Google has compiled the whole collection of public patents from the United States Patent and Trademark Office.
There have been around 7 million patents issued by the USPTO.
This site would have been extremely useful during my engineering studies at RPI.
Here's a fun patent for lipstick.
![](http://www.angiedawn.net/blog/uploaded_images/lipstick-731513.jpg)
1 comment:
That is something else! :)
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