James F. Valentine (partner) represents corporate clients and universities in intellectual property litigation, including patent infringement actions and trade secret misappropriation actions. Jim has practiced before the federal district courts, the Court of Appeals for the Federal Circuit, the International Trade Commission, the California Superior Courts, and the California Courts of Appeal. He has worked in a broad range of technologies, including magnetic resonance imaging, microprocessors, semiconductor memories, chipsets, semiconductor fabrication processes, relational database software, data storage and wireless communications. Jim’s technical background is in electrical engineering and computer science. For four years prior to law school, he worked as an electrical engineer for Hughes Aircraft Company Space and Communications Group.


Daniel T. Shvodian (partner) represents clients in both state and federal court and before the Court of Appeals for the Federal Circuit in matters concerning patent infringement, copyright violations, unfair competition, breach of contract and trade secret misappropriation. He has utilized his engineering experience while representing clients in matters involving electrical and computer technology, and has also represented clients in numerous matters involving biotechnical and biomedical technology. Dan also has represented clients in matters pending before the US International Trade Commission (ITC) under Section 337. Before entering the legal practice, Dan worked for seven years for the Army Research Laboratory in Adelphi, Maryland, as an electrical engineer. His work there included designing the digital portion of a spread spectrum communication system; writing software for communication, data processing and control applications; designing digital data processing boards; integrating navigational systems with an in-flight computer; performing diagnostic analyses and repairs; and creating 3-D computer models for simulation analyses.


Christopher L. Kelley (partner) has tried patent cases in U.S. District Court and before the U.S. International Trade Commission. Chris has worked on cases involving 3G and 4G wireless communications, networking equipment, semiconductor fabrication, computer system architectures, encryption, and other technologies.  Prior to becoming an attorney, he worked as an electrical engineer, and has experience using verilog and VHDL to design ASICs and writing C code.  Chris is admitted to practice before the Patent and Trademark Office.  Prior to becoming an attorney, Chris worked on radar systems and digital signal processing at Raytheon, and on satellite systems at a company that was later acquired by Alcatel-Lucent.


Victoria Q. Smith (partner) is experienced in litigating patent and other intellectual property rights in the telecommunications, biotech, electronics and software fields, including technology related to cellular devices, data encryption and compression, pharmaceuticals, email, mapping and enterprise software, and graphics software and chips. Victoria has experience in various aspects of patent infringement cases, including e-discovery, invalidity and non-infringement defenses, fact and expert witness depositions, Markman, summary judgment, and trial. Victoria has practiced before the federal district courts, including the Northern and Southern Districts of California, the Eastern and Western Districts of Texas, and the District of Delaware, as well as the International Trade Commission. She also has experience with appeals to the Federal Circuit, and ex parte reexaminations and inter partes reviews for the U.S. Patent Office.  In a previous life, Victoria was a programmer at an architectural firm and wrote custom software for building industrial structures and retail spaces.


Wing H. Liang (counsel) focuses on patent litigation, specializing in the fields of electrical engineering, computer hardware and software, and mechanical engineering. He has managed offensive and defensive complex patent litigation cases and has experience litigating all aspects of patent disputes, from pre-suit investigation to trial and appeal. Wing has also challenged and defended patents in inter partes review proceedings before the United States Patent Trial and Appeals Board.  Wing’s additional areas of experience include pharmaceutical litigation and trademark and trade dress litigation. He has also prosecuted patents relating to computer software, computer hardware, business methods and mechanical devices before the United States Patent and Trademark Office.  Outside of his legal practice, Wing has developed and deployed several full-stack web applications in the Python, Javascript and iOS (Swift and Objective-C) programming languages.


Nancy Cheng (counsel) focuses on patent litigation and patent portfolio analysis in various fields including semiconductor fabrication, network security, memory, graphics, and WiFi.  She has practiced in various federal districts including the Northern District of California, District of Delaware, and the Eastern District of Texas, as well as the US International Trade Commission.  Nancy has also appeared before the Federal Circuit, and the Patent and Trademark Appeals Board to represent clients in inter partes reviews.  She also has experience with litigation in the Beijing IP Court and the Beijing High Court.  Prior to joining Perkins Coie, Nancy worked for Intel Corporation for more than 13 years in various areas such as microprocessor design, network processor validation, and digital home group validation.


Sarah E. Stahnke (associate) has over ten years of experience working on complex patent and trade secret matters, both in district court and in the U.S. Patent and Trademark Office. She has particular depth in litigating cases involving network security, chemical manufacturing, silicon crystal growth, video game technology and streaming media.  Sarah has significant trial experience, including a seven-week jury trial in the Eastern District of Virginia on behalf of an international chemical manufacturer. She also has a track record of securing early victories for her clients. In one recent patent case in the Northern District of California, she prevailed at summary judgment and won a complete award of attorneys’ fees under Section 285, totaling over a million dollars.  Sarah holds a B.S. in Electrical Engineering and Computer Science from University of California, Berkeley, where she was a Chancellor’s Scholar and a member of Eta Kappa Nu, the national electrical engineering honors society. As a former patent agent, she understands the nuances of practice before the PTO. In addition to litigating intellectual property disputes for high-tech clients, she also litigates shareholder disputes, contract disputes and class action matters, and advises clients on patent acquisitions.


Crystal R. Canterbury (associate) is an experienced intellectual property litigator who has represented branded and generic pharmaceutical products, medical devices and software by means of district court litigation, preliminary injunction (PI) and temporary restraining order (TRO) proceedings, Section 337 (ITC) actions, and inter partes reviews before the U.S. Patent Trial and Appeal Board (PTAB).  Crystal focuses on Hatch-Waxman/ANDA litigation and related IPRs, where she has represented the interests of more than a dozen pharmaceuticals and secured a client’s launch of a generic product worth $5.2 billion in yearly branded sales. Representative pharmaceuticals include the generic versions of Nexium® 20 and 40 mg (oral proton pump inhibitors), Precedex® (sedative infusion), Revlimid® (oral cancer treatment), Fulvestrant® (injectable breast cancer treatment), and Copaxone® 40 mg (injectable multiple sclerosis treatment). Crystal is also experienced in regulatory litigation related to determinations made by the FDA, has been involved with eleven inter partes reviews and recently represented an IPR petitioner contesting the propriety of Native American sovereign immunity in IPR proceedings before the PTAB.


Andrew N. Klein (associate) litigates complex intellectual property disputes across the country, focusing on patent litigation. Andrew represents FORTUNE 500 and emerging companies in all phases of litigation, from initial case assessment to settlement. His practice also includes appeals, in the Federal Circuit for patent cases and elsewhere.  Andrew is experienced in all stages of litigation, including drafting and arguing successful motions, managing complex discovery, taking and defending depositions of party, third-party, and expert witnesses, and drafting pretrial exchanges, submissions, briefs, and motions. At trial, Andrew has been responsible for effective trial presentation by working closely with expert and party witnesses and collaborating with graphics vendors.  Andrew’s patent litigation experience covers a wide range of technologies, including acoustics, software, color management, surveillance technology, and telecommunications.


Amisha K. Manek (associate) has experience litigating in district courts and before the Patent Trial and Appeal Board (PTAB). Her strengths are finding relevant prior art and preparing invalidity defenses for defendants in patent litigation matters. She regularly drafts briefs, including successful motions to dismiss and petitions for inter partes review, assesses patent portfolios, and reviews competitor products to identify potential infringement. Amisha also has an eye for formulating noninfringement arguments and crafting technical tutorials for Markman hearings.  In addition, Amisha advises technology companies on regulatory matters before the Federal Communications Commission (FCC) and state regulatory agencies. She has prepared first drafts of comments and ex part filings for submission at the FCC. Recently, Amisha was part of a team that oversaw the FCC regulatory and litigation aspects of a high-profile telecommunications merger. Amisha also has experience counseling clients on web accessibility issues, including compliance with the 21st Century Communications and Video Accessibility Act and the Americans with Disabilities Act.


Adam G. Hester (associate) maintains a patent litigation practice on a variety of technology areas, including digital rights management, telecommunications, digital imaging, and gaming. Adam drafts procedural and discovery motions, prepares invalidity contentions, and manages discovery. His experience also includes conducting prior art studies to assess the strength of a client’s patent portfolio, and advising on defensive patent acquisitions. Working on behalf of global and mid-sized tech clients, Adam has been a valuable member of infringement defense teams in district courts, and he has represented both petitioners and patent owners in PTAB proceedings.  In addition to his patent litigation practice, Adam has participated in standard essential patent litigation, and has co-authored articles on the Federal Trade Commission’s authority and conduct in regulating competition.  Adam applies his IP knowledge in his pro bono commitments, which include drafting patent applications for indigent business entrepreneurs and advising on copyright protections for nonprofit organizations.