Trademark attorney

Jiwen Chen

Joywin IP Law PLLCUnited States

Jiwen Chen of Joywin IP Law PLLC (United States) is listed as the attorney or agent of record on 18 trademark filings, as reported by the trademark offices.

Browse filingsGet this data via the API
Filings of record
18
Still active
8
Registration rate
53%
Latest filingFirst in 2005
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

+2 more

Activity

Filings per year

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

Peak year · 4 filed
2010
2021 to 2025 · filed
1
First filing
2005

Filings by year: 2005: 2, 2007: 1, 2010: 4, 2012: 4, 2013: 1, 2016: 2, 2017: 1, 2019: 2, 2025: 1.

Clients

Companies on these filings

Owners on the latest 18 filings of record that Signa links to a company record.

5 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
NAVIYmixedWIPOHangzhou YuZhiQuan Instruments Co., Ltd.7, 92025-09-30
THE ELEPOPabandonedUSPTOAsia-Pacific International Expo LLC412019-04-03
THE ELEPOPabandonedUSPTOAsia-Pacific International Expo LLC412019-04-03
LEADSHOWcancelledUSPTOZhejiang Lianxiang Smart Home Co., Ltd.272017-11-29
NEUKONGabandonedUSPTOShenzhen Neukong Technology Corp., Ltd.92016-12-16
POPPAHabandonedUSPTOShenzhen Neukong Technology Corp., Ltd.92016-12-16
UNIPADcancelledUSPTOHangzhou United Friction Material Co., Ltd.122013-05-01
HAMATON PRO TOOLSabandonedUSPTOHangzhou Hamaton Tyre Valves Co., Ltd.82012-07-16
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_019d2078-52dc-710e-8f79-7d83d294ff65
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "att_019d2078-52dc-710e-8f79-7d83d294ff65",
  "object": "attorney",
  "name": "Jiwen Chen",
  "firm_name": "JOYWIN IP LAW PLLC",
  "country_code": "US",
  "trademark_count": 18
}