I know there is a lot of debate about it, but as far as I understand it GPL is still regarded as including an implied patent grant. Fwiw: http://en.swpat.org/

I know there is a lot of debate about it, but as far as I understand it GPL is still regarded as including an implied patent grant. Fwiw: http://en.swpat.org/wiki/GPLv2_and_patents http://en.swpat.org/wiki/GPLv2_and_patents