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For questions involving the creation, use, sale, import or export of patented items without permission from the patent holder or any person legally entitled to grant a license. Also for questions regarding the legal implications for the patent holder or the infringer. If you are beeing sued or put on notice for patent infringement please note that this can cost A LOT of money, you should consult a patent attorney.

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Are royalties due to a patent holder who's work has been cited by other inventors?

A number of years ago (in 1978) my father created and patented a type of exercise equipment. The patent has been cited by a number of other patent holders and was wondering if this meant there should …
Dana Reitano's user avatar