In filing a patent application and paying required fees, the USPTO provides forms and an electronic filing tool. The process of filing a patent in Washington State is similar to filing a patent anywhere in the United States.A stepbystep overview of a patent application and maintenance process. The five stages of a patent process. If you're looking for a patent attorney in Seattle, WA, contact TBillick Law PLLC at 206-494-0020 or complete our online contact form to send us a message. Blank Rome has a deep bench of 38 patent prosecutors who have the technical, legal, and business acumen to secure patents that are both strong and enforceable. Applicants are required to prepare an application and file it with the USPTO, after which point the patent prosecution begins. Draft and file a U.S. provisional or non-provisional patent application. Prosecute the Patent Application. After filing the patent application, you will work with a patent examiner at the USPTO to prosecute the application.