Application Registration of Patent Agent, Form 22 pdf (51 KB). In the case of startups and small entities, the application form in Form 28 must be used to file for patents.Enter the USPTO registration number of the patent practitioner. Patent ClaimMaster is a software tool for automating patent proofreading, patent drafting, office action shell generation, and patent downloading. If you live within Maryland, Virginia, West Virginia, or DC and would like to apply to the regional FCBA IAP, please fill out the Application form below. This fill-in form permits the entered data to be automatically loaded into the Office's electronic systems, such as PALM when electronically submitted. The US Patent and Trademark Office (USPTO) is the agency responsible for granting US patents and registering trademarks. Need Help with Provisional Patent? To file a patent application, a set of forms has to be submitted to the patent office. The forms can be submitted online.