Opposition · USPTO

Opposition 91307711

PendingUSPTO

Opposition 91307711 at USPTO between Hangzhou Sanford Technology Co., Ltd and Fen Li, over the mark TOPENS, filed May 29, 2026. Status in the office record: pending.

View TOPENSGet this data via the API
Status
Pending
Filed
May 29, 2026
Marks involved
2
Parties

Who is involved

The parties as named in the office record.

Opponent

Hangzhou Sanford Technology Co., Ltd

Respondent

Fen Li

Timeline

How the case has moved

Dates from the USPTO record and the TOPENS filing.

  1. TOPENS filed

    Application 99364691 filed at the USPTO.

  2. Opposition filed

    Hangzhou Sanford Technology Co., Ltd started opposition 91307711 at USPTO against TOPENS.
  3. Next

    Awaiting decision

    No decision is recorded at USPTO yet.
Marks

Marks involved

1 contested mark, 1 mark the challenger relies on.

MarkRoleApplicationOffice
TOPENSContested99364691USPTO
TOPENSRelied on87535193USPTO
API

Get this data via the API

Every fact on this page comes from the Signa API. Track oppositions and cancellations on any mark with one request.

  • GET/v1/proceedings/{id}

    Parties, dates, outcome and every mark in the case

  • GET/v1/proceedings?trademark_id={trademark_id}

    Every proceeding on a mark

Get API keyView docs
GET /v1/proceedings/{id}
ID=prc_3dda994a-b680-4612-87bf-f0a9cec4d1ba
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_3dda994a-b680-4612-87bf-f0a9cec4d1ba",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91307711",
  "status": "pending",
  "office_code": "US",
  "filed_date": "2026-05-29",
  "parties": [
    {
      "name": "Hangzhou Sanford Technology Co., Ltd",
      "role": "opponent"
    },
    {
      "name": "Fen Li",
      "role": "respondent"
    }
  ]
}