California

Firm overview

Sideman & Bancroft is one of the premier brand protection law firms in the United States. Our team includes highly experienced lawyers and former federal prosecutors, and global security and brand protection experts with extensive backgrounds leading anti-counterfeiting, anti-piracy and customs interdiction and investigation programs in both private companies and law enforcement agencies. We provide customized and scalable brand protection solutions designed to enable clients to achieve their goals for trademark protection and worldwide branding in all stages of a brand’s life cycle.

The value of trademarks, service marks and trade dress is greater than ever before. We routinely prosecute and defend infringement, dilution, unfair competition and false advertising claims involving both registered and unregistered trademarks and service marks, in addition to pursuing a wide variety of trade dress claims. Protection of a global brand means understanding risks and concerns regarding enforcement issues in the U.S. as well as in foreign jurisdictions. We obtain ex parte writs of seizure for counterfeit parts and labels in the U.S. and other countries. In collaboration with local counsel, we pursue and defend trademark and service mark claims in jurisdictions around the world.

The firm achieves tremendous results for clients by combining the traditional intellectual property and brand protection practices of counseling, prosecution and enforcement with specialty components such as:

• Criminal intellectual property enforcement
• Criminal and civil gray market investigations and enforcement
• Global investigation management
• Online anti-counterfeit monitoring
• Global customs advice and program development

In particular, the team assists clients in implementing brand protection strategies to halt the importation of counterfeit goods and prevent the sale of counterfeit products. As part of this effort, we help companies target and investigate counterfeit traffickers, and then assemble and analyze evidence to support successful criminal investigations and prosecutions as well as civil litigation resulting in asset freezes and other remedies.

Since 2001, our team has actively worked with the Federal Bureau of Investigation, Homeland Security Investigations, Secret Service and other state and federal law enforcement agencies throughout the U.S. in its representation of victim companies, resulting in dozens of criminal convictions, jail sentences and restitution orders. Relying on our team’s international law enforcement experience, we also actively coordinate investigations and law enforcement referrals in jurisdictions all over the world.

Network Memberships:

• INTA, IACC, AGMA, PCPC, ChIPs, SFIPLA, NAMWOLF:
• The firm is a certified women-owned law firm

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.

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.

Firm overview

In an era of rapid innovation, the legal landscape is shifting just as fast. You're advising on complex challenges, anticipating risks, and driving business forward. Staying ahead means having a partner who understands not just the law, but the industries redefining it.

At Davis Wright Tremaine, we offer deep industry knowledge, strategic insight, and a commitment to practical, actionable advice tailored to your needs—so you're prepared to tackle today's challenges while seizing tomorrow's opportunities.

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