Sunstein LLP

We’re proud to share that Law360 has named Sunstein LLP’s Federal Circuit win in Ingenico Inc. v. IOENGINE LLC one of the top patent decisions from the first half of 2025! Congratulations to Kerry L. Timbers and Kevin R. Mosier, who represented Ingenico in this widely followed patent dispute.

The ruling marked a full victory for Ingenico and resolves a split among district courts on the scope of IPR estoppel — a key issue for patent litigation strategy: https://www.sunsteinlaw.com/publications/news/law360-federal-circuit-ingenico-triumph

Happy 4th of July from !

Wishing you a safe, fun-filled holiday. 🇺🇸

Photo credit: The Boston Calendar

Join Our Team!

Sunstein LLP is on the lookout for an experienced Trademark Associate (3–6 years) to join our growing team. If you're passionate about intellectual property law and thrive in a collaborative, tech-forward environment, we want to hear from you.

We're seeking someone with:
✔️ Top-tier academic credentials
✔️ Sharp analytical thinking and strong writing skills
✔️ Solid experience in trademark/copyright enforcement and TTAB matters

We offer a competitive salary, excellent benefits (hello, on-site gym + subsidized parking), and a dynamic hybrid schedule with in-office community days.

Ready to take the next step in your IP career?

Apply here: https://www.sunsteinlaw.com/about-us/careers

Questions? Reach out in confidence: [email protected]

We’re Hiring!

Sunstein LLP is seeking a talented Trademark Associate with 3–6 years of experience in trademark prosecution and litigation.

The ideal candidate brings:
✔️ Strong academic credentials
✔️ Excellent analytical and writing skills
✔️ Proven experience in trademark/copyright enforcement and TTAB proceedings

We’re looking for someone passionate about counseling clients on IP matters and advocating in IP disputes, all while enjoying a collaborative, tech-savvy work environment.

💼 Competitive salary based on experience
🎁 Excellent benefits + perks (subsidized parking, on-site gym, and more)

Apply now: https://www.sunsteinlaw.com/about-us/careers

Today on , we commemorate the historic day marking the end of slavery in the United States and reflect on the continued pursuit of racial justice and equality. We honor the strength, achievements, and enduring contributions of Black Americans, and reaffirm our commitment to building a more inclusive and respectful future.

For those in the Boston area, here’s a guide to local Juneteenth events and celebrations:
https://www.meetboston.com/events/holidays/juneteenth/

Join Sunstein partner Lisa Tittemore and a powerhouse panel of women attorneys at Making It Rain as a Woman in the Law, hosted by the Women's Bar Association of Massachusetts on Monday, June 16.

They’ll be sharing real talk on building books of business, navigating networking, and owning your success as a woman in law. Don’t miss this inspiring and practical discussion.

Register here: wbawbf.org/wba/events/making-it-rain-woman-law

Happy Month from !

We’re honoring LGBTQ+ innovators whose ideas changed the world — from Sir Francis Bacon’s foundation of the scientific method to Florence Nightingale’s pioneering work in data visualization.

Discover five trailblazing LGBTQ+ scientists who’ve shaped history: https://www.discovery.com/science/LGBT-Scientists-Who-Changed-World via Discovery

We are pleased to announce that the firm has been ranked in the 2025 edition of Chambers USA. For the third year in a row, the prestigious legal guide recognized Sunstein as being among the top firms in Massachusetts for Intellectual Property Law. Additionally, Managing Partner Kerry Timbers, and Litigation Chair Lisa Tittemore earned recognition among the state’s top IP practitioners: https://www.sunsteinlaw.com/publications/news/chambers-2025

Chambers and Partners identifies and ranks leading firms and practitioners for its annual guides based on firsthand, in-depth research and interviews with in-house counsel and third-party experts.

Congratulations, !

The U.S. Court of Appeals for the Federal Circuit has upheld a jury verdict in favor of Sunstein client, Ingenico Inc., affirming that the patent claims asserted against it are invalid based on prior art.

The decision fully vindicates Ingenico and resolves a split among district courts on the scope of inter partes review (IPR) estoppel, with significant implications for future patent litigation.

Read more about this recent and how the decision provides new perspective and clarity in an ambiguous realm of patent law: https://www.sunsteinlaw.com/publications/news/timbers-federal-circuit-win-patent-infringement-ingenico