District of Columbia
United States Patent and Trademark Office
Mr. Chankong is an associate in the Electronics Group. Drawing from a wide breadth of patent knowledge obtained from previous experiences as a primary patent examiner at the U.S. Patent Office and as an associate in private practice, Mr. Chankong is able to provide unique insight to patent-related matters.
His practice areas include the preparation and prosecution of patent applications, U.S. Patent Office patent litigation including post-grant reviews, inter partes reviews, and covered business method reviews. Additionally, Mr. Chankong has conducted patent portfolio due diligence and infringement and validity opinions in the context of licensing negotiations. Further, he has experience in Section 337 investigations before the U.S. International Trade Commission and district court litigation. Mr. Chankong's technical experience spans numerous disciplines including wired and wireless communications, digital devices, semiconductor devices, software-related inventions, telecommunications, and networking.
Prior to joining Sterne Kessler, Mr. Chankong worked for three and a half years as an associate at another law firm in Washington, DC, and nine years as a primary patent examiner at the U.S. Patent Office. As an associate, he assisted in depositions and the preparation of the technology tutorial in a Section 337 investigation. During his time at as a primary patent examiner, Mr. Chankong examined patent applications in the fields of computer networks, network security, and image processing.
Mr. Chankong is also a contributing author of Patent Office Litigation, Second Edition, published in 2017, the book provides a fresh and comprehensive exploration of patent office litigation proceedings, including how the proceedings interact with other aspects of patent procurement and enforcement, while delivering practical analysis and advice. This second edition of Patent Office Litigation is the follow up to the first version of the book that was published in 2012 by Thomson Reuters Westlaw that focused on the contested proceedings that were introduced under the America Invents Act that year.
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