Guy W. Chambers, a patent lawyer in the firm's San Francisco office, focuses on patent litigation and intellectual property disputes. As a Bay Area patent litigator, Mr. Chambers uses a broad range of IP skills in cutting edge technologies to provide a comprehensive answer to the complicated intellectual property needs of clients in San Francisco, throughout California and beyond.

Mr. Chambers' practice includes litigation of patent disputes in court, biotechnology interferences, technology licensing and patent prosecution. He has been lead counsel in more than 40 intellectual property lawsuits and Patent Office interferences, including actions in U.S. District Courts, the U.S. International Trade Commission and the U.S. Court of Appeals for the Federal Circuit. These lawsuits and interferences have involved a broad range of technologies, including biotechnology, chemicals, pharmaceuticals, telecommunications, computers, software, electronics and mechanical.

Mr. Chambers? clients have prevailed in eight of his nine trials and nearly all of his Patent Office interferences. Mr. Chambers has also successfully prepared and prosecuted patents in the fields of medical devices, mechanical devices, telecommunications, electronics and biotechnology.

For 15 years, Mr. Chambers was the project manager on a patent services contract with the National Institutes of Health and was formerly a Trial Attorney in the Honors Program at the United States Department of Justice. In 2012 and 2013, Mr. Chambers was selected for inclusion in Northern California Super Lawyers in the field of Intellectual Property Litigation.

Representative Matters

• In the Matter of Certain Rubber Antidegradants I (ITC; Flexsys v. Sinorgchem and Korea Kumho Petrochemical Co.). As lead counsel for Kumho, obtained dismissal after trial of ITC investigation involving tire antidegradant patents.
• In the Matter of Certain Rubber Antidegradants II (ITC; Flexsys v. Sinorgchem and Korea Kumho Petrochemical Co.). As lead counsel, successfully obtained summary determination for Kumho in follow-on ITC tire antidegradant patent dispute.
• Flexsys Americas LP v. Korea Kumho Petrochemical Co., Ltd., Kumho Tire Co., Inc., Kumho Tire USA, Inc. and Sinorgchem Co., Shandong (N.D. Ohio). As lead counsel for Kumho defendants, obtained summary judgment determination of non-infringement regarding tire antidegradant patents.
• Luciw v. Chang interference (USPTO). As lead interference counsel, obtained judgment of priority for the National Institutes of Health (NIH) in a patent interference against Novartis/Chiron involving first-generation recombinant HIV hybridization assays developed by the Gallo laboratory.
• Telemac Corp. v. US/Intelicom, Inc. (N.D. Cal.; 185 F.Supp.2d 1084). As lead counsel, obtained a $7.4 million patent infringement judgment after trial in a case involving handset-based, prepaid wireless technology.
• Telemac Corp. v. Teledigital, Inc. (N.D. Cal.). As lead counsel, successfully represented Telemac in a patent infringement action involving handset-based, prepaid wireless technology.
• Telemac Corp. v. Phonetec LP (N.D. Cal.). As lead counsel, represented Telemac in a patent infringement action involving handset-based, prepaid wireless technology.
• Telemac Cellular Corp. v. Topp Telecom, Inc. (N.D. Cal. and U.S. Court of Appeals for the Federal Circuit; 247 F.2d 1316). As lead counsel, represented Telemac in a patent infringement action involving handset-based, prepaid wireless technology.
• In the Matter of Certain Silicon Microphone Packages and Products Containing the Same (ITC; Knowles Electronics, Inc. v. MEMS Technology Berhad). As lead counsel, represented Memstech in a patent dispute involving packaging for silicon microphones.
• University of California v. Alza interference (USPTO). As lead interference counsel, obtained judgment of priority for the University of California in interference against Alza involving targeted therapeutic liposomes.
• Goodchild v. Cohen interference (USPTO). As lead interference counsel, obtained judgment of priority for the NIH in interference against Hybridon involving phosphorothioate modified antisense compounds.
• In re Certain Display Controllers (ITC and N.D. Cal.). As lead counsel, obtained a settlement that the client found favorable for respondent SmartASIC, Inc. in patent infringement action against Genesis Microchip, Inc. after purchasing key prior art patent and threatening a countersuit.
• Power Saving Integrated Circuits and Products Containing Same (ITC). Represented respondent ICS (Integrated Circuit Systems) in patent action against Cypress Semiconductor involving power-down circuits.
• SGS Thomson Microelectronics v. Hyundai Electronics, Inc. (ITC and N.D. Tex.). Represented accused infringer in patent infringement action involving eight DRAM and SRAM patents.
• NEC v. Hyundai Electronics, Inc. (E.D. Va.). Represented accused infringer in patent action involving more than twenty DRAM and SRAM patents.
• Texas Instruments v. Hyundai Electronics, Inc. (N.D. Tex.). Represented accused infringer in patent action involving computer protocol and DRAM patents.
• Alizon v. Chang interference (USPTO). Lead interference counsel for the NIH in recombinant HIV interference against Institut Pasteur.
• Pastan v. Murphy interference (USPTO). As lead interference counsel, helped settle interference for the NIH against Seragen involving hybrid pseudomonas exotoxin molecules.
• Haseltine v. Wong-Staal interference (USPTO). As lead interference counsel, helped settle interference for the NIH against Dana Farber Cancer Institute involving isolation of the tat gene from the HIV virus.
• Leonard v. Cosman interference (USPTO). As lead interference counsel, obtained judgment of priority for the NIH in interleukin-2 receptor interference against Immunex.
• Kloss v. Filiberti interference (USPTO). As lead interference counsel, helped settle interference for Spintek Gaming Technologies, Inc. against Bally Gaming involving coin-weighing slot-machine hopper technology.
• Elsener v. Shin interference (USPTO). As lead interference counsel, helped settle interference for Tecan Trading Co., AG against Applera Corporation involving thermocycler technology.
• StarSight, Inc. v. United Video, Inc. (D.Okla). Represented StarSight, Inc. in patent trial involving automated television programming guide.
• PharmaStem v. StemCyte (D.Del). As lead counsel, helped settle patent dispute involving preservation of fetal umbilical cord tissue.
• Nike v. Wal-Mart and HYI (E.D. Va.). Represented Wal-Mart and HYI at trial in patent dispute involving athletic shoe designs.
• Reebok v. HYI (C.D. Cal). As lead counsel, helped settle patent dispute involving athletic shoe designs.
• Chromavision Medical Systems, Inc. (Clarient, Inc.) v. Applied Imaging Corp. (S.D. Cal.). As lead counsel, helped settle patent dispute involving automated technology for detecting cancer cells in tissue samples.
• Epicenter, Inc. v. Aten Technology, Inc., Kontron America, Inc., Rose Electronics, Austin Hughes Solutions, Inc. (C.D. Cal.). Lead counsel for Austin Hughes in KVM (keyboard-video-mouse) switch patent dispute.
• Brookstone Co., Inc. v. Restoration Hardware, Inc. (N.D. Cal.). As lead counsel, helped settle patent dispute involving a fan design.
• Octalinear v. Cyberdyne (C.D. Cal.). As lead counsel, helped settle software patent dispute.
• Orsetti Seed Co., Inc. v. Halley Vick and Applied Genetics (Cal. Sup. Ct.). As lead counsel, obtained consent judgment against defendants in tomato breeding trade secret action.
• Exoxemis v. Advanced Polymer Systems, Inc. (E.D. Ark.). As lead counsel, represented defendant in a trademark infringement action involving the "EXACT" trademark.
• In re Thomas M. and Anna Valentine (N.D. Cal.). As lead counsel, represented Orsetti Seed Company in bankruptcy proceedings involving lettuce breeder.
• Genprobe v. Microprobe (N.D. Cal.). Represented Microprobe in patent infringement action involving two ribosomal RNA hybridization assay patents.
• Chase/Durus Industries v. Frommelt Industries (D.Iowa; 806 F.Supp. 1381). As lead counsel, obtained contempt judgment after trial for violation of injunction relating to a rotationally molded door patent.
• Hewlett-Packard Co. v. Supreme Office Products (C.D. Cal.). As lead counsel, obtained temporary restraining order, preliminary injunction and consent decree in trademark counterfeiting action involving toner cartridges.
• Hewlett-Packard Co. v. Rapid Office Products (M.D. Fla.). As lead counsel, obtained preliminary injunction, seizure order and consent decree in trademark counterfeiting action involving toner cartridges.
• Miles, Inc. v. Green Cross Corp. (N.D. Cal.). Represented Miles in action involving two immune serum globulin patents.
• Chain Reactions Inc. v. OMNI Technology, Inc. (E.D. Cal.). As lead counsel, represented plaintiff in a breach of contract action involving planar loudspeaker technology.
• Video Processing Technology v. For-A Company, Ltd. (N.D. Cal. and D.Mass). Represented plaintiff in action involving six video processing patents.
• Iris Medical Instruments v. International Remote Imaging Systems, Inc. (N.D. Cal.). As lead counsel, represented defendant in a trademark infringement action involving the "IRIS" trademark.
• Bush Industries v. O'Sullivan Industries (D.Del.; 772 F.Supp. 1442). As lead counsel, obtained summary judgment invalidating six patents for ready-to-assemble furniture designs.
• Baer v. Bio-Rad Laboratories, Inc. (D.Mass.). As lead counsel, settled patent infringement action involving scanning laser microscopes.
• Applied Materials v. Gemini (N.D. Cal.). Represented defendant in a patent infringement action involving four epitaxial reactor patents.
• Solitec, Inc. v. Gerike and Zaferes (Cal.Sup.Ct.). Represented plaintiff in a breach of contract action involving semiconductor fabrication equipment.
• Marsh-McBirney v. Montedoro-Whitney (C.D. Cal.). Represented accused infringer in patent infringement action involving fluid flowmeters.
• Soudronic v. Fael (E.D. Cal.). Represented patent owner in patent infringement action involving two can welding machine patents.
• Industri AB Thule v. Yakima Products, Inc. (N.D. Cal.). As lead counsel, successfully opposed preliminary injunction motion in patent infringement action involving roofrack designs.
• SyQuest v. MicroStorage and Omron (N.D. Cal.). Represented Japanese defendants in action involving alleged misappropriation of disk drive trade secrets.
• Gardco Manufacturing v. Herst Lighting (N.D. Cal.; 820 F.2d 1209). Represented plaintiff in declaratory judgment trial involving lighting fixture patents.
• Gould and Patlex v. NEC (N.D. Cal.). Represented patent owner in action involving three laser patents.
• Digital Equipment Corp. v. System Industries (D.Mass.). Represented accused infringer in action involving four computer architecture patents.
• Hexcel Corp. v. TRE (N.D. Cal.). Represented manufacturer of metal honeycomb aircraft materials in trade secret misappropriation and antitrust action.
• Golden Harvest Limited v. Dai Chung Video et al. (N.D. Cal.). As lead counsel, represented Chinese video retailers in defense of copyright infringement action.
• Beatty v. Safety Line, Inc. (N.D. Cal.). As lead counsel, obtained summary judgment for accused infringer in patent infringement action involving electrical connectors.
• Guangorena v. Nagy and Hansen (Cal.Sup.Ct.). Won jury verdict and $200,000 judgment after trial of trade secret misappropriation and breach of contract action involving sailboat winches.
• Port of Stockton v. Industrial Service Corp. (Cal.Sup.Ct.). Won jury verdict that the client's commercial lease had been renewed after trial of a lease renewal dispute for industrial waste processing company.
• Magee Plastics v. Weber Aircraft (C.D. Cal.). As lead counsel, successfully represented patent owner in patent infringement dispute involving molded plastic armrests.
• Spectravest v. Lerner Stores (N.D. Cal.). As lead counsel, obtained preliminary injunction in copyright infringement action involving printed sweatshirt designs.
• Transamerica Corp. v. Transamerican Motors (D.Colo.). As lead counsel, obtained settlement that the client found favorable in trademark infringement dispute.
• Casler v. United States (Court of Claims). As lead counsel, obtained non-infringement judgment for the United States after two-week trial in patent infringement action involving electrical connectors.
• Brenner & Koslow v. United States (Court of Claims). As lead counsel, successfully represented the United States in patent infringement action involving two bar coding and sorting patents.
• Corning Glass Works v. United States (Court of Claims). Represented the United States in patent infringement action involving four optical fiber patents.

Areas of Practice

• Patent Litigation
• Patent Law and Related Issues
• Life Sciences
• Chemistry
• Intellectual Property
• Telecommunications

Admissions

• California
• U.S. Patent and Trademark Office
• U.S. Court of Appeals for the Federal Circuit
• U.S. Court of Appeals for the Ninth Circuit
• U.S. District Court for the Central District of California
• U.S. District Court for the Eastern District of California
• U.S. District Court for the Northern District of California
• Supreme Court of the United States
• U.S. District Court for the Southern District of California

Education

• Columbia University School of Law, J.D., 1981
• University of California, Santa Barbara, B.S., Chemical Engineering, with highest honors, 1978

Other Experience

• Townsend and Townsend and Crew LLP
  - Partner, 1984-2010
• U.S. Department of Justice
  - Trial Attorney, Honors Program, 1981-1984
• Duane Morris LLP
  - Partner, 2010-present

Professional Activities

• American Bar Association
• Bar Association of San Francisco
• San Francisco Intellectual Property Law Association

Honors / Awards

• Listed in Northern California Super Lawyers, 2012 and 2013
• The Legal Media Group Guide to the World's Leading Patent Law Practitioners
• The Legal 500
• Marquis' Who's Who in American Law
• Bay Area Lawyer Magazine "Best Lawyers in the Bay Area" for Litigation
• AV® Preeminent™ Peer Review Rated by Martindale-Hubbell
• Best Lawyers in the Bay Area

Board Memberships

• Sandhill Scientific Inc.
  - Board of Directors

Civic and Charitable Activities

• Practising Law Institute
  - Faculty Lecturer, 2001-2010: Advanced Patient Licensing 2010, Current Developments and Best Practices
• Santa Clara Computer & High Technology Law Journal
  - Faculty Lecturer, 2009 "Shifting Strategies in Patent Law" Symposium
• Law Seminars International
  - Co-chair, 2009 "Patent Claim Construction"
• "High Technology in the Courtroom" and "Intellectual Property Litigation," Continuing Education of the Bar, 1999, Faculty Lecturer

Publications

• Quoted in "Fed. Circ. Blocks Aspex Sunglass IP Suit Against Retailer," Law360, April 19, 2013
• Co-author, "Forecasting Forthcoming 'Biosimilar' Drug Regulations," The Recorder, August 30, 2011
• Co-author, "Path for Generics Open in Biotech," The Recorder, March 5, 2012
• Co-author, "ITC Rules That Litigation Expenses May Satisfy 'Domestic Industry' Requirement for Patents," Duane Morris Alert, April 20, 2010
• "Managing Patient Rights: License or Litigate?" Multimedia and Technology Licensing Law Report, April 2000
• "Graphic Aids," San Francisco Daily Journal, March 2000
• "Rapid Disclosure," San Francisco Daily Journal, March 2000