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Summary:
A database of Canadian Patent documents back to 1920. Information includes images, bibliographic details and abstracts. Kanadalaisia patentteja vuodesta 1920 lähtien. Patenteista kuvat, bibiliografiset tiedot ja abstraktit.
Summary:
Googlen patenttihaku sisältää kaikki Yhdysvaltain patenttiviraston (USPTO:n) hyväksymät patentit ja miljoonia patenttihakemuksia. -- Google Patents covers the entire collection of issued patents and millions of patent applications made available by the United States Patent and Trademark Office (USPTO).
Summary:
Four WIPO classification systems: International Patent Classification (IPC), Nice Classification, Locarno Classification, Vienna Classification. Classification systems which organize information concerning inventions, trademarks, and industrial designs. Regularly updated to include changes and advances in technology and commercial practices. This site contains basic information concerning four international classifications, their use worldwide, principles of their application and revision and explanatory material. It also includes a latest edition of each classification in the English and French languages. Luokitusjärjestelmä patenttien, tavaramerkkien yms. kuvailuun. Palvelu sisältää neljä kansainvälistä luokitusjärjestelmää.
Summary:
The database includes information about all US patents (including utility, design, reissue, plant patents and SIR documents) from the first patent issued in 1790 to the most recent patent issue week. The data included in the patents appear as printed on the patent on the day of issue. Changes to patent documents contained in Certificates of Correction and Re-examinations Certificates are not included in the searchable full-text of the patent databases, but are available as additional full-page images at the end of each patent's linked full-page images. Some patents and images have been excluded from the database. For more information, see the Patent Full-Text Database Contents at http://patft.uspto.gov/help/contents.htm Sisältää tiedot USA:n patenttidokumenteista, niihin liittyvistä muutoksista ja myös rauenneista patenteista.