• Bio
  • Credentials
  • Areas of Practice
  • Memberships
  • Community Involvement

Chad G. Clark


Chad is a former Air Force pilot and an experienced intellectual property attorney. He received his undergraduate degree from the United States Air Force Academy and went on to fly reconnaissance missions all over the world in RC-135 Rivet Joint and Cobra Ball aircraft. After 10 years of service, Chad separated from the military and attended Stanford Law School, where he studied intellectual property law and was an editor for the Stanford Law Review. After graduation, he moved with his family to Cincinnati, Ohio, and began his legal practice at Vorys, Sater, Seymour and Pease as a business litigation associate.

In 2012, Chad joined Clark Business & Health Law, a boutique healthcare and intellectual property firm. There, he stood up his own intellectual property practice, including drafting and prosecuting utility patents, design patents and trademarks before the USPTO, and counseling businesses in the biotech and healthcare industries on IP strategy, licensing, research collaborations and non-disclosure agreements.

IP Strategy Experience
One of Chad’s early clients was Eccrine Systems, Inc., a biotechnology startup. Eventually, he joined their executive team as VP of intellectual property. In that role, he developed the company’s IP strategy and drafted its patent applications involving physiology, DNA aptamer and other electrochemical sensing technology, electronics and software elements. As Eccrine grew into a 55-person company, Chad was named general counsel, assuming additional responsibility for the company’s legal operations including managing all corporate contracts, licensing, product launch, employment, HR and corporate governance functions.

In addition to his considerable IP experience, Chad has litigated False Claims Act (FCA) defense cases on behalf of government contractors and healthcare entities, as well as residential mortgage-backed securities (RMBS) cases. He has also worked extensively for clients needing healthcare transactional support, advising businesses and healthcare institutions on compliance with complex regulatory obligations, including Stark, Anti-Kickback and HIPAA requirements.

As a member of Martensen IP, Chad brings his considerable and varied experience, both as a legal professional and as a service member, to bear for his intellectual property clients. His legal advice reflects a deep understanding of business legal needs, as well as his lifelong commitment to excellence, attention to detail and integrity.

Certified Legal Specialties

  • Patents, USPTO

Issued Patents

  • D853,416: Display Screen or Portion Thereof with Graphical User Interface
  • US 9,867,539: Sweat Sensing Device Communication Security and Compliance
  • US 10,136,831: Sweat Sensing with Chronological Assurance
  • US 10,201,279: Sweat Sensing Device Communication Security and Compliance
  • US 10,254,089: Firearm-Mounted Defense Spray Foregrip System
  • US 10,258,262: Sweat Sensing Device Communication Security and Compliance
  • US 10,405,794: Sweat Conductivity, Volumetric Sweat Rate, and Galvanic Skin Response Devices and Applications
  • US 10,451,623: System for Chemiluminescence-Based Detection of Methicillin-Resistant Staphylococcus Aureus
  • US 10,485,460: Devices for Integrated Indirect Sweat Stimulation and Sensing
  • US 10,506,968: Devices Capable of Fluid Sample Concentration for Extended Sensing of Analytes
  • US 10,646,142: Smart Sweat Stimulation and Sensing Devices
  • US 10,674,946: Sweat Sensing Devices with Sensor Abrasion Protection

  • J.D. Stanford Law Review Stanford Law School - Graduate School
    Palo Alto , CA 2010
  • M.A. History University of Nebraska - Graduate School
    Lincoln , NE 1998
  • B.S. Concentrations in Physics and History, Academic Distinction, Military Distinction United States Air Force Academy - Undergraduate School
    Colorado Springs , CO 1997
  • Senior Evaluator Pilot, Major United States Air Force, Offutt AFB, NE 1997 - 2007
  • Business Litigation Associate Vorys, Sater, Seymour & Pease, LLP, Cincinnati, OH 2010 - 2012
  • Managing Counsel Clark Business & Health Law, Cincinnati, OH 2012 - Present
  • General Counsel & VP of Intellectual Property Eccrine Systems, Inc., Cincinnati, OH 2015 - 2020
  • Patent Preparation and Prosecution
  • Trademarks
  • IP Strategy
  • Licensing
  • Ohio State Bar Association
  • Association of Corporate Counsel
  • National Resources Defense Council
  • American Civil Liberties Union
  • Arbor Day Foundation
Our Values What Our Work Means
  • We Maintain A Record of Success in Achieving Patent Coverage
    Every attorney has 20+ years of experience and has drafted and prosecuted hundreds of successful patent applications.
  • We Function At The Intersection Of Business, Law And Technology

    Our experience and knowledge converge at the intersection of intellectual property and government contracting. We are uniquely positioned not just as a provider of technical counsel, but also as part of business advisory teams.

  • We Provide Superior Legal Guidance and Value
    Experience in various business and engineering disciplines creates a knowledge base that makes it possible for our attorneys to assist clients in situations where IP legal advice only makes sense if placed within the context of a client’s complete business strategy.
  • We Develop Strategies to Enhance Competitive Advantage
    We come up with great IP strategies to enhance our client’s competitive advantage but recognize that the technology will change, the environment will change, the competition will change and so will our plan; we’re ready.
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