Trademark attorney

Ann K. O'Brien

Ann K. O'Brien of Latham & Watkins (United States) is listed as the attorney or agent of record on 35 trademark filings, as reported by the trademark offices.

Browse filings Get this data via the API

Data current as of May 1, 2026

Filings of record: 35
Still active: 0
Registration rate: 34%
Latest filingFirst in 1986: 1996

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

USPTO35100%

By classA mark can cover several classes

Class 35Advertising and Business1234%
Class 9Computers and Scientific Devices1029%
Class 42Computer and Scientific Services926%
Class 41Education and Entertainment720%
Class 28Toys and Sporting Goods617%
Class 18Leather Goods411%
Class 21Housewares and Glass411%
Class 25Clothing411%

+12 more

Activity

Filings per year

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

Peak year · 11 filed: 1992
1992 to 1996 · filed: 28
First filing: 1986

Clients

Companies on these filings

Owners on the latest 35 filings of record that Signa links to a company record.

16 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

Mark	Status	Office	Owner	Classes	Filed
MIRRORCELL	cancelled	USPTO	Ortel Corporation	9	1996-05-28
LIFETRONIX	abandoned	USPTO	Thompson, Lawrence	35	1996-01-11
PRESIDIO PGC GOLF COURSE SAN FRANCISCO	abandoned	USPTO	Arnold Palmer Golf Managment Company	18, 25, 28, 41, 42	1995-12-18
SATELLITE ON FIBER	cancelled	USPTO	Ortel Corporation	9	1995-11-13
MICROWAVES ON FIBER	cancelled	USPTO	Ortel Corporation	9	1995-11-13
RADIO ON FIBER	cancelled	USPTO	Ortel Corporation	9	1995-11-13
NATIONAL GOLF PROPERTIES	abandoned	USPTO	National Golf Properties, Inc.	35	1995-03-27
LIFETRONIX	abandoned	USPTO	Thompson, Lawrence	3, 5, 9, 21, 28, 41	1995-01-20

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 key View docs

GET /v1/attorneys/{id}

ID=att_019d16fe-3088-745a-96ec-cfcdb1a39a42
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"

Response

{
  "id": "att_019d16fe-3088-745a-96ec-cfcdb1a39a42",
  "object": "attorney",
  "name": "Ann K. O'Brien",
  "firm_name": "LATHAM & WATKINS",
  "country_code": "US",
  "trademark_count": 35
}