Serving Clients in all 50 States and the District of Columbia — Providing Patent and Trademark Services before the U.S. Patent and Trademark Office. (73) Filing an application without an attorney is possible, but even with some guidance it is definitely not without its challenges.The first filing is due on the five (5) year anniversary of the registration date. Although trademarks are also filed with the USPTO, an attorney can file a trademark with the USPTO without taking the patent bar. Free patent help is available to low income inventors.