Trademark attorney

Yifeng Hao

Alioth Law P.C.United States

Yifeng Hao of Alioth Law P.C. (United States) is listed as the attorney or agent of record on 1,690 trademark filings, as reported by the trademark offices.

Browse filingsGet this data via the API
Filings of record
1,690
Still active
1,622
Registration rate
93%
Latest filingFirst in 2014
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 Glass1579%
  • Class 5Pharmaceuticals1559%
  • Class 3Cosmetics and Cleaning Preparations1549%
  • Class 20Furniture and Articles Not Otherwise Classified1519%
  • Class 9Computers and Scientific Devices1449%
  • Class 25Clothing1298%
  • Class 28Toys and Sporting Goods1298%
  • Class 11Environmental Control Apparatus956%

+30 more

Activity

Filings per year

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

Peak year · 918 filed
2026
2022 to 2026 · filed
1,669
First filing
2014

Filings by year: 2014: 1, 2015: 1, 2016: 1, 2018: 1, 2019: 7, 2020: 10, 2024: 3, 2025: 748, 2026: 918.

Filings

Latest filings of record

The most recent applications naming this attorney or agent.

Browse all filings
MarkStatusOfficeOwnerClassesFiled
UVELAexaminingUSPTOShihang Gao52026-10-27
ZEVAROexaminingUSPTOYuxin Liu282026-10-27
EVOLAexaminingUSPTOXiangyu Wu52026-10-27
LAMPTRONexaminingUSPTOLi Gao92026-10-27
JYHNK PARTYexaminingUSPTOYiwu Yunsheng Paper Products Co., Ltd.212026-10-27
HERITAGE HERITAGEexaminingUSPTOJianhua Xiao52026-10-26
NOORVIPER SNAKE NECKLACEexaminingUSPTOZishuai He142026-10-26
NANAMOIexaminingUSPTOHanbin Jiang142026-10-26
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_019d2a37-ecf8-710f-823c-1f98f601d5be
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "att_019d2a37-ecf8-710f-823c-1f98f601d5be",
  "object": "attorney",
  "name": "Yifeng Hao",
  "firm_name": "Alioth Law P.C.",
  "country_code": "US",
  "trademark_count": 1685
}