California - Jurisdiction Review

Bunsow De Mory

Firm overview

Bunsow De Mory is a nationally recognized litigation boutique that specializes in maximizing the value of IP through strategic litigation. The firm is based in Northern California and has seasoned litigators around the country, including in Texas and Washington, DC.

The firm represents IP owners in federal district courts, federal appellate courts, the ITC, and before the U.S. Patent Trial and Appeal Board against the largest companies and law firms in the world and consistently achieves best in class results for its clients.

The firm works on matters across a range of technologies and industries, including mobile communications, consumer electronics, semiconductors, the “internet of things,” automotive, telecommunications, artificial intelligence, fintech, and life sciences.

Bunsow De Mory attorneys are strategic, technically proficient, and trial tested, with decades of experience and success litigating patent cases in venues throughout the country. And even as the landscape for patent owners has become more difficult in recent years, the firm wins. In the last several years, current firm partners secured more than $400M in verdicts and settlements.

The firm’s strength is its well-tested ability to formulate strategies that drive results. Bunsow De Mory knows how to maximize its client’s chances of pretrial and trial successes through effective storytelling and strategic planning, which starts before they file a case or immediately upon being retained to work on a case.

Legal experts have recognized the firm’s excellence. In 2025, firm attorneys landed on “best of” lists issued by the following ranking organizations: Chambers USA for patent litigation; Managing IP as a Global Top 250 Woman in IP; IAM 300 as a Top Patent Strategist; Managing IP as a Top Tier Firm and IPSTARS; Benchmark Litigation as a Litigation Star; Law Dragon as a Top 500 Litigator in America and a Top 500 Global IP Attorney; The Daily Journal as a Top IP Lawyer; and Patexia as Top 100 and Top 250 Best Performing and Active lawyers at the PTAB.

Husch Blackwell

Firm overview

Husch Blackwell helps clients develop and preserve their intellectual property to maximize profits and secure a competitive edge. Our team has more than 100 intellectual property attorneys with tremendous experience in IP acquisition, maintenance, protection, enforcement, litigation, and commercialization. We partner with universities, research facilities, companies of all sizes, and individuals to turn their innovations into industry.

Our IP attorneys understand complex technologies, and they have prepared and prosecuted thousands of patents and trademarks across a wide range of industries. To accommodate clients’ need for global enforcement and protection, our team has assembled an international network of more than 300 associate firms in 120 countries. A Husch Blackwell attorney has worked directly and personally with every law firm in the network.

Finnegan Henderson Farabow Garrett & Dunner

Firm overview

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP is one of the world’s largest full-service IP firms. With offices in the United States, Asia and Europe, the firm practices European, German, UK, and U.S. IP law. In addition to services related to all aspects of patent, trademark, and copyright law, including counseling, prosecution, licensing, and litigation, Finnegan provides counseling and litigation services in advertising, privacy, and a wide spectrum of additional IP-adjacent commercial matters, including trade secrets, international trade, the Internet, e-commerce, government contracts, antitrust, and unfair competition. A comprehensive approach to clients’ IP needs and Finnegan’s mega-boutique size underpins its year-to-year, decade-to-decade preeminence in IP litigation across all industries and tribunals.

Finnegan offers full-service IP legal and technical experience in virtually every industry and technology: biotechnology, pharmaceuticals, biologics and biosimilars, combination products, chemicals, electronics, semiconductors, computers and software, FinTech, blockchain, Internet of Things (IoT), automotive, aerospace and aviation, industrial manufacturing, consumer products, food and beverage, outdoor recreation, sports and fitness, digital health, medical devices, clean energy and renewables, robotics, textiles, artificial intelligence (AI) and machine learning (ML), and 3D printing.

With Finnegan’s practice centered on intellectual property, the firm is able to create economies of scale and focus all resources on providing the best tools and teams for clients. The firm’s team is comprised of over 250 litigators, including career trial attorneys. Over 300 of Finnegan’s legal professionals hold degrees in scientific disciplines (60+ hold PhDs). Over 225 professionals are registered to practise before the US Patent and Trademark Office (USPTO), European Patent Office (EPO), the German Patent and Trade Mark Office (DPMA), the UK Intellectual Property Office (UKIPO), and the European Union Intellectual Property Office (EUIPO). With more than 55 years’ IP experience, Finnegan handles hundreds of cases and proceedings across IP-related venues, including district courts, the US International Trade Commission (ITC), the USPTO’s Patent Trial and Appeal Board (PTAB), US Court of Appeals for the Federal Circuit and the US Supreme Court. As one of the first firms to file a petition and subsequently argue a post-grant review of a covered business method case following the implementation of the America Invents Act, Finnegan is one of the busiest law firms representing petitioners and patent owners in post-grant review proceedings. The firm files approximately 2,500 US and 1,000 foreign patent applications annually.

Surveys conducted by legal and business publications consistently rank Finnegan as one of the leading IP law practices in the world. The firm is ranked in the United States for contentious and prosecution patent and trademark work by publications including Managing Intellectual Property and The Legal 500, which have ranked Finnegan as a top-tier firm in nearly every significant IP category for over 10 years. The publications cite the firm’s winning record, technical expertise and deep bench of talent in all aspects of IP litigation, including trials, appeals and proceedings at the USPTO and ITC investigations.

Representative engagements:

Represented Maglula Ltd. in a one-of-a-kind district court litigation including patent, trademark, and copyright claims over Maglula’s assertions that Amazon sold counterfeit consumer products. After the court issued an order denying Amazon’s motion for summary judgment, the parties entered into an agreement and the case was dismissed.
Achieved a complete win for AstraZeneca in a Hatch-Waxman litigation involving patents protecting FARXIGA®, one of AstraZeneca’s billion-dollar-a-year drugs used for the treatment of diabetes.
Achieved a clean sweep victory for client Playtika, invalidating all five of its adversary’s gaming patents in district court litigation. The victory included challenging the asserted patents in IPR proceedings before the PTAB.
Represented BMW of North America, LLC and Bayerische Motoren Werke AG (collectively, “BMW”) before the ITC, which, in a final determination, terminated an investigation brought on by a semiconductor patent holder attempting to ban the importation and sale of several hybrid and electric BMW vehicles into the United States.
Handles high volume U.S. patent and trademark prosecution, global IP portfolio development and management, brand protection, and counseling to protect e-commerce giant Coupang’s global IP interests.

Haley Guiliano

Firm overview

Haley Guiliano started as the patent practice spin-off from Ropes & Gray LLP. The Haley Guiliano team has extensive experience with representing clients of all sizes and across a multitude of industries around the globe in connection with intellectual property matters. All of our attorneys and patent agents have technical and scientific backgrounds, many of whom have graduate degrees. We are used to counseling and representing clients on high stakes complex matters – relying on both our legal analysis expertise and technological know-how.

We tailor our relationship for every one of our clients, recognizing that a cookie-cutter approach to IP representations is not adequate. We make it a point to understand our client’s business, its needs, and its goals. This underpins the work that we perform in the course of our representation.

Haley Guiliano is selective in hiring talented candidates with exceptional legal and technical/scientific backgrounds. We invest in our legal team and support staff. This includes providing each person with opportunities to work on a wide scope of projects in addition to specializing in a respective practice area. Haley Guiliano has developed an environment that fosters professional development and collegiality.

As a client, this means your matters will be handled by a team of Haley Guiliano professionals with a broad range of experience, who are able to learn about your business and your needs. This institutional knowledge will be a continuous mainstay during the course of our representation.

IP STARS Reviews

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