Information
U.S. Patent & Trademark Office
PatentCafe - online intellectual property focus with advice, news, and etc.
International
Search
(U.S.) Index of Patents - 1935+, Docs Stacks C 21.5/2:
(U.S.) Index of Trademarks - 1927+, Docs Stacks C 21.5/3:
U.S. Patent Bibliographic Database - full text search from 1976 and from 1790-1975 via paten # or classification {these are in TIFF format which requires a plug-in}
FreePatentsOnline - from December 1976 on, free-text searching
Google Patent Search - full-text searching 1776-present, "related patents" feature, best results if use -the advanced search best approach
General Land Office automated records project - Certain states; pre-1908 patents: homesteads, cash entry, Armed Occupation Act & private land claims; cadastral survey plat index; Docs CD-ROM I 53.57:
Forms
Downloadable PTO forms - in PDF format
Related web sites - including many international patent offices
Data
Tools & Data sets which include:
- JEPS: The Johnson-Evenson Patent Set: a recently revised webpage with tools including the Yale Technology Concordance (YTC) and data on international patenting by sector 1976-present
- USHiPS: The US Historical Patent Set: for tools including the Wellesley Technology Concordance (WTC) and data on US patenting by sector 1840-present
- OECD Patent Data: for tools including the OECD Technology Concordance (OTC)
and data on OECD patenting by ISIC-defined sector
PTDLP
Patent & Trademark Depository Library Program - patent and trademark information.
Locate a PTDLP Libraries collection; Denver Public Library is the closest library with a full collection of patents. (And will do searches for a charge.)
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