From owner-freebsd-hackers  Mon Jun 11 15:53:44 2001
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From: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
To: Jonathan Lemon <jlemon@flugsvamp.com>
Cc: hackers@freebsd.org
Subject: Re: Patented algorithm in FreeBSD
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> So it looks like we have prior art by around 6 years, which would
> invalidate the patent iff it was the same thing.

Does it mean that the algorithm is free to use by everyone or free to use
only in freebsd? I would like to implemet these page table back pointers
too and I'm scared by the patent... I don't know how US patent system
works. 

Mikulas


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