The FreePatentsOnline.com database contains all patents published by the United States Patent and Trademark Office (USPTO) since number 4,000,000. New patents are published by the USPTO every Tuesday, and are automatically added to the database. Images may be viewed from the patent text pages in either the Alterna TIFF or PDF formats. Also includes European (EP) patents. Your search terms will be highlighted on the full-text pages for ease of locating. Although the database access is free, registration is required.
YEARS COVERED: 1974 (December 16) to the present
WHERE TO FIND: Web
SUBJECTS INCLUDE: US patents and European patents