Patrick J Concannon

Trademark attorney of record on 1,385 registered marks in USPTO records.

1,385registrations of record

10list appearances

#3best rank achieved

23states represented

Recognition

Top Trademark Attorney #7 — Massachusetts	All years · 361 registrations
Top Trademark Attorney #10 — Massachusetts	2023 · 14 registrations
Top Trademark Attorney #8 — Massachusetts	2021 · 16 registrations
Top Trademark Attorney #6 — Massachusetts	2014 · 26 registrations
Top Trademark Attorney #6 — Massachusetts	2013 · 21 registrations
Top Trademark Attorney #3 — Massachusetts	2011 · 24 registrations
Top Trademark Attorney #5 — Massachusetts	2010 · 15 registrations
Top Trademark Attorney #7 — Massachusetts	2009 · 18 registrations
Top Trademark Attorney #6 — Massachusetts	2007 · 20 registrations
Top Trademark Attorney #7 — Massachusetts	2003 · 14 registrations

Registrations by year

2026	43
2025	58
2024	60
2023	55
2022	48
2021	55
2020	71
2019	76
2018	63
2017	77
2016	74
2015	71
2014	64
2013	79
2012	47
2011	65
2010	54
2009	51
2008	49
2007	61

Where their clients are incorporated

Delaware	392 registrations
Massachusetts	361 registrations
Minnesota	38 registrations
New Hampshire	23 registrations
Vermont	22 registrations
New York	20 registrations
California	15 registrations
Rhode Island	15 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.

Display this on your site

If this is your profile, you are welcome to display the badge. It links back to this page.

Option 1 — script embed

Renders the badge and keeps it current if your ranking changes.

<script src="https://trademarktoolbox.com/api/badge/patrick-j-concannon.js" async></script>

Option 2 — plain HTML

For sites that block third-party scripts.

<a href="https://trademarktoolbox.com/guides/attorneys/profile/patrick-j-concannon/" target="_blank" rel="noopener">
  <img src="https://trademarktoolbox.com/img/badge.png" alt="Top Trademark Attorney - TrademarkToolbox"
       width="255" height="118" style="max-width:100%;height:auto;">
</a>

You are responsible for compliance with your state bar's advertising rules, which in some states govern how awards and rankings may be displayed. Our methodology is published at /guides/attorneys/methodology/ so you can point to it if your bar requires the basis of an award to be disclosed.

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