Gregory S. Nieberg

Gregory S. Nieberg

Shareholder | Post-Grant Proceedings
212.849.3338 LinkedIn Profile


  • BSE, Electrical Engineering & Systems Engineering, University of Pennsylvania, magna cum laude
  • MSE, Electrical Engineering, Princeton University
  • JD, Brooklyn Law School, magna cum laude

Key Technologies

  • Consumer Electronics
  • Semiconductor Fabrication
  • Semiconductor Device Physics
  • Internet Search and Protocols
  • Client-Server Communications
  • Client-Server Protocols
  • Digital Signal Processing
  • Wireless Software/Hardware

Practice Groups

Admitted to Practice

  • New York
  • US Court of Appeals for the Federal Circuit
  • US District Court, Eastern District of New York
  • US District Court, Southern District of New York
  • US Patent and Trademark Office


  • New York


Greg Nieberg is a member of the Post-Grant Proceedings Practice, focusing primarily on inter partes review (IPR) and patent reexaminations before the USPTO’s Patent Trial and Appeal Board (PTAB). Greg has also represented clients at all stages of patent litigations, and is experienced handling matters at the Federal district courts (including the District of Delaware and Eastern District of Texas), the International Trade Commission (ITC), and arbitrations before the International Chamber of Commerce (ICC).

Prior to joining Wolf Greenfield, Greg was a senior associate in the patent litigation group at an Am Law 50 law firm, where his practice focused on a wide range of IP matters involving complex electrical and computer technologies, including consumer electronics, semiconductor fabrication and device physics, and software and hardware related to various wireless standards and protocols, including Bluetooth, Wi-Fi, and 2G/3G/4G/5G cellular phone-standards.

Greg also maintains a robust pro bono practice. He was awarded the 2011 Award for Excellence in Pro Bono Advocacy by Sanctuary for Families for the successful representation of a woman seeking asylum from Burkina Faso, where she faced retaliation for avoiding a forced marriage and FGM of her daughters. Greg also represented another client that successfully vacated a state criminal conviction on the grounds of ineffective assistance of appellate counsel over 10 years after pleading guilty and having a direct appeal denied.


Post Grant Experience

  • Represented leading technology company as petitioner in two IPRs that successfully invalidated all challenged claims involving patents relating to voice-browser internet-search technology.  
  • Represented leading semiconductor manufacturer as petitioner in IPR that successfully invalidated all challenged claims involving patent related to MIMO wireless communication techniques.
  • Represented leading consumer device manufacturer as petitioner in several IPRs involving patents related to headphone designs and integrated hardware and wireless functionalities.  
  • Represented start-up company as petitioner in several IPRs involving patents related to proxy-server communications and data distribution over networks.
  • Huawei Device Co., Ltd. v. Maxell, Ltd. (PTAB). Represented Huawei as petitioner in two instituted IPRs of patents directed to various cellular phone functionalities involving positioning and base-station selection techniques. 
  • Hughes Network Sys., LLC, v. Elbit Sys. Land & C4I Ltd. (PTAB). Represented Elbit Systems Land and C4I Ltd. as patent owner in an IPR proceeding filed by Hughes Network Systems LLC challenging Elbit’s patents relating to satellite and cellular communication systems.

Patent Litigation Experience

  • Maxell, Ltd. v. Huawei Device USA, Inc. et al. (District Court). Represented Huawei defendants in lawsuits involving patents on various cellular phone functionalities 
  • Dominion Energy, Inc., et al. v. Alstom Grid LLC (District Court). Represented Alstom Grid in patent litigation involving electrical-grid management software.
  • Linex Technologies, Inc. v. Hewlett-Packard Company et al. (District Court). Represented Hewlett-Packard in patent infringement litigation involving MIMO wireless communication systems for IEEE 802.11 Wi-Fi standards. Matter resolved favorably on summary judgment of non-infringement and invalidity.
  • Optis Wireless Tech., LLC et al. v. Huawei Techs. Co. Ltd. et al. (District Court). Represented Huawei defendants in lawsuits involving patents involving cellular phone standards.
  • In the Matter of Certain Wireless Devices with 3G and/or 4G Capabilities and Components Thereof, Investigation Nos. 337-TA-868 and 337-TA-800 (USITC). Represented Huawei respondents in a multi-patent, multi-respondent patent infringement litigation involving smartphones, tablets, and access points for 3G and 4G cellular standards.
  • Peregrine Semiconductors, Corp. v. RF Micro Devices, Inc. (District Court). Represented Peregrine in claims and counter-claims of patent infringement, involving design, layout, and fabrication of radio frequency (RF) switches.
  • In the Matter of Certain Semiconductor Devices, Semiconductor Device Packages, and Products Containing Same, Investigation No. 337-TA-1010 (USITC). Represented Complainant in patent infringement case involving semiconductor fabrication and packaging technology.
  • In the Matter of Certain Woven Textile Fabrics and Products Containing Same, Investigation No. 337-TA-976 (USITC). Represented respondent textile manufacturer in a patent infringement case involving woven textile fabrics.
  • Represented major pharmaceutical company in Hatch-Waxman litigations against several generic drug manufacturers relating to oral contraceptives.


  • Ranked among the top 4% of best performing and most active practitioners—out of over 6,000 attorneys—when representing petitioners before the PTAB (Patexia’s IPR Intelligence Report) 
  • Hugo Otto Wolf Memorial Prize in Electrical Engineering, “awarded to that member of the senior class in each department of the School of Engineering and Applied Science who, during the senior year, by the thoroughness and originality of his or her work, meets with the greatest approval of the professors in charge” (University of Pennsylvania)
  • Gordon Wu Fellow, “Princeton’s most prestigious award for graduate study in engineering … made to new graduate students who demonstrate the potential to be world leaders in their fields in the 21st century” (Princeton University)
  • Prince Scholarship, Dean’s Merit Scholarship, Faculty Scholarship Centennial Grant (Brooklyn Law School)
  • 2011 Award for Excellence in Pro Bono Advocacy (Sanctuary for Families)

Recent News

See All News