From: smb@research.att.com
Date: Wed, 25 May 94 13:33:37 PDT
To: norm@netcom.com (Norman Hardy)
Subject: Re: Graph isomorphism based PK cryptosystems?
Message-ID: <9405252033.AA18948@toad.com>
MIME-Version: 1.0
Content-Type: text/plain


	 I talked to a lawyer very recently about this. She does not
	 specialize in patent law but does deal with it. The situation
	 is confusing and fluid.  Here is what I think I heard,
	 ommiting occasional caveats:

	 If the patent office knows of prior art (as indicated in some
	 publicat ion)it will not issue a patent. If it does not know
	 then it may issue the patent.

Etc.  Note that the patent office itself has a publication for
stuff that you don't want to patent.  I know of no better way
to get something into their files.