Patent holder's demand: stop discussing my patent - Boing Boing

But one thing I'm dead certain of is that it is not illegal to discuss a patent's technical workings. The entire point of the patent system is to give a monopoly to an inventor in exchange for full disclosure of the invention so that other inventors may study and learn from it. In other words, the patent system exists to encourage discussion of patented inventions, not to censor them.

Cory Doctorow on the limitations of enforcing a patent.