On Thu, Jul 12, 2018 at 12:29:12AM +0000, Tsunakawa, Takayuki wrote:
> From: Nico Williams [mailto:nico@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