We deal with your type fairly regularly over at hackaday and other discussion sites.
The Lyman extruder documents (including BOM and assembly and 3 view drawings) are published for free. The parts are easy to obtain.
How are you (the possible patent holder) going to stop individuals from sourcing the parts and building these machines?
The reprap machines are also, Im sure, violating multiple patents in the US. Go ahead and try to stop the international audience from furthering the science and art. I'll just use TOR and download the assembly drawings from evil foreign servers.