In the United States – and in most nations around the world – patent infringement is not a crime, so enforcing an infringed patent the responsibility of the patent owner. A U.S. Patent identifies the inventor or inventors of the patented technology, and the patent may also show an “assignee” – usually a business or university – that is the owner of the patent.
Whether the owner of a U.S. Patent is a person, a business, a university or any other entity – and regardless of where the owner of the U.S. Patent is located – it is the patent owner’s responsibility to enforce the patent. In the U.S., a patent is enforced by filing a patent infringement lawsuit in U.S. District Court as explained in https://inspirationfeed.com/how-inventhelp-can-help-you-protect-your-invention/. Many patent owners have filed patent infringement claims and have secured multi-million dollar settlements, however it costs from several hundred thousand to several million U.S. Dollars to litigate a patent infringement lawsuit!
Infringers of U.S. Patents are often large corporations, and if the owner of the infringed patent is also a large corporation, the ensuing legal battle is a contest among equals, since both parties to the lawsuit can afford the cost of trying or defending a patent infringement lawsuit. However, if the infringer is a large business enterprise, and the patent owner is an individual, small to mid-sized business, university or other entity that does not have several hundred thousand to several million U.S. Dollars to invest in patent infringement litigation, it is most definitely not a contest among equals and it is all explained in this great post on https://www.oddee.com/how-inventhelp-can-assist-new-inventors/.
If you believe your U.S. Patent has been infringed, there are law firms that can consider your patent and the allegedly infringing products or services.