"The PUBPAT said it had submitted previously unseen prior art
showing that the patent, which was not due to expire until 2013,
was obvious and, as such, should have never been granted...
"The PUBPAT said the fact that Microsoft had not offered
licences for use in free and open source software has led to
speculation that the company intended to use its patents to fight
the competitive threat posed by this genre of software..."
