Trademark attorney

Defeng Song

Defeng Song of Attorney of Record is listed as the attorney or agent of record on 1,341 trademark filings, as reported by the trademark offices.

Filings of record
1,341
Still active
1,242
Registration rate
87%
Latest filingFirst in 2015
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

+30 more

Activity

Filings per year

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

Peak year · 685 filed
2026
2022 to 2026 · filed
1,305
First filing
2015

Filings by year: 2015: 3, 2017: 1, 2018: 2, 2019: 10, 2020: 16, 2021: 4, 2023: 6, 2024: 31, 2025: 583, 2026: 685.

Filings

Latest filings of record

The most recent applications naming this attorney or agent.

Browse all filings
MarkStatusOfficeOwnerClassesFiled
WUQERYexaminingUSPTOShenzhen Zhaoyi Technology Co., Ltd.342026-10-27
MARGARETexaminingUSPTOJiali Song152026-10-27
CHUJOREEexaminingUSPTOChangsha Chujianli Trading Co., Ltd.262026-10-27
ZMIWAZSexaminingUSPTOYingying Dai82026-10-27
VELTORQPROexaminingUSPTOHangzhou Whale Network Technology Co., Ltd.72026-10-27
QAVZELIexaminingUSPTOShenzhen Runzhihui E-Commerce Co., Ltd.32026-10-27
MACHLOOMOOexaminingUSPTOJian Xin52026-10-27
LUXE FOUND ATIONexaminingUSPTOXiangkuai Lv32026-10-27
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 /v1/attorneys/{id}
ID=att_019d29f1-3fd1-71d9-afba-dde6cd8521ef
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "att_019d29f1-3fd1-71d9-afba-dde6cd8521ef",
  "object": "attorney",
  "name": "Defeng Song",
  "firm_name": "Attorney of Record",
  "country_code": null,
  "trademark_count": 1332
}