2 votes

Which countries require inventors to get a permission (e.g., a foreign filing license) to be allowed to file a patent in another country?

Many countries have some similar requirement. The WIPO lists 34 member states with some foreign filing rules. Some require it if the inventing was done in their country, others have rules for ...
George White's user avatar
  • 28.9k
1 vote

My grandfathers patented invention

I see in the comments you list EP0460797A1. This application was granted as EP0460797B1 on 06/21/1995 and expired on 04/23/2011. So this patent is no longer in force and the invention described by it ...
Eric S's user avatar
  • 11.1k

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