Trademark attorney

Weibo Zhang

Law Office of Zhang and AssociatesUnited States

Weibo Zhang of Law Office of Zhang and Associates (United States) is listed as the attorney or agent of record on 4,163 trademark filings, as reported by the trademark offices.

Browse filingsGet this data via the API
Filings of record
4,163
Still active
3,648
Registration rate
89%
Latest filingFirst in 1982
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 Glass58114%
  • Class 9Computers and Scientific Devices49112%
  • Class 28Toys and Sporting Goods46611%
  • Class 25Clothing43911%
  • Class 11Environmental Control Apparatus3498%
  • Class 20Furniture and Articles Not Otherwise Classified2967%
  • Class 10Medical Apparatus1734%
  • Class 16Paper Goods and Printed Matter1453%

+36 more

Activity

Filings per year

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

Peak year · 2,137 filed
2020
2022 to 2026 · filed
85
First filing
1982

Filings by year: 1982: 1, 2009: 1, 2010: 2, 2013: 2, 2014: 13, 2015: 15, 2016: 5, 2017: 5, 2018: 5, 2019: 53, 2020: 2137, 2021: 1833, 2022: 9, 2023: 33, 2024: 19, 2025: 23, 2026: 1.

Clients

Companies on these filings

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

27 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
MARTIZApending oppositionUSPTOShifu Tang252026-01-27
RANEINpending oppositionUSPTOJiefeng Liang112025-12-24
GEAK LABSpending oppositionUSPTOHong Kong Covs Co.，limited342025-12-07
LOLSTARexaminingUSPTOGuangzhou Xingpinhui E-commerce Co., Ltd.112025-12-01
GEEK LABSpending oppositionUSPTOHong Kong Covs Co.，limited342025-11-06
WINSUNmixedWIPOGuang Dong Winsun Personal Care Products Co., Ltd52025-11-06
B BATHUpending oppositionUSPTOJinjiang Xiangchi Trade Co.,ltd.252025-09-30
WHITESTONE REAL ESTATEabandonedUSPTOCasa Buena Home Team LLC362025-09-02
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_019d163b-9dc9-722f-9db8-28c6bf540e4c
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "att_019d163b-9dc9-722f-9db8-28c6bf540e4c",
  "object": "attorney",
  "name": "Weibo Zhang",
  "firm_name": "law office of zhang and associates",
  "country_code": "US",
  "trademark_count": 4165
}