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Clark A. Jablon focuses his practice primarily in preparing and prosecuting patent applications in the software and computer field. Clark employs a unique hands-on approach with clients, involving the inventors in the entire claim drafting process which results in higher quality patents. While Clark works with large and small clients, he has extensive experience in assisting technology startups and has developed a novel approach in working with first-time inventors to help them create quality invention disclosures that are needed for preparing the patent applications. Clients also benefit from Clark’s eight years of experience as a Patent Examiner which provides the extra edge that is often needed to get winning results.

Clark A. Jablon is a founder of Panitch Schwarze Belisario & Nadel, LLP and is a registered patent attorney.

Clark focuses his practice on all phases of patent prosecution, including drafting and prosecuting patent applications, preparing patentability and infringement opinions, conducting intellectual property due diligence investigations and providing litigation support for patent cases. He is experienced in all phases of electronics, computer hardware and software, Internet technologies and computer-implemented business methods. Clark is also experienced in Inter Partes Review (IPR) proceedings conducted before the Patent Trial & Appeals Board (PTAB).

Clark has more than 30 years of experience in patent law, including eight years in the public sector as a Patent Examiner with the United States Patent and Trademark Office. He was named in the 2010-2021 editions of Chambers USA.

Prior to founding Panitch Schwarze Belisario & Nadel, LLP, Clark was Counsel at Akin Gump Strauss Hauer & Feld LLP. Previously, Clark was an associate at Panitch Schwarze Jacobs & Nadel, and a Patent Agent at Seidel, Gonda, Lavorgna & Monaco, P.C.

Clark received his B.E. with honors in electrical engineering from the State University of New York at Stony Brook and his J.D. from the Temple University James E. Beasley School of Law. He is a member of the Pennsylvania Bar, the American Intellectual Property Law Association, and the Philadelphia Intellectual Property Law Association.

Clark has written and lectured extensively in the area of patent procurement and computer-implemented business methods and is a leading practitioner in the U.S. for procurement of computer-implemented business method patents.

His technology proficiencies include computer software/computer hardware, business methods, including financial applications and e-commerce internet technologies, electronic devices and hardware circuitry, aArtificial intelligence/ machine learning/ natural language processing, “Big Data” management, monetization of video streaming content, RFID technology, medical imaging software, traffic (roadway) engineering, database replication, gaming equipment, casino management systems, augmented reality in gaming systems, paper and electronic lottery tickets, and lottery ticket management system, network-connected surveillance equipment for target tracking and detection, medication vending and dispensing devices, web browser technology, viewer tracking systems, and advertisement detection using automatic content recognition, cable T.V. technology (e.g., set-top boxes, signal generation/transmission), financial instruments, electronic payment systems, electronic publishing, social networks, clinical trial automation software, cryptography (e.g., encryption), smart cards, digital rights management, check processing, debit processing, data compression, ionization (electrostatic charge/discharge) devices, GPS technology for cell phones and touchpads.


  • Philadelphia Intellectual Property Law Association (PIPLA), 1993 — Present
  • American Intellectual Property Law Association (AIPLA), 1993 — Present



“All of the attorneys at Panitch Schwarze Belisario & Nadel, LLP are outstanding, especially Clark Jablon. He has secured over four dozen patents for our firm and helped us monetize them in significant ways. We can’t say enough for their patent and trademark expertise.”

– Anonymous


“Panitch Schwarze Belisario & Nadel, LLP is an excellent law firm for patent work in the Philadelphia area. In particular, Clark Jablon has successfully prosecuted dozens of patents on behalf of our company. We have had three successful monetizing events and overall experienced a hugely positive ROI as a result of his efforts.”

– Anonymous


“The team of patent attorneys at Panitch Schwarze Belisario & Nadel, LLP is top-notch and provides great value for the investment. In particular, Clark Jablon is our favorite resource there, having secured dozens of patents for our company. He has a collaborative approach for claim drafting that results in appropriately broad language. Our monetizing efforts as a result have a strong ROI.”

– Anonymous


“John D. Simmons and Clark A. Jablon along with the rest of the team from Panitch Schwarze have blown us away with the results they are now delivering. We will have five newly granted patents this year alone, and we have nine more applications currently pending.”

– Andy Palmer, Tamr

  • Illinois Tool Works Inc. (SIMCO Division) v. Ion Systems, Inc.
  • IDN Technologies, LLC v. Verisign
  • Merit Industries, Inc. v. JVL Corporation
  • ITT Manufacturing Enterprises, Inc. v. Samsung and Sprint
  • Elantech Devices Corporation v. Synaptics, Inc.
  • Named a Pennsylvania “Super Lawyer,” 2020 – 2024, by Thomson Reuters, publishers of Pennsylvania Super Lawyers
  • Selected as a “Leader in the Field” of Intellectual Property for Pennsylvania by Chambers & Partners USA, 2010 — Present
  • Selected to The Best Lawyers in America®, 2021 – Present

Clark is a volunteer legal mentor for entrepreneurs seeking intellectual property and patent counseling through the Corzo Center at The University of the Arts in Philadelphia. He enjoys running, golfing and cycling in his free time.

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Panitch Schwarze commits the time to listen to and evaluate each client’s unique needs so we can advise on the best forms of IP protection.