Mendelsohn Dunleavy

The firm provides legal representation for intellectual property matters, including patent and trademark prosecution, registration, licensing, and enforcement. Its attorneys prepare patent and trademark availability, validity, and infringement opinions, as well as freedom-to-practice opinions and other intellectual property due diligence. Copyright services include registration and licensing, and the practice also handles trade secret matters. Post-grant work includes patent reissues and reexaminations, European patent oppositions, and trademark cancellations. Patent services cover U.S. and foreign applications, with technology experience in areas such as biotechnology, software, electrical engineering, and medical devices. The firm also offers hourly and fixed-fee billing arrangements. Mendelsohn Dunleavy is a boutique law firm in Philadelphia.