Opposition · USPTO

Opposition 91305333

OtherUSPTO

Opposition 91305333 at USPTO between The Ohio State University and Shenzhen Chaogeili Electronic Commerce Co., Ltd., over the mark DOOSU, filed Feb 18, 2026. Status in the office record: other.

View DOOSUGet this data via the API
Status
Other
Result
Other
Filed
Feb 18, 2026
Marks involved
5
Parties

Who is involved

The parties as named in the office record.

Opponent

The Ohio State University

Respondent

Shenzhen Chaogeili Electronic Commerce Co., Ltd.

Timeline

How the case has moved

Dates from the USPTO record and the DOOSU filing.

  1. DOOSU filed

    Application 99152249 filed at the USPTO.

  2. Opposition filed

    The Ohio State University started opposition 91305333 at USPTO against DOOSU.
Marks

Marks involved

4 contested marks, 1 mark the challenger relies on.

MarkRoleApplicationOffice
DOOSUContested99152249USPTO
DOOSUContested99152452USPTO
DOOSUContested99157815USPTO
DOOSUContested99162673USPTO
OSURelied on73042961USPTO
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_600be49d-f6f9-4f49-b053-0faeceb7d158
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_600be49d-f6f9-4f49-b053-0faeceb7d158",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91305333",
  "status": "other",
  "office_code": "US",
  "filed_date": "2026-02-18",
  "parties": [
    {
      "name": "The Ohio State University",
      "role": "opponent"
    },
    {
      "name": "Shenzhen Chaogeili Electronic Commerce Co., Ltd.",
      "role": "respondent"
    }
  ]
}