Application Registration of Patent Agent, Form 22 pdf (51 KB). To file a patent application, you will have to submit form 1, form 2, form 3 and form 5.Due to the enactment of the America Invents Act in 2012, this page contains forms for patent applications filed on or after September 16, 2012. The nonrefundable policy applies to both accepted and rejected filings. 1500 Spring Garden Philadelphia, PA 19130 United States.