From: | "Tsunakawa, Takayuki" <tsunakawa(dot)takay(at)jp(dot)fujitsu(dot)com> |
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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 00:29:12 |
Message-ID: | 0A3221C70F24FB45833433255569204D1FA4E121@G01JPEXMBYT05 |
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From: Nico Williams [mailto:nico(at)cryptonector(dot)com]
> You're proposing to include code that implements patented ideas with a
> suitable patent grant. I would be free to not read the patent, but what
> if the code or documents mention the relevant patented algorithms?
>
> If I come across something like this in the PG source code:
>
> /* The following is covered by patents US#... and so on */
I got it. Your concern makes sense.
> 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?
Regards
Takayuki Tsunakawa
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