William D. Dalsen

4.4 (32 reviews )

Boston Massachusetts United States

Intellectual Property Law Patent Law

Recognized in Ones to Watch since 2024

617-526-9600 Website

About William

William D. Dalsen is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law and Patent Law.William D., who practices law in Boston, Massachusetts, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which William D. is held by other top lawyers in the same geographic and legal practice area.

William D. Dalsen is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law and Patent Law.

William D., who practices law in Boston, Massachusetts, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which William D. is held by other top lawyers in the same geographic and legal practice area.

Practice Areas

Intellectual Property Law

Patent Law

Awards & Recognition

Contact Me

Login Required

Please login to contact this attorney

Reviews

4.4 / 5

32 Reviews

1,038 Profile Views

Nora Schinner

Feb 05, 2026

Highly recommend William D. Dalsen for anyone needing expert Intellectual Property Law help in Massachusetts

Short and sweet: William D. Dalsen is the real deal and a true professional in the field of Intellectual Property Law. If you're in Boston and need help with your legal issues, call them immediately....

Ronald Rolfson

Feb 05, 2026

Professional service and clear communication provided by William D. Dalsen in Boston

I've worked with a few lawyers in Boston over the years, but William D. Dalsen stands out for their honesty and thoroughness. They were clear about the process and kept me updated at all times. I felt...

Kristopher Mayert

Feb 05, 2026

Professional service and clear communication provided by William D. Dalsen in Boston

Anna Langosh

Feb 05, 2026

Great people who truly care at William D. Dalsen - the best legal team in Massachusetts

William D. Dalsen has been doing this since 2024, and it definitely shows in their work. They're pros through and through and I wouldn't trust anyone else with my legal matters in Massachusetts. Their...

Luz Zboncak

Feb 05, 2026

Absolutely Great! I couldn't be happier with the service from William D. Dalsen

William D. Dalsen is fantastic and very professional. Don't hesitate to hire them if you're in Massachusetts and need help. They really know their stuff and will go the extra mile to make sure you're...