If you're an inventor or small business owner, you may be eligible for free legal assistance in preparing and filing a patent application. Examples should not be stapled, glued or taped to the application.To obtain free patent filing assistance, students can take advantage of the Innovation Clinic at the University of Chicago Law School. The cost of attaining a trademark varies depending upon the filing basis selected, and which initial application form is used. Finally, Applicants will be responsible for any fees for drafting formal drawings if needed for their patent application, subject to Applicant approval. Forms on this website are PDFs with fillable fields. Forms should be downloaded to your computer before filling in the fields. Our Chicago trademark attorneys provide Illinois and USPTO (federal) trademark registration services to businesses of all sizes. Explore our expert guide to patent filing in Chicago. Get practical tips and essential insights to protect your innovations effectively.