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.The process of filing of Patent Application in India, couple of forms (Form-1, Form-2, Form-3, and Form-5) has to be submitted to the patent office. Detailed pro c e d u re s and instructions accompany the application forms. Explore California and Washington rental apartment homes, investor information, careers, retail, contact us, and more.