Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!convex!texsun!digi!jgay From: jgay@digi.lonestar.org (john gay) Newsgroups: comp.sys.amiga.misc Subject: Re: AT&T using patent to go after people using X Message-ID: <1991Feb25.161416.4349@digi.lonestar.org> Date: 25 Feb 91 16:14:16 GMT References: <8428@ucdavis.ucdavis.edu> Organization: none Lines: 30 From article <8428@ucdavis.ucdavis.edu>, by zerkle@iris.ucdavis.edu (Dan Zerkle): > In article <1991Feb24.175524.20105@coplex.uucp> dean@coplex.uucp (Dean Brooks) writes: > >>BTW, does anyone think that AT&T can make a viable claim off this? > > No, they can't. However, there are a whole lot of companies out there Unfortunately, yes they can. They way the patent system works today they can. There are quite a few current patents that are obvious that have been upheld in court. Among these is the XOR cursor technique that Cadtrak "owns" even though it was used years before the patent was granted and is considered an obvious technique by most software people. The irony of the AT&T patent is that it was used by MIT in the Lisp Machine System way before AT&T patented it. Since it was not documented very well, this may not count as prior art. BTW, there is also a rumor that the use of include files (#include ) has been patented. At this time it is just a rumor, but a very persistent one. For more info see the "Software Patents" article in the November 1990 issue of Dr. Dobb's Journal. Also check the gnu groups for on going discussions. Then get pissed and join The League for Programming Freedom and write your congress person and senator. If you don't, you may end up having to either write software only for a very large company (one that can afford the legal hassle (cost, big $$) of patent searches, cross-licensing, etc. or work in a different country in order to avoid some of the patent bullshit. Of course this will be limited to the countries that don't have or recognize algorithmic and software patents. john gay. No, I don't speak for my company (they don't even know that I can speak).