Forum OpenACS Development: Re: Looks like our .xql files infringe on this new Microsoft patent

I don't think this affects us. SGML has been around for a long time. The slashdot article seems to make this clear (at least to me).

A lot of folks read the abstract of the patent instead of the claims. The abstract is written upon application, while the claims are the final protected art. The final claims could be so restrictive as to make the patent almost worthless, but once you have already filed a patent, you usually try to get something through the system.