The law has changed in the USA. Patent law globally now gives rights to the first to file. Who invented it first is no longer an issue. It's a big change for inventors. Bottom line: if you have a brilliant invention, you must file ASAP if you want temporary monopoly rights.

On Thursday, Nov 16, 2006, at 21:40 Asia/Tokyo, CWFugitt wrote:

I made thousands of them.
Later I did a patent search and found someone had patented a valve identical to my design. I never determined a date comparison so I don't know who did it first.


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