Amster Rothstein and Ebenstein, LLP - Intellectual Property Law

Jung S. Hahm Senior Counsel

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Jung S. Hahm, a physicist by training, concentrates on complex patent preparation and prosecution, patent litigation, non-infringement, validity and patentability studies, patent portfolio management, international patent prosecution and licensing.

He works on all aspects of patent preparation, prosecution and post-grant proceedings. This encompasses drafting utility and design patent applications, amendments and appeal briefs; continuation practice; PCT practice; management of international patent prosecution; and inter partes and ex parte reexaminations. Mr. Hahm’s experience covers a broad range of technologies including network security, 3D graphics display, optical and acoustic devices, cooking ovens, disposable absorbent undergarments, foam glass materials and photolithography.

He has litigated patent cases involving consumer electronics, flash memory devices, semiconductor memories and liquid cooling systems. His experience encompasses pleadings, fact and expert discovery, claim construction briefing and hearing, patent infringement and invalidity analyses, motion practice and jury trial. In addition, he has represented clients in patent licensing disputes before the American Arbitration Association.

He has prepared non-infringement, invalidity, patentability, enforceability and right-to-use opinions, and evaluated standards-related patent assertions relating to patents for a wide range of consumer electronics fields, network security, wireless communications, cryptography, video/audio signal processing, loudspeaker, electronic debit transaction processing, healthcare monitoring systems, biosensors, children’s training pants and financial business methods.

Experienced in patent licensing and transactions, Mr. Hahm has drafted and negotiated patent license and settlement agreements; developed substantive defensive positions for technical negotiations; prepared documentation for demonstrating patent infringement and conducted due diligence for intellectual property assets of technology companies involved in corporate transactions.

As part of ARE’s secondment program, Mr. Hahm was seconded to Panasonic Corporation from 2008 to 2009 as in-house patent counsel for Panasonic's AVC Networks Company and Intellectual Property Rights Operations Company in Osaka, Japan. While at Panasonic, he advised on U.S. patent law and was actively involved in license negotiations, related contract drafting and technical analyses.


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Certification/Specialties
  • Registered to Practice Before the U.S. Patent and Trademark Office
Bar Admissions
  • New York
  • New Jersey
  • U.S. District Court Eastern District of New York
  • U.S. District Court Southern District of New York
  • U.S. Court of Appeals Federal Circuit
  • U.S. District Court District of New Jersey
Education
  • Cornell Law School, Ithaca, NY, 2000, J.D., Fredric H. Weisberg Prize in Constitutional Law, Cornell Law Review, Associate, Managing Editor
  • University of Illinois at Urbana-Champaign, Urbana, IL, 1991, M.S., Physics
  • Cornell University, Ithaca, NY, 1989, A.B., Physics, cum laude, Phi Beta Kappa
Professional Associations & Memberships
  • American Intellectual Property Law Association
  • American Bar Association
Additional Languages
  • Korean

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