Where Technology, Innovation and

Protection Come Together

Stephen L. Sulzer



Emory Unniversity School of Law, J.D.

Northwestern University, B.A.

Practice Areas



Medical Devices

e-Commerce and Data encryption

Automotive components:

Fuel systems

Interior Design

Frame Reinforcement

Passive restraint systems


Satellite Technology

Electrical equipment


Design Patents

Bar Memberships  

District of Columbia

District of Columbia Court of Appeals

US Court of Appeals for the Federal Circuit

US Court of Federal Claims

Supreme Court of the United States

Appeals for the District of Columbia Circuit

District Court for the District of Columbia


United States Court of Appeals 9th Cir.  


United States Court of Appeals 7th Cir.  


United States Disrict Court of the Eastern District


Mr. Sulzer represents clients in a variety of areas, including patent, antitrust, and unfair competition litigation and counseling. For more than three decades, he has been trial counsel in numerous federal court and ITC proceedings, including several of the ITC’s most significant Section 337 investigations. He is rated AV Preeminent by Martindale-Hubbell. Mr. Sulzer has also been selected by American Lawyer Media as a Top Rated Lawyer in Intellectual Property and Litigation and as one of Washington DC & Baltimore’s Top Rated Lawyers. Mr. Sulzer is also recognized internationally as an expert in patent licensing and licensing-related antitrust issues. For more than a decade, he taught a graduate-level class on licensing and related antitrust and misuse concerns for the Swiss Federal Institute of Technology.


Mr. Sulzer is often called upon to take over matters in which other lawyers were unable to obtain the client’s desired results, and he has a long track record of success in the federal courts and before the ITC. For example, Mr. Sulzer:


Obtained summary judgment of non-infringement and affirmance before the Federal Circuit on behalf of Toyoda Gosei North America Corp., TG Fluid Systems USA Corp., and A. Raymond, Inc. in Honeywell International, Inc. v. ITT Industries, Inc., 452 F.3d 1312 (Fed. Cir. 2006), a patent infringement action brought by Honeywell relating to electrically conductive fuel filters.

Represented complainant in In re Certain Wire Electrical Discharge Machining Apparatus, ITC Inv. No. 337-TA-290, the first investigation in which the ITC granted a remedy to a foreign owner of a U.S. patent.


Led the successful defense of Chrysler’s and Magna’s integrated child seat in a series of patent infringement actions, culminating in entry of summary judgment of non-infringement in Hassel v. Chrysler Corp., 43 U.S.P.Q.2d (BNA) 1554 (S.D. Ohio 1997).

Represented DiscoVision Associates in a series of actions to enforce its portfolio of patents on optical disc technology, including successful trial of infringement and validity issues in DiscoVision Associates v. Disc Manufacturing, Inc., 25 F. Supp.2d 301 (D. Del. 1998)

Successfully represented Zurich Insurance Co. in the first litigated bond forfeiture proceeding before the ITC, in Certain Lens-Fitted Film Packages, ITC Inv. No. 337-TA-406



Mr. Sulzer’s practice involves diverse technologies, including B2B electronic clearinghouse systems, e-commerce and data encryption, computer network security systems, Internet convergence technology, a wide range of automotive components (e.g., fuel system, vehicle interior, frame reinforcement, and passive restraint system components), industrial laser control systems, robotics, machine tools, medical devices, wireless computer gaming devices, optical disc technology, color electronic pre-press computer and imaging equipment, security system control software, satellite technology, pharmaceuticals, power generation equipment, packaging for pharmaceutical, food, and other consumer products, and paper products. He also has significant experience litigating U.S. design patent.