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Worldwide Patent & Invention Websites

Here is a list of the major patent sites from all over the world. I have also included links to a few useful articles and patent process assistance companies (those deemed safe by technical reviewers).

Click here to get the AlternaTIFF browser plug-in to permit viewing of patent images. IE does not ship with a TIFF image viewer, and one is required to view patent images on both the USPTO site and the FreePatentsOnline.
Custom Search
More than 10,000 searchable pages indexed.

Your RF Cafe
Progenitor & Webmaster

Click here to read about RF CafeKirt Blattenberger... single-handedly redefining what an engineering website should be.

View the YouTube RF Cafe Intro Video Carpe Diem!
(Seize the Day!)

5th MOB: My USAF radar shop

Airplanes and Rockets: My personal hobby website

Equine Kingdom: My daughter Sally's horse riding website