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

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Reviews

4.4 / 5

32 Reviews

1,043 Profile Views

Chester Monahan

Feb 05, 2026

Excellent legal representation provided by William D. Dalsen for my Intellectual Property Law case

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...

Cesar Kreiger

Feb 05, 2026

William D. Dalsen did a great job handling my complex Intellectual Property Law case from start to finish

It's hard finding a reliable lawyer these days, but William D. Dalsen in Boston is definitely one of the good ones. Would use them again if needed without hesitation. They are professional, responsive...

Woodrow White

Feb 05, 2026

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

I appreciate how William D. Dalsen handled my case. No fluff, just straight to the point and very effective representation for my Intellectual Property Law matter. They are obviously very experienced...

Pete Bergnaum

Feb 05, 2026

William D. Dalsen did a great job handling my complex Intellectual Property Law case from start to finish

Ian Torphy

Feb 05, 2026

Would recommend William D. Dalsen for sure to anyone in Boston needing legal help

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...