Trademark attorney

Letao Qin

Pierson Ferdinand LLPUnited States

Letao Qin of Pierson Ferdinand LLP (United States) is listed as the attorney or agent of record on 561 trademark filings, as reported by the trademark offices.

Browse filingsGet this data via the API
Filings of record
561
Still active
354
Registration rate
56%
Latest filingFirst in 2009
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 21Housewares and Glass6912%
  • Class 9Computers and Scientific Devices5911%
  • Class 5Pharmaceuticals529%
  • Class 25Clothing519%
  • Class 3Cosmetics and Cleaning Preparations509%
  • Class 28Toys and Sporting Goods478%
  • Class 16Paper Goods and Printed Matter377%
  • Class 20Furniture and Articles Not Otherwise Classified346%

+33 more

Activity

Filings per year

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

Peak year · 211 filed
2025
2022 to 2026 · filed
479
First filing
2009

Filings by year: 2009: 1, 2010: 2, 2012: 5, 2013: 3, 2014: 2, 2015: 7, 2016: 2, 2017: 14, 2018: 11, 2019: 12, 2020: 8, 2021: 15, 2022: 16, 2023: 11, 2024: 153, 2025: 211, 2026: 88.

Filings

Latest filings of record

The most recent applications naming this attorney or agent.

Browse all filings
MarkStatusOfficeOwnerClassesFiled
TERMALKexaminingUSPTOTermalk LLC102026-10-26
MOROYAexaminingUSPTOBrenda's Beauty Supply32026-10-23
TREVANEexaminingUSPTO2D Muhendislik Tekstil Sanayi Ve Ticaret Ltd Sti172026-10-19
GIBELexaminingUSPTOGibel LLC92026-10-13
AVI ALIVASAN WELLNESS INC.examiningUSPTOAlivasan Wellness Inc.52026-10-12
NORTHCROFTexaminingUSPTOAaron Gold202026-10-08
ONNI PET CO.examiningUSPTOTopnotch Commerce LLC32026-10-08
GROWN BY GODexaminingUSPTOOnyx Card Care Ltd9, 162026-10-07
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_019d1feb-7138-7410-a7a1-9a1bf9858b2d
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "att_019d1feb-7138-7410-a7a1-9a1bf9858b2d",
  "object": "attorney",
  "name": "Letao Qin",
  "firm_name": "Pierson Ferdinand LLP",
  "country_code": "US",
  "trademark_count": 561
}