2004.08.24 09:46 "LZW Patent", by Stefan Wanger

2004.08.24 14:40 "RE: RE: [Tiff] Re: LZW Patent", by Patrick Harris


Our reading of this allows the use of LZW without licence in countries where the patent has expired. If you export to a country where it the patent is still in force then we believe a licence is still required and it would be advisable to contact Unisys.

As to differences between commercial and non commercial software I couldn't say.