From our inception in 1957 to the present we have focused solely on IP. We cover every aspect of patent and trademark law. We have obtained more U.S. patents than any other law firm in the world. We are always one of the top two firms in the annual rankings by number of issued patents. We provide counseling and opinions on the full range of patent issues in every technology from biosimilars to nanotechnology. Sughrue has been a leader in interference law for over 40 years and has earned an international reputation in this arcane field.