Trademark attorney

Haoyi Chen

United States

Haoyi Chen (United States) is listed as the attorney or agent of record on 10,137 trademark filings, as reported by the trademark offices.

Browse filings Get this data via the API

Data current as of October 28, 2026

Filings of record: 10,137
Still active: 8,484
Registration rate: 85%
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

USPTO10,126100%
WIPO11<1%

By classA mark can cover several classes

Class 21Housewares and Glass1,31713%
Class 9Computers and Scientific Devices1,19812%
Class 25Clothing1,11011%
Class 28Toys and Sporting Goods1,06010%
Class 11Environmental Control Apparatus96610%
Class 20Furniture and Articles Not Otherwise Classified7427%
Class 24Fabrics3814%
Class 14Jewelry3523%

+34 more

Activity

Filings per year

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

Peak year · 5,216 filed: 2021
2022 to 2026 · filed: 162
First filing: 2009

Clients

Companies on these filings

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

23 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
KEYVA	examining	USPTO	Keyva Control Inc.	6	2026-07-02
TPDHG	pending opposition	USPTO	Texpower Global Inc	9	2026-06-04
SIGNOBIO	examining	USPTO	Sino Biological US Inc.	1, 40	2026-04-30
XPRESSMAX	pending opposition	USPTO	Sino Biological US Inc.	1	2026-04-21
POLARISX	examining	USPTO	Sino Biological US Inc.	1, 40	2026-04-21
PROCISE	examining	USPTO	Sino Biological US Inc.	1, 40	2026-04-21
ONE CAREER	examining	USPTO	One Career Inc	41	2026-02-09
STINGER	abandoned	USPTO	Ye Xu	13	2025-12-31

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_019d2231-99f9-712f-a4c6-ae11609809a4
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"

Response

{
  "id": "att_019d2231-99f9-712f-a4c6-ae11609809a4",
  "object": "attorney",
  "name": "Haoyi Chen",
  "firm_name": null,
  "country_code": "US",
  "trademark_count": 10139
}