Bar Admissions

  • District of Columbia
  • Pennsylvania
  • U.S. Patent and Trademark Office


  • J.D., with distinction, Ohio Northern University, Claude W. Pettit College of Law, 1996
    Associate Editor, Law Review
    Moot Court
  • B.S.E.E., University of Pittsburgh, 1992
T +1 202.344.4048
F +1 202.344.8300

Jeffri A. Kaminski


Jeffri Kaminski focuses on protecting and enforcing his client’s intellectual property rights.  He has experience in all aspects of patent prosecution, litigation and licensing.  He works primarily in the semiconductor, software, Internet, mobile and telecommunications fields.

Jeffri counsels clients regarding the protection of their intellectual property.  He works with his clients to help identify intellectual property and to protect it.  Jeffri has prepared and prosecuted hundreds of patent applications relating to mobile devices, networking, semiconductors, software, computer architecture, and business process management.  His practice includes all aspects of patent prosecution before the U.S. Patent and Trademark Office, including successfully arguing appeals.  Patents that Jeffri has obtained on behalf of his clients have been successfully enforced and licensed, generating revenue for his clients and keeping competing products out of the market.

Jeffri is also active in litigating patent infringement actions. He is currently or has recently been involved in the following representative patent litigations:

  • Automated Video Tech., LLC. V. BlackBerry Corp. et al.
    Lead counsel for defendants in a patent infringement case involving video compression. Obtained dismissal of case at close of fact and expert discovery and award of fees and costs.
  • MAZ Encryption Tech., LLC v. BlackBerry Corp. et al.
    Lead counsel for the defendants in a case involving technology for encrypting and decrypting documents. The case is ongoing.
  • YYZ v. Software AG, et al. 
    Lead counsel for the defendants in a patent suit involving software for simulating business processes. We obtained a dismissal with prejudice at the close of document discovery.
  • Arendi S.A.R.L. v. Sony Mobile Communications, et al.
    Representing the defendants in a case involving address handling within mobile devices.  The case is stayed pending IPRs.
  • Cyberfone v. Cellco, et al.
    Representing one of the defendants in a patent suit involving form based operating systems used in mobile devices. The case was resolved favorably for our client.
  • TecSec, Inc. v. International Business Machines Corp., et al.
    Representing defendants in a case alleging infringement of multiple patents related to data encryption and cryptography. Obtained a stipulation of non-infringement of the majority of patents in the case. The case is now stayed pending reexamination.
  • Select Retrieval V. Amerimark, et al.
    Represented one of the defendants in a patent suit involving retrieving information from a database records having plural fields.  Venable obtained a favorable result for our client.
    Represented defendants in a multi-district case alleging infringement of multiple patents related to telephony and call processing operations.
  • Innovative Solutions and Support, Inc. vs. J2, Inc., Joseph Caesar, James Zachary, Zachary Technologies Inc., and Kollsman, Inc.
    Represented defendant in a case alleging patent infringement and theft of trade secrets relating to air data computers.
  • Hewlett-Packard Co. v. Intergraph Corp.
    Represented third-party defendants in multiple patent action alleging that certain products purchased from his clients infringed the patents-in-suit related to computer-aided drafting/computer-aided engineering software systems.
  • Software AG and Software AG, Inc. v. BEA Systems, Inc.
    Represented plaintiffs in a case alleging infringement of a patent related to middleware that enables communications between a software program residing on one type of computer at any location and a software program residing on another type of computer at a second location.


Jeffri is a member of the American Bar Association Intellectual Property Section, AIPLA, Patent Lawyers Club of Washington, and the District of Columbia Bar Association’s Intellectual Property Section.