On Thu, Jul 12, 2018 at 12:29:12AM +0000, Tsunakawa, Takayuki wrote: > From: Nico Williams [mailto:n...@cryptonector.com] > > My advice is to write up a patent grant that allows all to use the > > relevant patents royalty-free with a no-lawsuit covenant. I.e., make > > only defensive use of your patents. > > How can one make defensive use of his patent if he allows everyone to > use it royalty-free? Can he use his patent for cross-licensing > negotiation if some commercial database vendor accuses his company > that PostgreSQL unintentionally infringes that vendor's patent?
https://en.wikipedia.org/wiki/Defensive_termination
