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A complete guide to patents, trademarks, and copyright. Clicking Patent Search will enable you to search and view the full text of all U.S. patents and patent applications from 1976 to the present. For earlier years you can search and view selected parts of the patents. To view the full-text of patents with their images on this site, you must first download a plug-in. To view the full-text with images in PDF of any US patent, once you have the patent number go to either of the next two sites.
The Canadian Patent Database contains patent documents from 1869 to the present time. The patent information consists of patent document images, bibliographic data and patent document text. Click on (i) next to title for more information.
For patents granted prior to August 15, 1978, the text of the abstracts and claims is not available. These patents can only be searched by their patent numbers, their titles, the assignee or inventor names, or classification number.
Canadian patent applications can be filed in either English or French. All patent documents on this site have both English and French titles, but between 1960 and 1978 only the language used at the time of filing is available.
While this introduction to patent searching tools is primarily aimed at librarians, this open-access journal article gives anyone interested in patent information sources a foundation on which to build knowledge and skills in this area.
This agency of the United Nations promotes the protection of intellectual property throughout the world through cooperation among states and in collaboration with other international organizations. WIPO has several free publications on many different aspects of the patenting process.
The Patent Information Users Group, Inc. (PIUG) – The International Society for Patent Information is a not-for-profit organization for individuals having a professional, scientific or technical interest in patent information. The mission of PIUG is to support, assist, improve and enhance the success of patent information professionals through leadership, education, communication, advocacy and networking. Through this international forum and discussion, we also promote and improve the retrieval, analysis and dissemination of patent information.