Trademark attorney

Elizabeth O'Donoghue

Armstrong Teasdale LLPUnited States

Elizabeth O'Donoghue of Armstrong Teasdale LLP (United States) is listed as the attorney or agent of record on 85 trademark filings, as reported by the trademark offices.

Browse filingsGet this data via the API
Filings of record
85
Still active
80
Registration rate
92%
Latest filingFirst in 1994
2026
Coverage

Where these filings were made

Each mark counts once here: an international registration is grouped with its country designations, not counted once per country.

By office

By classA mark can cover several classes

  • Class 7Machines and Machine Tools1720%
  • Class 35Advertising and Business1214%
  • Class 42Computer and Scientific Services1012%
  • Class 44Medical, Beauty, and Agricultural911%
  • Class 25Clothing89%
  • Class 37Building Construction and Repair78%
  • Class 20Furniture and Articles Not Otherwise Classified45%
  • Class 41Education and Entertainment45%

+14 more

Activity

Filings per year

New filings of record each year, counting each mark once.

Peak year · 22 filed
2026
2022 to 2026 · filed
37
First filing
1994

Filings by year: 1994: 1, 2003: 1, 2005: 2, 2012: 1, 2015: 14, 2016: 7, 2017: 2, 2018: 10, 2019: 7, 2020: 3, 2024: 5, 2025: 10, 2026: 22.

Clients

Companies on these filings

Owners on the latest 48 filings of record that Signa links to a company record.

14 more owners in these filings are not linked to a company record.

Filings

Latest filings of record

The most recent applications naming this attorney or agent.

Browse all filings
MarkStatusOfficeOwnerClassesFiled
PIONEER FASTLOCKexaminingUSPTOFTC Solar, Inc.6, 202026-08-13
PULSEARCHexaminingUSPTOSynvara Technologies, LLC9, 422026-07-08
ZEROVexaminingUSPTOEnvention, LLC422026-06-30
LUPULIN CARNIVALpending publicationUSPTO4 Hands Brewing Company, LLC412026-06-15
DEFENSHIELD DIAMONDexaminingUSPTOBering LLC192026-06-15
STRUCTURCOREexaminingUSPTOBering LLC192026-06-09
ACOUSTILAYERexaminingUSPTOBering LLC192026-06-09
FOLDITUREexaminingUSPTOAlexander Gendell7, 202026-06-03
API

Get this data via the API

Every number on this page comes from the Signa API. Pull the same records into your own product with one request.

  • GET/v1/attorneys/{id}

    Attorney record, firm and filing stats

  • GET/v1/attorneys/{id}/analytics

    Filings by office, class and year

  • GET/v1/attorneys/{id}/trademarks

    Every trademark the attorney is of record on

Get API keyView docs
GET /v1/attorneys/{id}
ID=att_019d1abd-4f39-70f6-86e8-2f7a952b0575
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "att_019d1abd-4f39-70f6-86e8-2f7a952b0575",
  "object": "attorney",
  "name": "Elizabeth O'Donoghue",
  "firm_name": "Armstrong Teasdale LLP",
  "country_code": "US",
  "trademark_count": 85
}