David Sipiora focuses his practice on patent litigation and licensing, trademark, copyright, and trade secrets litigation and counselling. Mr. Sipiora repeatedly has been selected as one of Colorado’s top intellectual property lawyers by Chambers USA and sources describe him as “incredibly results-oriented.” He advises clients on intellectual property matters in the context of transactional, employment, licensing and pre-litigation law. Mr. Sipiora helps clients protect their businesses through strategic intellectual property portfolio management and development. He has served as lead counsel in hundreds of patent and trademark litigations in courts across the United States, including all of the major patent venues – E.D. Texas, N.D. Cal., D. Del., C.D. Cal., and S.D.N.Y.

Mr. Sipiora has litigated in many and varied areas of technology, including electronics and telecommunications, with particular experience in microprocessors, computer memory, databases, networks, wireless communications and satellite technologies. He advises trademark clients in numerous industries, including electronics, biotech, consumer products, food and beverage, building and construction, and computer software.

Mr. Sipiora has been a member of the Bar of the State of California since 1986. He served as a law clerk for two years in the U.S. District Court for the Northern District of California and gained extensive experience in the handling of patent cases. From 1991 to 1994, Mr. Sipiora served as an Assistant U.S. Attorney for the Southern District of New York and tried approximately a dozen cases. Cumulatively, Mr. Sipiora has first-chaired more than thirty trials and injunction hearings and has argued more than a dozen cases in the U.S. Courts of Appeal, the majority of which have been in the Federal Circuit. Most recently, in April 2016, Mr. Sipiora successfully argued before the U.S. Court of Appeals for the Federal Circuit in defense of a summary judgment ruling in the Northern District of California which involved a claim for damages in excess of $100 million.

Mr. Sipiora is listed in the 2017 and the six years immediately preceding editions of Chambers USA for intellectual property. He is one of only three lawyers rated by Chambers USA as "Tier One in IP" in Colorado. Mr. Sipiora has been recognized in Super Lawyers magazine as one of Colorado's "Super Lawyers" since 2008. He was recognized in The Best Lawyers in America® in 2012 for patent litigation, and again in 2018 and the five years immediately preceding for patent litigation and intellectual property law. Mr. Sipiora was named a "Denver Lawyer of the Year" in 2015 and 2018 for patent litigation, and again in 2017 for intellectual property litigation by The Best Lawyers in America®. He was recognized as a “Top Litigator" in 2016 by Law Week Colorado. Mr. Sipiora was also named the 2014 "Best Intellectual Property Litigator" and 2011 "Best Intellectual Property Lawyer" in Colorado in the Barrister’s Best Issue of Law Week Colorado. He was recognized as an "IP Star" in 2017 and the four years immediately preceding by Managing Intellectual Property magazine. Mr. Sipiora was named a top patent practitioner in 2017 and the four years immediately preceding by IAM Patent 1000 – The World’s Leading Patent Practitioners. He was named by Legal Media Group to its 2013 Guide to the World’s Leading Patent Practitioners. Mr. Sipiora was selected as "People’s Choice in 2013" by Law Week Colorado for "Best Intellectual Property Litigator" in Colorado.

Professional & Community Activities

American Intellectual Property Law Association

International Trademark Association

The Colorado Intellectual Property American Inn of Court

Institute for Life and Care, Board Member

Education

  • Harvard Law School, J.D. (1986)
    cum laude
  • Columbia University, B.A. (1982)
    summa cum laude

Bar Admissions

  • Colorado (1998)
  • District of Columbia (1990)
  • New York (1990)
  • California (1986)

Admissions

  • U.S. Court of Appeals for the Federal Circuit
  • U.S. Court of Appeals for the Second Circuit
  • U.S. Court of Appeals for the Third Circuit
  • U.S. Court of Appeals for the Fourth Circuit
  • U.S. Court of Appeals for the Fifth Circuit
  • U.S. Court of Appeals for the Ninth Circuit
  • U.S. Court of Appeals for the Tenth Circuit
  • U.S. District Court for the Northern District of New York
  • U.S. District Court for the Southern District of New York
  • U.S. District Court for the Western District of New York
  • U.S. District Court for the Northern District of Illinois
  • U.S. District Court for the District of Colorado
  • U.S. District Court for the Central District of California
  • U.S. District Court for the Northern District of California
  • U.S. District Court for the Southern District of California
  • U.S. District Court for the Eastern District of Texas

Who We Are

Suite 600, 1400 Wewatta Street
Denver, CO, 80202
USA
t +1 303.405.8525
f +1 303.593.3905

David E. Sipiora

Experience Highlights

Western Union Co. v. Moneygram International Inc.
Represented Western Union in cross-patent infringement action in the U.S. District Court for the Western District of Texas involving patents for more
Realsource Inc. v. Best Buy, et al.
Obtained summary judgment of non-infringement on behalf of defendants Starbucks, Seattle’s Best Coffee, Circuit City, Williams-Sonoma, and Pottery more
Largan Precision Co. v. Genius Electronic Optical Co.
Represent defendant manufacturer and seller of optical lenses against claims of patent infringement. Obtained summary judgment on the vast majority more
Patent infringement litigation against discount & variety retail stores
Represented Wal-Mart, Starbucks, and Sam’s Club in a patent infringement action involving patents related to gift card technology. After holding a more