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#11 |
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diyAudio Member
Join Date: Sep 2002
Location: Lakewood, Ohio
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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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Kevin |
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#12 |
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diyAudio Member
Join Date: May 2011
Location: Virginia
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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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#13 | |
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diyAudio Member
Join Date: Jul 2004
Location: toronto
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Quote:
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miklos |
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