Matthew Warner-Blankenship

Trademark attorney of record on 499 registered marks in USPTO records.

499registrations of record

16list appearances

#1best rank achieved

15states represented

Recognition

Top Trademark Attorney #5 — Iowa	All years · 392 registrations
Top Trademark Attorney #5 — Iowa	2026 · 15 registrations
Top Trademark Attorney #9 — Iowa	2025 · 18 registrations
Top Trademark Attorney #3 — Iowa	2024 · 38 registrations
Top Trademark Attorney #4 — Iowa	2023 · 29 registrations
Top Trademark Attorney #9 — Iowa	2022 · 18 registrations
Top Trademark Attorney #6 — Iowa	2021 · 20 registrations
Top Trademark Attorney #6 — Iowa	2020 · 17 registrations
Top Trademark Attorney #6 — Iowa	2019 · 26 registrations
Top Trademark Attorney #5 — Iowa	2017 · 26 registrations
Top Trademark Attorney #3 — Iowa	2016 · 28 registrations
Top Trademark Attorney #1 — Iowa	2015 · 28 registrations
Top Trademark Attorney #8 — Iowa	2014 · 16 registrations
Top Trademark Attorney #6 — Iowa	2013 · 16 registrations
Top Trademark Attorney #10 — Iowa	2012 · 14 registrations
Top Trademark Attorney #5 — Iowa	2005 · 12 registrations

Registrations by year

2026	16
2025	23
2024	55
2023	35
2022	24
2021	27
2020	21
2019	32
2018	16
2017	33
2016	40
2015	34
2014	19
2013	21
2012	16
2011	13
2010	6
2009	10
2008	8
2007	3

Where their clients are incorporated

Iowa	392 registrations
Minnesota	12 registrations
Delaware	11 registrations
Texas	10 registrations
Nebraska	8 registrations
Colorado	6 registrations
Illinois	6 registrations
Michigan	6 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