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Finnegan, Henderson, Farabow, Garrett & Dunner LLP

Work +1 571 203 2700
Fax +1 202 408 4400

Christopher P. Isaac

Work +1 571 203 2740
Finnegan, Henderson, Farabow, Garrett & Dunner LLP

Work Department

Intellectual Property


Christopher Isaac focuses his practice on litigation and client counseling in a variety of chemical, electrical, and mechanical disciplines.

Mr. Isaac has represented clients as both plaintiffs and defendants before numerous U.S. courts in virtually all phases of complex district court lawsuits involving patents, trademarks, trade secrets, and antitrust issues. He has actively participated in dozens of court hearings, including complex discovery disputes, jurisdictional hearings, bifurcation hearings, summary judgment hearings, and Markman hearings. In addition to actual experience in the courtroom, Mr. Isaac has taken or defended more than a hundred depositions of fact and expert witnesses, including inventors, patent law experts, technical experts, and damages experts. Mr. Isaac's experience in all aspects of discovery and motion practice is extensive. He has coordinated overall case strategy and day-to-day litigation activities in dozens of high-value litigations for clients such as, Sony, Coca-Cola, Topcon, BTG, and Organon Teknika.


  • District of Columbia Bar
  • Virginia State Bar
  • American Intellectual Property Law Association


  • George Washington University, National Law Center
    J.D., with honors, 1987
  • University of Pittsburgh
    B.S., Mechanical Engineering, 1981

United States: Intellectual property

Patent: prosecution (including reexamination and post-grant proceedings)

Within: Patent: prosecution (including reexamination and post-grant proceedings)

Finnegan, Henderson, Farabow, Garrett & Dunner LLP has in-depth expertise and experience in patent office examinations, from prosecution, reexamination and reissue proceedings, to appeals before the Patent Trial and Appeal Board (PTAB) at the US Patent and Trademark Office (USPTO), where the group is highly recommended for representing petitioners and patent owners from a broad range of industries. The prosecution team files US and foreign patent applications for utility, design and plant inventions, and its patent office trials practice handles inter partes reviews (IPRs), post-grant proceedings and covered business method (CBM) reviews. The ‘phenomenal team’ includes the highly recommended Reston-based Erika Harmon Arner, who was appointed president of the PTAB Bar Association; Washington DC-based Charles Van Horn, who is ‘a luminary in his field’; chemical and biotech specialist Adriana Burgy, also based in Washington DC, who ‘provides exceptional thinking in terms of navigating patent prosecution in light of competing technology’; Atlanta’s Virginia Carron, who has ‘exceptional legal and practical business sense’; and, also in Atlanta, PTAB trial practice head Jason Stach, who represents clients before the PTAB and in Federal Circuit appeals stemming from reexaminations and court actions. Managing partner Mark Sweet (Washington DC) counts NanoFlex Power Corporation as his client, which he assists with its worldwide patent portfolio related to organic photovoltaic devices. Sweet and Reston-based Christopher Isaac are acting for Caterpillar in prosecuting several hundred utility and design patent applications in the US and elsewhere, assisting with opinions involving issues of patent validity and infringement, and handling IPR proceedings.

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