Article View: sci.crypt
Article #2495Re: Legal Stuff!
From: Steven Bellovin
Date: Fri, 25 Dec 1992 19:18
Date: Fri, 25 Dec 1992 19:18
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2272 bytes
In article <1992Dec25.172233.1663@cbnews.cb.att.com>, jap@cbnews.cb.att.com (james.a.parker) writes: > In article <1992Dec25.060924.14629@netcom.com> tenney@netcom.com (Glenn S. Tenney) writes: > >35 USC 271 (g) > >"Whoever without authority imports into the United States or > >sells or uses within the United States a product which is made by a > >process patented in the United States shall be liable as an infringer, if > >the importation, sale, or use of the product occurs during the term of > >such process patent. > > If the "process" is encryption of plaintext by a public key, then wouldn't > the "product made by the process" be: > > o The public/private key pair, and > o Text encrypted by the public key > > To cover the code, I would expect the statute to say something like, "product > incorporating the process," or "product making use of the process". Case law > may have (mistakenly, IMHO) extended the law to include this, but the statute > listed doesn't seem to say that. Umm -- there's a legal subtlety here. Note the phrase ``process patent''. There are (at least?) two forms of claims that can appear in a patent, a ``method'' claim and a ``process'' claim. The difference is a bit fuzzy to me, but if you don't claim a process for doing such-and-such, as well as, or instead of, the method (which covers the actual apparatus), I don't think the quoted clause applies. The question here is whether or not the RSA patent has process claims. I don't know, and my copy of the patent is in my office, which I don't expect to visit till ~Jan 4. No, I'm not a laywer, though I sometimes seem to play one on the net. But a patent lawyer did explain to me about process vs. method claims; if I got it wrong, it's my fault, not his....
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Newsgroups: sci.crypt Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!uwm.edu!linac!att!att!dptg!ulysses!ulysses!smb From: smb@research.att.com (Steven Bellovin) Subject: Re: Legal Stuff! Message-ID: <1992Dec25.191804.10559@ulysses.att.com> Date: Fri, 25 Dec 1992 19:18:04 GMT References: <1992Dec22.092736.21737@netcom.com> <a_rubin.725045922@dn66> <1992Dec25.060924.14629@netcom.com> <1992Dec25.172233.1663@cbnews.cb.att.com> Organization: AT&T Bell Laboratories Lines: 32