| From: | "Tsunakawa, Takayuki" <tsunakawa(dot)takay(at)jp(dot)fujitsu(dot)com> |
|---|---|
| To: | 'Nico Williams' <nico(at)cryptonector(dot)com> |
| Cc: | Andres Freund <andres(at)anarazel(dot)de>, David Fetter <david(at)fetter(dot)org>, 'Craig Ringer' <craig(at)2ndquadrant(dot)com>, "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | RE: How can we submit code patches that implement our (pending) patents? |
| Date: | 2018-07-12 01:10:33 |
| Message-ID: | 0A3221C70F24FB45833433255569204D1FA4E392@G01JPEXMBYT05 |
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| Lists: | pgsql-hackers |
From: Nico Williams [mailto:nico(at)cryptonector(dot)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 if the patent holder grants this kind of license.
Regards
Takayuki Tsunakawa
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