Trademark attorney

Timothy A. Duffy

Law Office of Timothy A. Duffy, P.C.United States

Timothy A. Duffy of Law Office of Timothy A. Duffy, P.C. (United States) is listed as the attorney or agent of record on 1,894 trademark filings, as reported by the trademark offices.

Browse filingsGet this data via the API
Filings of record
1,894
Still active
1,604
Registration rate
85%
Latest filingFirst in 2013
2025
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

+35 more

Activity

Filings per year

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

Peak year · 1,388 filed
2024
2021 to 2025 · filed
1,580
First filing
2013

Filings by year: 2013: 5, 2014: 12, 2015: 6, 2016: 3, 2017: 32, 2018: 149, 2019: 84, 2020: 23, 2021: 73, 2022: 28, 2023: 64, 2024: 1388, 2025: 27.

Clients

Companies on these filings

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

32 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
MINGYUESKYregisteredUSPTOJinling Li162025-08-06
LOTRIMOPHregisteredUSPTOShenzhen Zhida Yunhai Network Technology Co., Ltd.182025-06-24
PIXEL MATregisteredUSPTOShenzhen Leqisi Technology Co., Ltd.282025-06-24
VORYSSENTregisteredUSPTOPutian Licheng District Youhuyue Trading Firm182025-06-09
LAN JIAJIAregisteredUSPTONanning Aijin E-commerce Co., Ltd122025-06-06
XIQIregisteredUSPTOXinqi Liao92025-06-05
ZLWSEregisteredUSPTOLin Zhu252025-06-02
TTCCSWregisteredUSPTOQingdao Tuchuang E-commerce Co., Ltd.32025-04-29
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_019d2874-9bc9-76ea-b99c-f231f692ab42
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "att_019d2874-9bc9-76ea-b99c-f231f692ab42",
  "object": "attorney",
  "name": "Timothy A. Duffy",
  "firm_name": "Law Office of Timothy A. Duffy, P.C.",
  "country_code": "US",
  "trademark_count": 1899
}