Trademark attorney

R. Dennis Claessens

United States

R. Dennis Claessens (United States) is listed as the attorney or agent of record on 119 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: 119
Still active: 0
Registration rate: 58%
Latest filingFirst in 1936: 2003

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

USPTO119100%

By classA mark can cover several classes

Class 42Computer and Scientific Services3630%
Class 35Advertising and Business3529%
Class 9Computers and Scientific Devices2521%
Class 7Machines and Machine Tools76%
Class 16Paper Goods and Printed Matter65%
Class 41Education and Entertainment65%
Class 25Clothing54%
Class 32Light Beverages54%

+18 more

Activity

Filings per year

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

Peak year · 32 filed: 1995
1999 to 2003 · filed: 14
First filing: 1936

Clients

Companies on these filings

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

21 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
ROBERT W. GAIN AWARD	cancelled	USPTO	Western Fire Chiefs Association, Inc.	41	2003-12-19
PLACES	cancelled	USPTO	The Design History Foundation	16	2003-07-30
ELLA	abandoned	USPTO	Malecon Tobacco, LLC	34	2002-12-12
ELLA HAVANA	abandoned	USPTO	Malecon Tobacco, LLC	34	2001-08-02
LAINE ESTATE	abandoned	USPTO	Galleron Laine Winery, Inc	33	2001-07-19
NEUROGENE	cancelled	USPTO	Renovis, Inc.	42	2001-06-01
JADE MOUNTAIN	abandoned	USPTO	Sierra Highlands, Inc.	37	2001-03-28
JADE MOUNTAIN	abandoned	USPTO	Sierra Highlands, Inc.	41	2001-03-28

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_019d14ba-aa84-735b-8571-41e336334ca4
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"

Response

{
  "id": "att_019d14ba-aa84-735b-8571-41e336334ca4",
  "object": "attorney",
  "name": "R. Dennis Claessens",
  "firm_name": null,
  "country_code": "US",
  "trademark_count": 119
}