to je podivne s IP v USA. v autorskom zakone maju napriklad takuto klauzulu: (sice copyright a patent su dve rozne veci)

(b) In no case does copyright protection for an original work of authorship extend to any idea, procedure, process, system, method of operation, concept, principle, or discovery, regardless of the form in which it is described, explained, illustrated, or embodied in such work.

http://www.law.cornell.edu/uscode/html/uscode17/usc_sec_17_00000102----000-.html