Trademark is the infringement element. If a part is produced, with the Bowtie or it's likeness, the manufacturer is infringing on the Trademark, not a patent. The reproduction items, ie, the dog dish hub caps, have a GM Licensing agreement and they are marked accordingly, or the legal team will unleash their dogs on the manufacturer with a cease & desist, followed by legal actions. The reproduction hub caps are licensed, through Counterparts, which is one of the licensed manufacturers, with the written consent of GM and each item sold is closely monitored and a royalty is paid.
