Carl Fink wrote:
The license was owned by Unisys and IBM. The one expired in 2003 was the Unisys license. The IBM license expires on 08/11/2006 (in the USA).On Wed, Dec 14, 2005 at 02:34:31PM -0800, Steve Lamb wrote:IIRC one of the algorithms that can be used in zip is lzw which is (or was) patented.The patent expired in 2003. http://www.sslug.dk/patent/lzwunisys.html
It's the same algorithm used on GIF.