Patent Pro Bono Program
Arizona inventors are served by the Arizona Public Patent Program, part of the USPTO's nationwide pro bono program that matches inventors who qualify (based on income) with volunteer attorneys and patent professionals that will help you file your patent application.
Law school clinics
Arizona inventors and entrepreneurs can obtain free legal help for both patent and trademark matter by contacting the University of Arizona (Patent and Trademark): Law-IPClinic@list.arizona.edu. This is part of a nationwide law school clinic program that provides patent and trademark applicants with assistance from law school students working under close supervision of their faculty supervisors. There are 19 clinics that serve the entire United States.