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Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!cs.utexas.edu!asuvax!ncar!hsdndev!cmcl2!kramden.acf.nyu.edu!brnstnd
From: brnstnd@kramden.acf.nyu.edu (Dan Bernstein)
Newsgroups: comp.sources.d,sci.crypt
Subject: Re: a real-life patent issue. [it is not safe out there]
Message-ID: <19060:May2120:58:0591@kramden.acf.nyu.edu>
Date: 21 May 91 20:58:05 GMT
References: <22734@yunexus.YorkU.CA> <1991May17.144807.29903@hellgate.utah.edu> <a_rubin.674776385@dn71>
Organization: IR
Lines: 16

In article <a_rubin.674776385@dn71> a_rubin@dsg4.dse.beckman.com writes:
> Another message in a related thread stated (quoting actual patent law)
> that only using or selling is an infringement -- making a patented
> invention is not infringement.

This is not correct. If someone invents the bottomless soap dish and
patents it, then anyone who makes, uses, or sells bottomless soap dishes
is liable for infringement. 

On the other hand, if someone invents a new way of curing rubber and
patents it, then there's no way to infringe the invention by making or
selling it. You can make rubber, and you can make cured rubber, but how
do you make the *process* of curing rubber? That doesn't make sense. The
only way to infringe a method patent is to use the method.

---Dan