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Old 1st October 2011, 04:01 PM   #11
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I believe that in the US Patent system, even a commercial competitor is permitted to build one unit for testing and research (no they can't sell that unit).
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Old 1st October 2011, 05:28 PM   #12
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Quote:
Originally Posted by Speedskater View Post
I believe that in the US Patent system, even a commercial competitor is permitted to build one unit for testing and research (no they can't sell that unit).
Anyone can develop improvements on a patented invention in secret. It's done all the time. The can't show the copy of the patented invention to others, offer it for sale, or publish it. They can do what they want with their own improvement on the patented invention however.
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Old 4th October 2011, 04:14 AM   #13
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Originally Posted by dirkwright View Post
Anyone can develop improvements on a patented invention in secret. It's done all the time. The can't show the copy of the patented invention to others, offer it for sale, or publish it. They can do what they want with their own improvement on the patented invention however.
We got it now! Thanks.
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