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If the unpatented part is put into production by the original inventor, can they still patent it many years later?

• srtjstjsj 10y ago
  No, they can't. gravypod's explanation is not how patents work.
• mark-r 10y ago
  Don't know if things have changed recently, but last time I was involved you'd have a year after going into production to apply for the patent. Miss that deadline, kiss your patent goodbye.