Sean Ploen

Trademark attorney of record on 1,109 registered marks in USPTO records.

Top Trademark Attorney
1,109registrations of record
6list appearances
#2best rank achieved
25states represented

Recognition

Top Trademark Attorney #7 — Minnesota 2021 · 24 registrations
Top Trademark Attorney #3 — New Mexico 2020 · 10 registrations
Top Trademark Attorney #5 — Minnesota 2017 · 30 registrations
Top Trademark Attorney #5 — Mississippi 2017 · 10 registrations
Top Trademark Attorney #10 — Massachusetts 2013 · 17 registrations
Top Trademark Attorney #2 — Massachusetts 2011 · 25 registrations

Registrations by year

202635
202557
202461
202352
202260
202181
202072
201981
201885
201785
201665
201549
201431
201349
201233
201152
201020
200926
200821
200724

Where their clients are incorporated

Delaware319 registrations
Minnesota206 registrations
Massachusetts144 registrations
California53 registrations
Mississippi52 registrations
New Mexico33 registrations
Pennsylvania31 registrations
Florida30 registrations

Based on the owner address of record. Companies frequently incorporate in one state while operating in another, so this reflects client domicile rather than where the attorney practises.

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How this list is compiled

TrademarkToolbox Top Trademark Attorney lists are not a ranking of attorney quality. Rank is based solely on the number of trademark registrations that list the attorney as attorney of record, for applications tied to the jurisdictions listed above. It measures filing volume, nothing else.

Volume reflects firm size, practice model and client mix. A solo practitioner handling a small number of complex matters will rank below a high-volume filing practice, and that says nothing about the quality of either. These lists are not an endorsement, a recommendation, or a substitute for your own due diligence when choosing counsel.

Data comes from USPTO public records as indexed by TrademarkToolbox. Attorney names are matched conservatively: we do not merge similar names, so an attorney who appears in the record under more than one form may be undercounted. Counts include registered marks only, by registration year. Full methodology · Request a correction or removal