Doug Ringel has successfully represented clients in their most important patent matters, as lead counsel in high-profile litigation before federal courts, in post-grant proceedings and patent prosecution before the U.S. Patent and Trademark Office, and in providing strategic advice for significant corporate decisions and deals. With experience as a Patent Examiner and two decades of holding senior intellectual property law firm positions, Mr. Ringel is uniquely suited to help clients with the full range of their patent issues. His experience includes:

  • Patent litigation in federal district courts and the U.S. Court of Appeals for the Federal Circuit;
  • Representing clients in ex parte and inter partes proceedings before the U.S. Patent and Trademark Office, including before the Patent Trial and Appeal Board;
  • Patent landscape reviews;
  • Patentability opinions;
  • Patent clearance during product design and development;
  • Freedom-to-operate opinions; and
  • Due diligence relating to intellectual property investments, licensing, purchases, mergers, and acquisitions.

Mr. Ringel has worked with large, international corporations as well as smaller and start-up companies, representing clients across a wide range of technologies. Mr. Ringel has particular experience in medical device technologies, having represented clients in areas including cardiovascular stents, heart valve repair devices, catheters, endoscopic systems, neurosurgery devices, spinal implants, intraocular implants, ophthalmic surgical systems and instruments, and diagnostic equipment. Mr. Ringel also has significant experience in other mechanical and electromechanical devices, packaging, and manufacturing.

Representative Experience

  • MAZ Encryption Technologies, LLC v. Lenovo (United States) Inc. (D. Del.): Lead counsel for Lenovo in a patent infringement case involving computer authentication and encryption technology. Briefed and argued claim construction issues. Negotiated settlement.
  • Rovi Solutions Corp. v. Lenovo (United States) Inc. (N.D. Cal.): Lead counsel for Lenovo in a patent case involving computer video copy protection techniques. Briefed and argued successful motion to dismiss indirect infringement claims, leading to settlement.
  • Data Carriers, LLC v. Lenovo (United States) Inc. (D. Del.): Lead counsel for Lenovo in a case involving computer predictive text technology. Negotiated settlement.
  • Lottotron, Inc. v. Rational Poker School Limited d/b/a PokerStars (D.N.J.): Lead counsel for PokerStars in a case involving computerized wagering games. Briefed motion for summary judgment, leading to settlement.
  • Behavioral Science Technology, Inc. v. E.I. duPont de Nemours & Co. (C.D. Cal.): Lead counsel for Behavioral Science Technology in a copyright action relating to safety consulting materials. Represented client in mediation, resulting in settlement.
  • Ventana Medical Systems, Inc. v. Vision BioSystems, Inc. (D. Mass.): Lead counsel for Vision BioSystems in a patent case involving computerized immunohistochemistry slide staining machines. Briefed summary judgment motion, leading to settlement.
  • GTECH Corp. v. Scientific Games, Inc. (D. Del.): Counsel for GTECH in a patent case involving electromechanical lottery ticket vending machines and mechanical engineering principles. Handled appellate briefing to the Federal Circuit. Case settled.
  • Medtronic Vascular, Inc. v. Boston Scientific Corp. and Medinol Ltd. (D. Del.): Counsel for Boston Scientific and Medinol in a patent case involving coronary stents in which Medtronic was seeking hundreds of millions of dollars in damages. Handled all aspects of the suit, including working on mechanical engineering analysis, drafting briefs on claim construction and validity issues, serving as lead counsel at a Markman hearing which resulted in favorable claim construction rulings, and arguing a successful, case-dispositive motion for summary judgment of noninfringement. Handled appellate briefing, leading to Federal Circuit affirmance.
  • Rose Art Industries, Inc. v. Creative Platypus Ltd. (D. Or.): Counsel for Rose Art in a case involving trade dress infringement and related claims. Handled all aspects of the case, including serving as lead counsel at a preliminary injunction hearing that resulted in a grant of a preliminary injunction against Creative Platypus. After the injunction, represented Rose Art in mediation, leading to settlement.
  • Aesculap AG & Co. v. Walter Lorenz Surgical, Inc. (N.D. Cal.): Counsel for Aesculap in a patent case involving neurosurgery fasteners. Prepared claim construction briefing and presented argument at a Markman hearing, resulting in favorable claim construction rulings. Case settled.
  • Boston Scientific Corp. and Medinol Ltd. v. Johnson & Johnson and Cordis Corp. (D. Del.): Represented Boston Scientific and Medinol in a patent case involving coronary stents, participating in all aspects of the case, including working with expert on mechanical engineering analysis, drafting briefs on claim construction and validity issues, arguing a successful motion for partial summary judgment, examining and cross-examining witnesses at a jury trial, and drafting Federal Circuit appellate briefs.
  • Advanced Cardiovascular Systems, Inc. v. SciMed Life Systems, Inc. and Boston Scientific Corp. (S.D. Ind.): Counsel for SciMed and Boston Scientific in a patent case involving coronary stents. Participated in all aspects of the case, including working with expert on mechanical engineering analysis, briefing claim construction and summary judgment issues, presenting argument at Markman and summary judgment hearings, and drafting responsive Federal Circuit appellate brief.
  • Rodime PLC v. Seagate Technology, Inc. (C.D. Cal.): Counsel for Rodime in a patent case involving computer hard disk drives with mechanical and electrical aspects. Participated in many aspects of the case, including briefing and presenting argument in a successful opposition to a motion for summary judgment and drafting Federal Circuit appellate briefs. Case settled after favorable appellate ruling.
  • AptarGroup, Inc. v. Summit Packaging Systems, Inc. (N.D. Ill.): Counsel for Summit in a patent case involving aerosol valves. Handled many case aspects, including mechanical analysis, briefing numerous issues, handling multiple hearings, examining and cross-examining witnesses in jury and bench phases of trial, arguing a motion for sanctions that resulted in preclusion of Aptar’s claim for lost profits damages, and drafting appellate briefs.

Honors & Awards

  • Board Certified in Intellectual Property Law by the Florida Bar (2007-2017)
  • Outstanding Performance Rating from the U.S. Patent and Trademark Office
  • Tau Beta Pi (engineering honor society)
  • Pi Tau Sigma (mechanical engineering honor society)

Education

University of Michigan Law School, J.D., 1992

  • cum laude
  • Order of the Coif

Cornell University, B.S. (Mechanical Engineering), 1988, with distinction

Previous Experience

  • Kacvinsky Daisak Bluni PLLC, Principal
  • Kenyon & Kenyon LLP, Partner
  • U.S. Patent and Trademark Office, Patent Examiner

Admissions

  • District of Columbia
  • Florida
  • New York
  • U.S. Patent and Trademark Office
  • U.S. District Court for the Southern District of New York
  • U.S. District Court for the Eastern District of Texas
  • U.S. Court of Appeals for the Federal Circuit

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