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Intellectual Property Litigation

Intellectual Property Litigation

Stratum Law delivers comprehensive intellectual property litigation services with strategic precision and unwavering dedication to protecting and enforcing our clients' rights. With more than two decades of IP litigation experience and over 200 IP infringement cases handled in federal court, our attorneys bring battle-tested expertise to every dispute.Our Litigation CapabilitiesWe represent both plaintiffs and defendants in complex IP disputes across all major venues, including federal district courts, the U.S. Court of Appeals for the Federal Circuit, the International Trade Commission (ITC), and the Patent Trial and Appeal Board (PTAB). Our practice encompasses the full spectrum of intellectual property litigation:● Patent Litigation: High-stakes patent infringement actions, validity challenges, and portfolio defense strategies● Trade Secret Misappropriation: Protection of confidential business information and proprietary technology● Trademark & Copyright Disputes: Brand protection, counterfeiting matters, and content infringement cases● Multi-Defendant Litigation: Strategic management of Schedule A cases involving numerous defendantsOur ApproachOur trial-focused methodology emphasizes early case assessment, identification of dispositive issues, and development of compelling narratives that resonate with judges and juries. We combine deep technical knowledge with sophisticated legal strategy to achieve favorable outcomes—whether through early resolution, summary judgment, trial verdict, or strategic settlement.Beyond litigation, we provide strategic IP counseling to help clients navigate complex IP landscapes, assess risk, optimize patent portfolios, and develop long-term protection strategies aligned with business objectives.Whether defending your intellectual property rights or pursuing enforcement actions against infringers, Stratum Law is committed to delivering exceptional legal representation with personalized service and measurable results. >View more

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Xiyan Zhang

Xiyan Zhang | Partnerxzhang@stratumlaw.comXiyan specializes in patent litigation, technology oriented international commercial litigation and IP transactions.  He has represented both domestic and international companies in a variety of industrial sectors including auto parts, medical equipment, and electronics. Xiyan's focus is to help companies in attaining their business goals in cross-border trade through the practice of intellectual property laws.  Over the years he has helped numerous multinational companies in protecting, acquiring and expanding their market share by asserting their IP rights and defending them against IP lawsuits.Xiyan's experience doesn't stop at litigation.  He is also experienced in IP portfolio building.  He frequently helps companies in building their IP porfolio through prosecution and acquisition of patents and trademarks.  As a by product of this practice,  Xiyan prosecuted a large number of patent and trademark applications.Xiyan is also admitted to practice as a Professional Engineer (PE).  Prior to law school, Xiyan worked as an engineer in both public and private sectors.EDUCATION· University of Minnesota Law School, J.D. cum laude                                 · Georgia Institute of Technology, B.S., Engineering ADMISSIONS  · U.S. District Court, Southern District of New York· U.S. District Court, Eastern District of New York· U.S. Patent and Trademark Office, Registration No. 68,571· New YorkREPRSENTATIVE EXPERIENCE· Cree, Inc. v. Harvatek Corporation et al, 1:14-cv-00904 (W.D. Wis.) - Patent infringement case, represented Defendants.· Harvatek Corporation v. Cree, Inc. et al, 3:14-cv-05353 (N.D. Cal.) - Patent infringement case, represented Plaintiff.· Harvatek Corporation v. Cree, Inc., 2:16-cv-00565 (C.D. Cal.) - Patent infringement case, represented Plaintiff.· Sung v. Kinik Company, et al., 1:14-cv-01026 (D. Del.) - Patent infringement case, represented Plaintiff.· Sung v. Kinik NA LLC., 2:15-cv-02310 (D. Ariz.) - Patent infringement case, represented Plaintiff.· Lightcast, Inc (Alabama) v. Lightcast, Inc (Nevada) et al, 3:14-cv-00418 (W.D.N.C.) - Trademark infringement case, represented Plaintiff.· Micro Design LLC v. Acer America Corporation et al, 1:14-cv-00835 (D. Del.) - Patent infringement case, represented Plaintiff.· Micro Design LLC v. Cray Inc., 1:14-cv-00836 (D. Del.) - Patent infringement case, represented Plaintiff.· Micro Design LLC v. Asus Computer International, 1:14-cv-00837 (D. Del.) - Patent infringement case, represented Plaintiff.· Micro Design LLC v. Dell Inc., 1:14-cv-00838 (D. Del.) - Patent infringement case, represented Plaintiff.· Micro Design LLC v. Lenovo (United States) Inc., 1:14-cv-00840 (D. Del.). - Patent infringement case, represented Plaintiff.· Micro Design LLC v. NEC Corporation of America et al., 1:14-cv-00841 (D. Del.) - Patent infringement case, represented Plaintiff.· Express Mobile, Inc. v. Alibaba.com, Inc. et al., 2:15-cv-00461 (E.D. Texas) - Patent infringement case, represented Plaintiff.· Sequent Data LLC v. Asus Computer International, 11:14-cv-00855 (D. Del.) - Patent infringement case, represented Plaintiff.· Sequent Data LLC v. Buffalo Americas Inc. et al., 1:14-cv-00856 (D. Del.) - Patent infringement case, represented Plaintiff.    · Sequent Data LLC v. Memorex Products Inc. et al, 1:14-cv-00858 (D. Del.) - Patent infringement case, represented Plaintiff.    · Sequent Data LLC v. Panasonic Corporation of North America et al, 1:14-cv-00859 (D. Del.) - Patent infringement case, represented Plaintiff.· Sequent Data LLC v. Pioneer Electronics (USA) Inc., et al., 1:14-cv-00860 (D. Del.) - Patent infringement case, represented Plaintiff.· Sequent Data LLC v. Plextor LLC, et al., 1:14-cv-00861 (D. Del.) - Patent infringement case, represented Plaintiff.· Sequent Data LLC v. Sony Optiarc America Inc., et al., 1:14-cv-00862 (D. Del.) - Patent infringement case, represented Plaintiff.· Sequent Data LLC v. Toshiba Samsung Storage Technology Korea Corporation, et al., 1:14-cv-00863 (D. Del.) - Patent infringement case, represented Plaintiff.· Sequent Data LLC v. Verbatim Americas LLC, et al., 1:14-cv-00864 (D. Del.) - Patent infringement case, represented Plaintiff.    · Rydex Technologies LLC v. B. Braun Medical Inc., 1:13-cv-00663 (D. Del.) - Patent infringement case, represented Plaintiff.    · Rydex Technologies LLC v. Baxter International Inc., 1:13-cv-00664 (D. Del.) - Patent infringement case, represented Plaintiff.    · Rydex Technologies LLC v. CareFusion Corporation, 1:13-cv-00665 (D. Del.) - Patent infringement case, represented Plaintiff.    · Rydex Technologies LLC v. Haemonetics Corporation, 1:13-cv-00667 (D. Del.) - Patent infringement case, represented Plaintiff.· Rydex Technologies LLC v. Hospira Inc., 1:13-cv-00668 (D. Del.) - Patent infringement case, represented Plaintiff.· Exergen Corporation v. Thermomedics, Inc. et al, 1:13-cv-11243 (D. Mass.) - Patent infringement case, represented Defendants.· WhatsApp Inc. v. Intercarrier Communications, LLC, 5:13-CV-4272 (D. Del.) - Patent infringement case, represented Plaintiff.· Innovelis, Inc. v. Zeikos Inc. et al, 1:13-cv-05650 (S.D.N.Y.) - Patent infringement case, represented Plaintiff.· Erickson v. Minya International et al., 1:14-cv-00274 (S.D.N.Y.) - Copyright infringement case, represented Defendants.· Moroccanoil, Inc. et al v. Jones et al, 1:12-cv-07489 (S.D.N.Y.) - Trademark infringement case, represented Defendants.

Pete Wolfgram

Pete Wolfgram | Partnerpwolfgram@stratumlaw.comPete practice is focused on patent litigation and technology oriented international commercial litigation.  He focuses on all areas of patent and trademark law, with the goal of providing valuable intellectual property protection strategically aligned with each client’s business objectives.Pete manages patent and trademark portfolios for a number of international companies.  He assists clients in optimizing their intellectual property opportunities through the use of patents and trademarks in the United States and abroad.  He has also conducted intellectual property audits to help clients mine and capture important innovations. Pete is also experienced in filing and defending lawsuits involving patent and trademark claims.  He is also pursuing a Masters degree in Computer Science with the intention of being licensed by the USPTO.   In addition to his litigation experience, Pete has worked in the energy field for a major Midwestern law firm, handling large-scale corporate transactions for some of the nation’s leading oil and gas operators.  His work primarily concerned the extensive mineral deposits in North Dakota, South Dakota, and Montana.  EDUCATION· University of Minnesota Law School, J.D. magna cum laude                                 · University of Wisconsin-Milwaukee, B.A. magna cum laudeADMISSIONS · U.S. District Court, Western District of Wisconsin· WisconsinREPRESENTATIVE EXPERIENCE· Cree v. Harvatek, 3:14-cv-00620-SLC (7th Cir.)· Exergen Corporation v. Thermomedics, Inc. et al, 1:13-cv-11243-DJC (1st Cir.)· Shenzhen Ruobilin Network Technology, Ltd v. SJG-Lens, et. al, (16-cv-386) (W.D. Wis.)· Dragon Intellectual Property, LLC v. Charter Communications, Inc., et al (C.A. No. 13-2069 (RGA))· General Access Solutions LTD. v. Sprint Corporation, et al., 2:2016-cv-00465 (5th Cir.). · Micro Design LLC v. Asus Computer International, 1:14-cv-00837 (9th Cir.)· Sung v. Kinik Company, et al, 1:14-cv-01026 (3rd Cir.)· Created a Division Order Title Opinion and Division of Interest related to a multi-million-dollar acquisition of mineral interest in Montana for a leading oil and gas producer. 

Brian Yates

Brian Yates | Partnerbyates@stratumlaw.comMr. Yates has completed a wide range of licenses for iPEL, such as a free license to a start-up company and an eight-figure license to a medium-sized Silicon Valley company. For infringing companies that refuse to respect iPEL’s patent rights, they can expect to defend their actions in court.From 2000 to 2010, Mr. Yates represented technology companies as a patent prosecutor and patent litigator. In 2011, he left legal practice to become an entrepreneur. During the seven years leading up to iPEL, Mr. Yates founded more than 40 technology companies – each one focusing on a different aspect of technology and owning valuable patent rights. While Mr. Yates did not personally invent those amazing technologies, he did partner with extremely talented companies and individuals.During the past decade, Mr. Yates has successfully licensed the patents of his wholly-owned companies to more than 1,000 companies, including nearly every technology company on the Fortune 1000. Excluding transactions where Mr. Yates served as legal counsel for a client, he has successfully completed patent transactions on behalf of his own companies totaling hundreds of millions of dollars.Mr. Yates obtained his chemistry degree from Whittier College and his JD from Loyola Law School, where he graduated with honors and received numerous awards, including the American Jurisprudence Awards for obtaining the highest grades in constitutional law, advanced legal writing, appellate advocacy, and trial advocacy.

About usAbout us

Stratum Law LLC

Since 2003, Stratum Law has been the trusted partner for innovators, inventors, and forward-thinking companies protecting their intellectual property. For over two decades, we've built our reputation on deep technical expertise, extensive IP litigation experience, and an unwavering commitment to our clients' success.Who We AreOur team combines lawyers with advanced technical degrees in electronics & IT, mechanical engineering, and life sciences & biotechnology. But we're more than credentials—we're problem-solvers who understand both the science behind innovation and the business implications of IP protection.What Sets Us ApartWith more than two decades of IP litigation experience, we've handled over 200 IP infringement cases in federal court, along with complex matters across PTAB proceedings, IP appeals, patent prosecution, and post-grant proceedings. Our technology specialists are scientists as much as they are lawyers—equally at home in a lab and a courtroom. This unique combination allows us to translate cutting-edge technical concepts into compelling legal arguments that resonate with judges, juries, and decision-makers.We believe in building talent intentionally and sharing knowledge generously across the firm. This collaborative culture means faster insights, more comprehensive strategies, and the benefit of hard-won experience from hundreds of cases for you.Our CommitmentWe know intellectual property is critical to your business—protecting it is ours. We offer:● Strategic IP litigation and defense backed by 20 years of courtroom and PTAB experience● Expert patent prosecution and portfolio management● Technical and legal insights that speak to both innovation and business strategy● Collaborative counsel that goes beyond traditional legal servicesGreat ideas deserve extraordinary protection. We're here to make sure yours are defended by lawyers who truly understand the science, the law, and what's at stake.
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