From: Nico Williams [mailto:nico@cryptonector.com]
> On Thu, Jul 12, 2018 at 12:29:12AM +0000, Tsunakawa, Takayuki wrote:
> > 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
Thank you, his looks reasonable to give everyone the grant. Then, I wonder if the community can accept patented code
ifthe patent holder grants this kind of license.
Regards
Takayuki Tsunakawa