by I had to do some patent searches recently for a project I’m working on and found the following sites useful.
Worldwide
Europe
United States
Asia
Feel free to suggest additional sites that you have found useful.
One thought on “Patent Search Sites”
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I saw your website at http://www.mernin.com/blog/?p=76 and wanted to recommend adding http://www.wikipatents.com to the page. WikiPatents has an extensive database of patents open for public comment on the internet, free patent translation into multiple languages, and allows PDF downloading of patents in addition to other free resources. It is a helpful site for anyone with patent related interests.
Have a great day,
Jamie