesn't reflect the patent or application number. The purpose of all of these different numbers is to keep the many patents in their different stages well-organized. The U.S. Patent Office ...Official Gazette for Patents. The Official Gazette for Patents is published each Tuesday in electronic form only, and contains bibliographic (front page) text, a representative claim, and a drawing (if applicable) of each patent issued that week. Please note that the Official Gazette Notices are also included in each issue and provide …To see if your idea has been patented abroad, you'll want to refer to searchable databases made available from other International Intellectual Property offices. Free online access to patent collections is provided by many countries. Some available databases include: 1. European Patent Office (EPO) provides … See moreSwedish Patent Database. Here you can search for Swedish patents, public patent applications, European patents (EP patents) validated in Sweden and European patents with unitary effect (Unitary patents). See About the database for more information. In a Quick search you can search by word, number or a combination.Sign In. Username * Enter User Name. Password * Enter Password. You will need to register as a CIPC customer in order to login into the IPOnline system. Users who login using CIPC customer accounts can create beneficiary accounts that will use funds from their customer account for IP transactions.The following table displays annual, U.S. patent application and grant activity from 1790 to the present. Annual activity is determined based on the calendar year. Calendar Year. Utility Patent Applications (e) (inventions) Design Patent Applications. Plant Patent Applications.Jan 17, 2023 - Virtual. Getting started with the Patent Public Search tool: An overview. On February 1, 2022, the USPTO released its new patent search tool, Patent Public Search. Join us January 17 to learn how to apply your search skills using this advanced, time-saving patent search tool. Dec 9, 2022 - Virtual. United States Patent and Trademark Office - Patent Center Supplementary Protection Certificate Search. Search for an SPC using either the SPC number or patent number. by patent number. Find SPC using patent number. ... Tell us about a problem with this service 8:30am to 5:00pm (UK time) Monday to Friday. Phone 0300 300 2000 or +44 (0)1633 814000Contains links to the various databases of the U.S. Patent and Trademark Office. Provides full-text of patents from 1976 to the present and full-page images for patents starting in 1790. Patent images can only be searched by issue date, patent number, and classification. PatFT, AppFT, Pub EAST, and Pub WEST will be retired in …2 days ago · The United States Patent and Trademark Office (USPTO) is the federal agency for granting U.S. patents and registering trademarks. In doing this, the USPTO fulfills the mandate of Article I, Section 8, Clause 8, of the Constitution that the legislative branch "promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their ... The PATENTSCOPE database provides access to: published International PCT applications in full-text on the day of publication. patent documents from participating national and regional offices. non-patent literature. For your patent searches, you can use a variety of search criterias such as keywords, IPC, chemical compounds, numbers …Basic Search has a Quick Lookup option for fast searching with a patent number or published patent application number. It also has an option for two search query text …Jan 25, 2024 · If you know the classification for the type of item you're interested in, you can quickly locate patents for that type of item regardless of the terminology used in the patent. This will often find patents missed by a keyword search. USPTO 7-Step Patent Search Process. This is a suggested Seven Step Strategy for conducting preliminary searches ... About us Toggle submenu. About us. Find out more about our work, values ... Decisions sorted by number (Art. 112 EPC) Pending petitions for review (Art. 112a EPC) ... Patent knowledge: access our patent databases and search tools. New to patents? Home; Searching for patentsHow to conduct a preliminary U.S. patent search: A step-by-step strategy – provides a web-based video tutorial (36 minutes). The Multi-Step Patent Search Strategy – outlines a suggested procedure for patent searches. ... You can search by application number, patent number, PCT number, publication number or international design registration ...From the homepage, you can begin your search in a few ways: Enter a patent publication or application number, such as US9014905B1, 9014905, or US 14/166,502; Enter freeform text, such as autonomous vehicle camera. You can also enter "exact phrases" and metadata restricts assignee:"Google Inc", inventor:page, and before:2001.; Note: …Jan 10, 2018 · A Patent Number is assigned by the USPTO. A patent number may include up to eight characters and is formatted as follows: Utility : Patent numbers consist of six, seven or eight digits. Enter the Patent number excluding commas and spaces and omit leading zeroes. Reissue : (e.g., Rennnnnn, RE000126) must enter leading zeroes between "RE" and ... United States Patent and Trademark Office . Patents. Patent Center; ... Search for a patent application. Search by application number, patent number, PCT number, publication number or international design registration number. Application # All fields.Paul Fucito or Mandy Kraft. (571) 272-8400 or [email protected] or [email protected]. WASHINGTON – The United States Patent and Trademark Office (USPTO) today announced a new Patent Public Search tool that provides more convenient, remote, and robust full-text searching of all U.S. patents and published …The request must include the application's publication number and payment of the appropriate fee. By facsimile: A copy of a patent application publication, a patent application file contents or a particular paper within the file contents of an patent application that was published under 35 U.S.C. 122(b) may be requested by facsimile, with a credit … : US-PGPUB (U.S. pre-grant applications to 3/2001), USPAT (full-text U.S. patents to 1970, classification and patent number searching to 1790) and USOCR (OCR scanned pre-1970 U.S. patents). By default, all three databases are selected. Use the “ Databases ” button (red rectangle in Figure 1) to show or hide the menu options. Search queries If you are new to patent searches, or want to use the functionality that was available in the USPTO’s PatFT/AppFT, select ‘Basic Search’ to look for patents by keywords or common fields, such as inventor or publication number. Select ‘Advanced Search’ to use full query options as well as to further filter a patent search by database ... Search specific patents by importing a CSV or list of patent publication or application numbers.Patent Public Search | USPTOThe United States Patent and Trademark Office (USPTO) is the federal agency for granting U.S. patents and registering trademarks. In doing this, the USPTO fulfills the mandate of Article I, Section 8, Clause 8, of the Constitution that the legislative branch "promote the Progress of Science and useful Arts, by securing for limited Times …Aug 1, 2023 · For questions, technical issues or troubleshooting, please contact the Patent Electronic Business Center at [email protected] or 866-217-9197. Monday - Friday, 6 a.m. - 12 a.m. ET. share Share this page print Print this page. Additional information about this page. Filing and application management incorporated within a single user interface for ... General steps. Searching U.S. patents. Obtaining full-text. How to search for patents. It is tempting to think all searching can be done electronically – and for the …USPTO’s new Diversity Information Platform: Advancing innovation through data-driven action. The unique online platform is free and available to anyone with an internet connection. Home page of the United States Patent and … Search for a patent application. Search by application number, patent number, PCT number, publication number or international design registration number. Supplementary Protection Certificate Search. Search for an SPC using either the SPC number or patent number. by patent number. Find SPC using patent number. ... Tell us about a problem with this service 8:30am to 5:00pm (UK time) Monday to Friday. Phone 0300 300 2000 or +44 (0)1633 814000The Publication Number search form provides the option for a Specialized Search when searching for patent publication numbers. Patent publication number searches with Document Copies as the output type are limited to 500 records; submitting a request for more than 500 documents only processes the first 500. Patent publication number … United States Prior art keywords score subjects ... Application number US17/106,279 Other versions ... 2021-07-28 Priority to US17/386,606 priority patent/US11348690B2/en The English website of the China National Intellectual Property Administration (CNIPA) offers a free search engine for Chinese patent information (Patent Search and Service System). Espacenet. CNIPA’s Online Gazette. If you require a more detailed answer, please send us your question using the contact form. Search for a patent application. Search by application number, patent number, PCT number, publication number or international design registration number. For a patent that has the publication number 2013/9304893, its publication is the year 2013. The seven-digit number after the forward slash is unique and doesn't reflect the patent or application number. The purpose of all of these different numbers is to keep the many patents in their different stages well-organized. The U.S. Patent Office ...2 days ago · 571-272-3275. [email protected]. The United States Patent and Trademark Office (USPTO) Public Search Facility (PSF), located in Alexandria, Virginia, provides public access to patent and trademark information in a variety of formats, including online, microfilm, and print. Visit our page about using the PSF to learn more about our online records ... IDS form entry for Design Patent Numbers over D1,000,000 (14MAR2024) Users have reported that they are unable to enter issued design patents over D1,000,000 in the SB/08a form. Users are advised to either submit a customized IDS form or enter the design patent number in the Non-Patent Literature section of the SB/08a form as …Feb 1, 2023 · 1. Go to the US Patent Full-Text and Image Database (PatFT) The PatFT holds full-text patents issued from 1976 to the present. Older patents exist in the database as PDF images only. You can only search for pre-1976 patents if you have the patent number or know the official classification scheme. 2. UK patent search. You can search for patents in the UK using the Intellectual Property Office's (IPO): IPO also maintains separate lists for: To find new UK patent applications and changes to the patent register, check the IPO's patents journal. Businesses in Northern Ireland can get advice on IP matters, including patents, from Invest Northern ...How to conduct a preliminary U.S. patent search: A step-by-step strategy – provides a web-based video tutorial (36 minutes). The Multi-Step Patent Search Strategy – outlines a suggested procedure for patent searches. ... You can search by application number, patent number, PCT number, publication number or international design registration ...Jan 17, 2023 - Virtual. Getting started with the Patent Public Search tool: An overview. On February 1, 2022, the USPTO released its new patent search tool, Patent Public Search. Join us January 17 to learn how to apply your search skills using this advanced, time-saving patent search tool. Dec 9, 2022 - Virtual.WIPO - Search International and National Patent Collections. [FP] Front Page. The entered value is searched against the Title, Abstract, Numbers and Names. "electric car"~50. Smith or Klein. WO2010000001. EP2012001709.Table 3 Top 10 most active non-US universities by number of issued biotech patents, 2021 Full size table Fig. 2: Ranking of countries by patent productivity, 2021.The U.S. Patent & Trademark Office (USPTO) Patent Database includes full text of patents from 1790 - present and also provides TIFF images of most of them.. By Patent Number. Go to USPTO Database.; Select Patent Number Search or Publication Number Search. By Subject. Go to USPTO Database and select Quick Search. Enter …Patent Public Search | USPTO - extended window - extended windowPPUBS is a free online search tool for all U.S. published patent applications and patent grants. Currently, approximately 4,500 users are conducting patent …Number of patent applications stifled by U.S. Government secrecy orders 2000-2021 The most important statistics International Intellectual Property Index 2023, by country
A plant patent search covers information about patents granted by the government to protect ownership rights of unique and asexually reproducing plants. As you might expect, plant patents are only a fraction of the patents filed every year. For example, in 2012 there were 576,763 patent applications filed—860 were granted.. Eggs game
Patents with an issue date on or after April 18, 2023 are issued as electronic patent grants (eGrants). Patent Center is available to all users to check application status, electronically file and manage patent applications in a single unified interface. Patent Center features a training mode, which is a simulator to practice filing.While many of the patents were lost, those that were recovered were assigned an X-number to distinguish them from the numbered patents issued after 1836. U.S. Alien Property Custodian Collection The Trading with the Enemy Act of October 6, 1917 delegated the president's right to seize enemy property to the Office of Alien Property …Justia Patents Producing Aural Effects By Stimulation US Patent for Method and device for implementing the radio frequency hearing effect Patent (Patent # 6,470,214) ... Patent number: 6470214 Type: Grant Filed: Dec 13, 1996 Date of Patent: Oct 22, 2002 Assignee ...An official website of the United States government Here’s how you know keyboard_arrow_down. close. An official website of the United States government ... Search patents; Patent applications search; Check private filing status; Check public filing status; File patents; Patent and Trial Appeal Board; Search assignment;Enter a patent number or published patent application number in the Quick Lookup query box and select “Search.” Utility Patent numbers must be entered as a minimum of …Searching for U.S. granted patents and patent applications is conducted on a single interface, Patent Public Search. There is a library of micro tutorial videos on searching this database. All newly issued patents are published weekly in the Official Gazette for Patents which is retrospectively accessible online beginning with the issue …This report shows the number of U.S. patent documents (i.e., utility patents, design patents, plant patents, reissue patents, defensive publications, and statutory invention registrations) granted since 1977, broken down by the state or country of origin (patent origin is determined by the residence of the first-named inventor).An official website of the United States government. Here’s how you know keyboard_arrow_down The U.S. Patent and Trademark Office (USPTO) is the agency responsible for granting U.S. patents and registering trademarks. ... Search. All topics and services ... The Seven Step Strategy. Patent searching tools. Register today. To learn more information about patent searching, visit the search for patents page on the USPTO website. For questions about this event, contact the Texas Regional Office at [email protected] or 469-295-9000. This event is accessible to individuals with …To search for a specific patent, simply type the number in the search box and click the “pn ... the figure below shows a comparison of a portion of U.S. Pat. No. 9,123,123 that contains the ...For questions, technical issues or troubleshooting, please contact the Patent Electronic Business Center at [email protected] or 866-217-9197. Monday - Friday, 6 a.m. - 12 a.m. ET. share Share this page print Print this page. Additional information about this page. Filing and application management incorporated within a single user interface for ...The U.S. Patent & Trademark Office (USPTO) Patent Database includes full text of patents from 1790 - present and also provides TIFF images of most of them.. By Patent Number. Go to USPTO Database.; Select Patent Number Search or Publication Number Search. By Subject. Go to USPTO Database and select Quick Search. Enter …Table 2 Top 5 research institutes ranked by number of issued biotech patents, 2016-2020 Full size table Table 3 Top 10 most active non-US universities by number of issued biotech patents, 2020Patent Public Search | USPTO - extended window - extended windowWatch on. Published on: December 19, 2023 17:30. This microtutorial for Patent Public Search walks you through the steps of finding U.S. patents and published patent applications from particular inventors. Other ways to … Basic Search has a Quick Lookup option for fast searching with a patent number or published patent application number. It also has an option for two search query text boxes, allowing up to two terms to be searched using a Boolean set operator (AND, OR, NOT). It offers a limited number of fields (searchable indexes). To run a Basic Search: 1 ... If you are new to patent searches, or want to use the functionality that was available in the USPTO’s PatFT/AppFT, select ‘Basic Search’ to look for patents by keywords or common fields, such as inventor or publication number. Select ‘Advanced Search’ to use full query options as well as to further filter a patent search by database ... From the homepage, you can begin your search in a few ways: Enter a patent publication or application number, such as US9014905B1, 9014905, or US 14/166,502; Enter freeform text, such as autonomous vehicle camera. You can also enter "exact phrases" and metadata restricts assignee:"Google Inc", inventor:page, and before:2001.; Note: …Online patent tools. Locate online patent services and information. Patent Center. Single interface replacement for EFS-Web, Private PAIR and Public PAIR. Electronic Business Center; Check application status. Check patent application status with Patent Center. Fees and payment. Pay maintenance fees and learn more about filing …US685957A US5215301A US1901052153A US685957A US 685957 A US685957 A US 685957A US 5215301 A US5215301 A US 5215301A US ... 1901-11-05 Publication of US685957A publication Critical patent/US685957A/en 1918-11-05 ... In inductive relation to the primary wire or coil 19 is a secondary s, usually of a much greater number of turns, ….