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Banner & Witcoff, Ltd


Banner & Witcoff, Ltd - Chicago
  • Ten South Wacker Drive
  • Suite 3000
  • Chicago
  • Illinois
  • USA
  • IL 60606-7407
  • Managing Partner: Thomas K Pratt
  • Number of partners: 51
  • Number of lawyers: 94
  • Languages: English

Firm Overview:
A national law firm with more than 95 attorneys and agents and 95 years of practice, Banner & Witcoff provides legal counsel and representation to the world’s most innovative companies. The firm’s attorneys are known for having the breadth of experience and insight needed to handle complex patent applications as well as handle and resolve difficult disputes and business challenges for clients across all industries and geographic boundaries.

Main Areas of Practice:  

Banner & Witcoff is a preferred litigation provider for Fortune 500 companies, midlevel companies and technology-focused start-ups. The firm has a deep bench of seasoned trial and appellate lawyers with industry experience and advanced degrees in engineering and biotechnology fields. Many of the firm’s litigators have served as former law clerks to federal judges and have former in-house counsel experience. The firm has assisted and consulted in connection with enforcement activities worldwide, playing key roles in the strategy and coordination of foreign litigation. Banner & Witcoff lawyers try cases before judges and juries in both federal and state courts around the country, at the appellate levels, and before the ITC and the USPTO. Banner & Witcoff’s litigators have successfully conducted jury trials throughout the United States in wide ranging technical fields, including in such diverse technologies as computer software, recombinant DNA pharmaceuticals, prosthetic hip implants, process industrial controls, automotive components, plastic injection molds and textiles. The firm has successfully represented clients in numerous landmark cases, including several renowned intellectual property decisions: Tasini v. The New York Times, Deepsouth Packing Co. v. Laitram Corp., and Diamond v. Chakrabarty.
Contact: Joseph M Potenza
Tel: 202 824 3000
Contact: Christopher J Renk
Tel: 312 463 5000

Patent Post-Issuance Proceedings:
Banner & Witcoff has increased its involvement in America Invents Act post-issuance review activity, including inter partes reviews and post grant reviews. The firm opened five inter partes reviews in 2014. When the AIA was drafted, Joseph M. Potenza, a principal shareholder in the firm’s Washington, D.C., office, was chairman of the American Bar Association Intellectual Property Law Section. He and other members of the firm were involved in recommending rule changes related to post-issuance review in the law. Since the AIA took effect, the firm has set precedent in two cases involving inter partes reviews for client Mentor Graphics. The firm also continues to achieve success in inter partes reexaminations.
Contact: Christopher L McKee
Tel: 202 824 3000
Contact: J Pieter van Es
Tel: 312 463 5000

Banner & Witcoff ’s prosecution teams manage large patent portfolios ranging from several hundred to several thousand patents and patent applications and typically including substantial numbers of foreign patents and applications. Many of the firm’s patent prosecutors are former USPTO examiners.
Contact: Gary D Fedorochko
Tel: 202 824 3000
Contact: Charles L Miller
Tel: 312 463 5000

Design Patents:
Banner & Witcoff is widely known as the leader in design patent procurement and design patent procurement strategies. In 2014, Banner & Witcoff procured more design patents than any other firm for the 12th consecutive year. In 2014, Banner & Witcoff procured 790 US design patents on behalf of its clients, bringing the total number of design patents procured by the firm in the last 20 years to more than 8,600.
Contact: Robert S Katz
Tel: 202 824 3000
Contact: Richard S Stockton
Tel: 312 463 5000

Trademark attorneys at Banner & Witcoff have extensive experience with evaluating trademark use and registrability issues, and obtaining trademark registrations efficiently and effectively for US and international clients. Banner & Witcoff attorneys devise overarching brand- and product-oriented trademark strategies, both offensive and defensive for the firm’s clients, as well as licensing and assigning trademarks to and from their clients. The firm manages and maintains large and complex trademark portfolios for global corporations, and enforces and defends against trademark infringement allegations both domestically and internationally, including through oppositions, cancellations, court litigation and customs procedures.
Contact: Helen Hill Minsker
Tel: 312 463 5000

Areas of Practice

  • Copyrights
  • Design Patents
  • Jury Trials
  • Litigation
  • Patent Post-Issuance Proceedings
  • Patent Prosecution
  • Trademarks
  • Trade Secrets


  • 1100 13th Street, NW,
  • Suite 1200,
  • Washington, DC,
  • District of Columbia
  • USA
  • 20005-4051
  • Tel +1 202 824 3000
  • Fax +1 202 824 3001
  • Website : www.bannerwitcoff.com
  • Ten South Wacker Drive,
  • Suite 3000,
  • Chicago,
  • Illinois
  • USA
  • IL 60606-7407
  • Tel +1 312 463 5000
  • Fax +1 312 463 5001
  • Email : info@bannerwitcoff.com
  • 28 State Street,
  • Suite 1800,
  • Boston,
  • Massachusetts
  • USA
  • MA 02109
  • Tel +1 617 720 9600
  • Fax +1 617 720 9601
  • 121 SW Salmon Street,
  • Suite 1100,
  • Portland,
  • Oregon
  • USA
  • OR 97204
  • Tel +1 503 425 6800
  • Fax +1 503 425 6801
  • Email : info@bannerwitcoff.com