Trademark attorney

Renée L. Duff

Renée L. Duff of Lackenbach Siegel LLP (United States) is listed as the attorney or agent of record on 3 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: 3
Still active: 0
Registration rate: 67%
Latest filingFirst in 1968: 2013

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

USPTO3100%

By classA mark can cover several classes

Class 9Computers and Scientific Devices267%
Class 1Chemicals133%
Class 5Pharmaceuticals133%
Class 10Medical Apparatus133%
Class 11Environmental Control Apparatus133%
Class 12Vehicles133%
Class 16Paper Goods and Printed Matter133%
Class 17Rubber Goods133%

+10 more

Activity

Filings per year

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

Peak year · 1 filed: 1968
2009 to 2013 · filed: 2
First filing: 1968

Clients

Companies on these filings

Owners on the latest 3 filings of record that Signa links to a company record.

1 more owner in these filings is 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
ECODEAR	cancelled	USPTO	Toray Kabushiki Kaisha (Toray Industries, Inc.)	1, 5, 9, 10, 11, 12	2013-01-18
COCO PREFERENCE	abandoned	USPTO	Private Brands Consortium PBC Inc.	29, 32	2012-11-01
CANDLE	cancelled	USPTO	Broker, Jesse	9	1968-01-09

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_019d153c-a1b8-7747-98d4-84d986877722
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"

Response

{
  "id": "att_019d153c-a1b8-7747-98d4-84d986877722",
  "object": "attorney",
  "name": "Renée L. Duff",
  "firm_name": "Lackenbach Siegel LLP",
  "country_code": "US",
  "trademark_count": 3
}