Brian D. Siff

Partner

  • Brian D. Siff
  • Phone: +1 212 692 1055

    Import to Address Book

  • Duane Morris LLP
    22 Vanderbilt
    335 Madison Avenue, 23rd Floor
    New York, NY 10017-4669
    USA

Brian D. Siff is a litigator and legal counselor who guides clients through matters involving intellectual property—including issues involving patent, trademark, trade dress, trade secret, copyright and unfair competition law. He is regarded as a well-established and trusted adviser with a comprehensive understanding of the legal, technical and commercial elements of his clients' enterprises.

His extensive experience includes: litigating and enforcing intellectual property rights; managing large-scale patent and trademark portfolios including advising on all aspects of patent and trademark prosecution; developing management strategies for large U.S. and European companies that wish to reduce the prospect of infringement issues as a preventive measure to avoid costly litigation; building strategies for maximizing the value of his clients' intellectual property; and managing patent review processes under the America Invents Act, including inter partes review, covered business method review, and post-grant review proceedings.

Mr. Siff has vast experience in and a deep understanding of a wide range of industries including consumer goods (toys, sports/health/fitness, housewares, apparel), artificial intelligence (AI), aircraft, automotive, medical devices, telecommunications, Internet/e-commerce, finance, investment services, banking, auction and cannabis. Mr. Siff serves as the team leader of Duane Morris’ Toy Industry Group.

Representative Matters

    Patent Litigation

  • Centre Firearms Co., Inc v. Otter Creek Labs, LLC, Civil Action No. 6:25-cv-00210 (E.D.Ky. 2025) Representing Centre Firearms in patent infringement action involving monolithic noise suppression devices for firearms.

  • Alpha Modus Ventures, LLC v. Rackspace US, Inc., Civil Action No. 25-963 (W.D. Tx. 2025) Defended Rackspace in patent infringement action involving Fibre Channel over Ethernet (FCoE) for enabling the transportation of Fibre Channel data frames and primitive signals.

  • Melissa & Doug, LLC v. Scholastic Corp., Make Believe Ideas, Ltd. and Klutz Corp., Case No. 1:22-cv-06314 (S.D.N.Y. 2022) Defended Scholastic et al. in patent infringement action involving books with embedded popping mechanisms.

  • Heavy Duty Lighting, Inc. v. RAB Lighting, Inc., Case No. 3:21-cv-00128 (N.D. Tex. 2020) Defended RAB Lighting in patent infringement action involving light emitting device.

  • Sisvel International S.A. v. Consolidated Communications Enterprise Services, Inc., Civil Action No. 1:19-cv-00331-LPS-CJB (D. Del. 2019). Defended Consolidated Communications in an infringement action involving standards-essential patents related to digital subscriber line (DSL) technology for providing broadband access to data networks, such as the Internet.

  • Zen Design Group Ltd. v. Scholastic Inc., Case No. 2:16-cv-12936-RHC-EAS (E.D. Mich. 2016). Defended Scholastic in patent infringement action involving ultra-violet pen-lights utilizing invisible ink that fluoresces under ultra-violet light.

  • Spirit Monkey, LLC v. Scholastic Book Fairs, Inc. and Scholastic Inc., Cause No. 5:17-cv-1066 (W.D. Tex. 2017). Defended Scholastic and Scholastic Book Fairs in a patent infringement action involving embroidered sticks used as a reward or incentive, or to promote an activity, event, brand, product and/or service, and the related mark for the goods.
  • Soverain IP, LLC v. Datapipe, Inc., Civil Action No. 2:17-cv-00292 (E.D. Tex. 2017). Defended Datapipe in a patent infringement action involving patents directed to certifying authorization in computer networks, managing transfers of information in communication networks, and systems for counting Web access requests.
  • Digital Audio Encoding Systems, LLC v. Atlantic Tele-Network, Inc., Civil Action No. 1:16-cv-00486 (D. Del. 2016). Defended Atlantic Tele-Network in a patent infringement action involving methods and apparatuses for encoding signals.
  • International License Exchange of America, LLC v. ATN International, Inc., Commnet Wireless, LLC, and Choice Communications, LLC, Civil Action No. 1:16-cv-00718 (D. Del. 2016). Defended ATN International et al. in a patent infringement action involving formatting of data frames for virtual local area networks (VLANs).
  • Preservation Wellness Technologies, LLC v. Allscripts Healthcare Solutions, Inc., Civil Action No. 2:15-cv-01559 (E.D. Tex. 2015), and Preservation Wellness Technologies, LLC v. Allscripts Healthcare Solutions, Inc., et al., Appeal No. 2016-2193 (Fed. Cir. 2016). Defended Allscripts Healthcare Solutions in a patent infringement action involving methods for organizing, displaying and sharing medical patient care information, and a related appeal to the U.S. Court of Appeals for the Federal Circuit.
  • Uniloc USA, Inc. and Uniloc Luxembourg S.A. v. Allscripts Healthcare Solutions, Inc., Civil Action No. 6:14-cv-00631 (E.D. Tex. 2014). Defended Allscripts Healthcare Solutions in a patent infringement action involving methods for organizing, recording and displaying medical patient care information.
  • Innovative Automation LLC v. Scholastic Storia Inc. and Scholastic Book Stores Inc., Civil Action No. 2:14-cv-00775 (E.D. Tex. 2014). Defended Scholastic in a patent infringement action involving a method for duplicating and transferring electronic files for e-books.
  • eDekka LLC v. Scholastic Inc., Case No. 2:14-cv-481 (E.D. Tex. 2014). Defended Scholastic in an e-commerce patent infringement action involving online "shopping cart" technology.
  • buySAFE, Inc. v. Google Inc., Civil Action No. 3:13-cv-781-HEH (E.D. Va. 2013). Represented buySAFE in a patent infringement action involving methods for monitoring and analyzing consumer behavior data to predict consumer demand in relation to offering a third-party transactional guarantee.
  • RPost Holdings, Inc., RPost Communications Ltd. and RMail Ltd. v. Infogroup, Inc., et al., Case No. 2:12-cv-00517-JRG (E.D. Tex. 2013). Defended Scholastic Inc. in a patent infringement action involving electronic mail marketing services and technologies that allow users to track, report and analyze data regarding electronic messages.

  • Princeton Digital Image Corporation v. Scholastic Corporation, et al., Case No. 1:13-cv-00410-UNA (D. Del. 2013). Defended Scholastic Corporation in an e-commerce patent infringement action involving JPEG image coding to produce various-sized JPEG images of products sold through Scholastic's online e-commerce website, including enlarged views of those products.

    • Trademark, Trade Dress, Copyright and Unfair Competition Litigation

  • Centre Firearms Co., Inc. d/b/a Centre Support Services v. Otter Creek Labs, LLC, Civil Action No. (E.D.N.Y. 2025) Representing Centre Firearms in action involving breach of contract, misappropriation of trade secrets in violation of the federal Defend Trade Secrets Act, common law misappropriation of trade secrets, and unjust enrichment concerning reflex adapters for firearms having a Hybrid Universal Base.

  • Fashioncraft-Excello, Inc. v. ST & Company, LLC and Smoke Tokes, LLC, Case No. 2:22-CV-07387 (C. D. Cal. 2022) Represented Fashioncraft-Excello in copyright infringement action involving novelty smoking items.

  • Fashioncraft-Excello, Inc. v. BG Wholesale, Inc. and BG Wholesale Trading, Inc., Case No. 2:2023cv01193 (C. D. Cal. 2022) Represented Fashioncraft-Excello in trademark and copyright infringement action involving novelty smoking items.

  • Apexart Curatorial Program, Inc. v. Apex Art Lab LLC, Case No. 2:2022cv01810 (2022) Represented Apexart in trademark infringement action involving APEXART mark.

  • Apexart Curatorial Program, Inc. v. Bayside Rollers, LLC, Case No. 2:22-cv-01807 (W. D. Wash. 2022) Represented Apexart in trademark infringement action involving APEXART mark.

  • Klauber Brothers, Inc. v. Elegant Moments, Inc. et al., Civil Action No. 1:21-cv-06571-ER (S.D.N.Y. 2021) Defended Elegant Moments in copyright infringement action involving lace patterns for lingerie.

  • Black Dog Tavern Company, LLC v. Danny Kay and Harbor Boys Apparel, LLC, Cancellation No. 92078179 (2021) Represented Danny Kay and Harbor Boys Apparel in trademark cancellation proceeding before Trademark Trial and Appeals Board (TTAB) involving Black Dog Paddle Logo.

  • Black Dog Tavern Company, LLC v. Danny Kay and Harbor Boys Apparel, LLC, Opposition No. 92078179 (2021) Represented Danny Kay and Harbor Boys Apparel in trademark opposition proceeding before Trademark Trial and Appeals Board (TTAB) involving Black Dog Paddle Logo.

  • Shandong Shinho Food Industries Co., Ltd. v. May Flower International, Inc., GB Green Gastronome, LLC, and Xiaobo Yao, Civil Action No. 1:19-cv-1621-MKB-RER (E.D.N.Y 2019). Representing Shandong Shinho in an action involving trademark infringement of the CONG BAN LV mark for use with soybean paste and other processed food products.

    • Other Litigation

  • JP Exhibition LLC v. Atomic Entertainment Development, LLC, Civil Action No. 25-CV-1146 (Superior Court of Dekalb County, State of Georgia, 2025) Representing JP Exhibitions in breach of contract, breach of good faith and fair dealing, and violation of the Official Code of Georgia Annotated § 44-7-13 and § 44-7-14 involving management of Plaintiff’s venue at Pullman Yards.

Admissions

  • New York
  • Connecticut
  • U.S. Court of Appeals for the Federal Circuit
  • U.S. District Court for the Eastern District of New York
  • U.S. District Court for the Southern District of New York
  • U.S. Patent and Trademark Office (USPTO)

Education

  • Washington University School of Law, J.D., 1990
  • Cornell University, B.S., Mechanical Engineering, 1987

Experience

  • Duane Morris LLP
    - Partner, 2016-present
  • Schiff Hardin LLP
    - Partner, 2012-2016
  • Dickstein Shapiro LLP
    - Partner, 2004-2012
  • Pennie & Edmonds LLP
    - Partner/Associate, 1989-2004

Professional Activities

  • Toy Association
      - Member, Intellectual Property Committee
  • American Bar Association
  • Connecticut Bar Association
  • International Trademark Association
  • New York Intellectual Property Law Association
  • New York State Bar Association
  • U.S. Patent Bar Association
  • Washington University School of Law Intellectual Property Advisory Board

Honors and Awards

  • Client Service All-Star, BTI Consulting Group (2013)
  • "Top 50 Lawyers Under 45," IP Law & Business (2008)
  • AV Preeminent® Peer Review Rated by Martindale-Hubbell®