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QUESTION: Is it possible to tweak utility patent and refile a new patent around the concept after the original patent expires?
My patent is expiring in two years. I’m still trying to build a business and/or license it. Is it possible to tweak utility patent and refile a new patent around the concept after the original patent expires?

ANSWER: You can refile your patent application with a “tweak” now or after your patent expires. However, your prior patent will be considered prior art to your refiled application. In other words, your refiled application must be not be obvious in view of your prior patent.