Brent E Ohlmann

Trademark attorney of record on 624 registered marks in USPTO records.

Your photo could be here

Upgrade this profile to add a photo, biography, website and contact details. Your photo also appears beside your name in the rankings.

Upgrade your profile
Top Trademark Attorney
624registrations of record
8list appearances
#4best rank achieved
23states represented

Recognition

Top Trademark Attorney #8 — Illinois All years · 523 registrations
Top Trademark Attorney #8 — Illinois 2017 · 28 registrations
Top Trademark Attorney #10 — Illinois 2015 · 28 registrations
Top Trademark Attorney #4 — Illinois 2011 · 29 registrations
Top Trademark Attorney #9 — Illinois 2009 · 24 registrations
Top Trademark Attorney #10 — Illinois 2008 · 27 registrations
Top Trademark Attorney #10 — Illinois 2006 · 19 registrations
Top Trademark Attorney #8 — Illinois 2005 · 18 registrations

Registrations by year

202618
202528
202431
202323
202222
202118
202021
201935
201823
201731
201623
201533
201426
201327
201226
201131
201017
200926
200830
200725

Where their clients are incorporated

Illinois523 registrations
Delaware23 registrations
Wisconsin17 registrations
Colorado6 registrations
Indiana5 registrations
Arizona4 registrations
Iowa4 registrations
North Carolina4 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.

Option 2 — plain HTML

For sites that block third-party scripts.

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