As to GPLv2 and patents, see http://en.swpat.org/wiki/GPLv2_and_patents
But note that patents are unrelated to copyright, and licesors may only grant their own patents. Third-party licenses always apply (e.g. see how Microsoft was able to extract billions from Android vendors through patents).
As to GPLv2 and patents, see http://en.swpat.org/wiki/GPLv2_and_patents
But note that patents are unrelated to copyright, and licesors may only grant their own patents. Third-party licenses always apply (e.g. see how Microsoft was able to extract billions from Android vendors through patents).