Yes, that is part of the patent law. 35.271.a: ... whoever without authority makes, uses, offers to sell, or sells any patented invention ... infringes the

Yes, that is part of the patent law. 35.271.a: ... whoever without authority makes, uses, offers to sell, or sells any patented invention ... infringes the patent. That is why that one copier patent troll (can't remember the specifics) files suit against businesses that purchase copier, but not the manufactures themselves.