Diana M. Sangalli, P.C.

has practiced in the area of intellectual property law for more than two decades, with a focus on intellectual property litigation and patent preparation and prosecution.

In her litigation practice, Ms. Sangalli has represented clients in patent infringement and trade secret matters related to a range of diverse technologies, including optical disc recognition, wireless LANs, telecommunications networks, webpage authentication, offshore platforms and medical devices . She has appeared in district courts throughout the country, taking the lead at claim construction hearings and cross-examining technical experts at trial. Ms. Sangalli’s experience in litigation matters extends to appellate proceedings, including brief writing and oral arguments before the Court of Appeals for the Federal Circuit and the Court of Appeals for the Sixth Circuit. She also has represented clients in litigation involving commercial disputes, breach of contract and product liability causes of action.

In addition, Ms. Sangalli has extensive experience preparing and prosecuting patent applications covering a variety of electrical, mechanical and computer-related technologies for small, medium and large-sized corporations in the oil and gas, computer, temperature instrumentation, semiconductor and consumer product industries. Representative subject matter includes wireless communication networks and protocols, fiber optic temperature and vibration sensing systems, temperature sensing devices used in the petrochemical industry, seismic surveying systems, and downhole tools for hydrocarbon wells. Her prosecution and litigation skills have also been applied in multiple inter partes review proceedings before the Patent and Trademark Appeal Board.

Prior to entering the practice of law, Ms. Sangalli spent almost a decade working as a research and development engineer at Hughes Aircraft Co. and Sigmapower, Inc. in California, where she designed battery charging circuitry and complex high-voltage power supply systems used in satellite communication networks, shipboard phased array radar installations and missile guidance systems.

Ms. Sangalli is a 1995 magna cum laude graduate of the University of Illinois College of Law, where she was editor-in-chief of the University of Illinois Law Review, and a graduate of the University of Illinois at Urbana-Champaign (B.S.E.E.)

Experience

•Duane Morris LLP
- Partner, 2014-present
- Special Counsel, 2011-2013
•Trop, Pruner & Hu, P.C.
- Shareholder, 2004-2011
•Holman, Keeling & York, P.C.
- Associate, 2003-2004
•Fulbright & Jaworski LLP
- Counsel, 2001-2003
•Fletcher, Yoder & Van Someren
- Associate, 1999-2001
•Foley & Lardner
- Associate, 1995-1998
•Sigmapower, Inc.
- Senior Design Engineer / Manager of Engineering Projects, 1987-1992
•Hughes Aircraft Co.
- Member of Technical Staff, 1983-1987

Selected Publications

•Co-author, When Is a Warning Necessary? Common Law Exceptions to the Duty to Warn, 15th Annual Products Liability Conference, University of Wisconsin Engineering Department, November 2003