Mary Margaret L. O'Donnell
Mary Margaret L. O'Donnell is a USPTO correspondent of record based in Birmingham, MICHIGAN, listed on 3,153 trademark filings (2,035 currently live). The correspondent has worked across 1,403 distinct trademark owners — a broad client roster of mostly one-off filings at roughly 2.2 marks per client. In TTAB matters, Mary Margaret L. O'Donnell is attorney of record on 119 contested oppositions and cancellations, more often as plaintiff (64) than defendant (55). The correspondent is associated with BLUE FILAMENT LAW PLLC.
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Explore the Trademark Intelligence Library
Editorial deep dives on prosecution strategy, TTAB, and brand portfolios
Refusals 101, Part 2: Section 2(d) — The Register's Biggest Fight
Section 2(d) is the most common substantive reason the USPTO refuses a trademark — and the one most likely to kill a name you've already fallen in love with. Here's what examiners actually compare.
How a Name Becomes Unownable: OSHO and the Anatomy of a Generic Trademark
Seventeen years after the TTAB ruled OSHO generic, the register tells the whole story: twenty OSHO marks ever filed, eighteen dead - and the only live OSHO word registration belongs to a Mexican beverage company.
The DEMON HUNTER Trademark That Netflix Filed Right Past
A Christian metal band sued Netflix over KPOP DEMON HUNTERS. The USPTO register shows a first DEMON HUNTER registration the band let die in 2014 — and a live one it rebuilt in 2022.