Opposition · USPTO

Opposition 91309053

PendingUSPTO

Opposition 91309053 at USPTO between OpenAI OpCo, LLC and Harvey Castro, over the mark DR GPT, filed Jul 22, 2026. Status in the office record: pending.

View DR GPTGet this data via the API
Status
Pending
Filed
Jul 22, 2026
Marks involved
7
Parties

Who is involved

The parties as named in the office record.

Opponent

OpenAI OpCo, LLC

Company trademarks
Respondent

Harvey Castro

Timeline

How the case has moved

Dates from the USPTO record and the DR GPT filing.

  1. DR GPT filed

    Application 99219861 filed at the USPTO.

  2. Opposition filed

    OpenAI OpCo, LLC started opposition 91309053 at USPTO against DR GPT.
  3. Next

    Awaiting decision

    No decision is recorded at USPTO yet.
Marks

Marks involved

1 contested mark, 6 marks the challenger relies on.

MarkRoleApplicationOffice
DR GPTContested99219861USPTO
GPT-3Relied on90092493USPTO
GPTRelied on97733259USPTO
CHATGPTRelied on97733261USPTO
GPT-4Relied on97836275USPTO
CHATGPTRelied on97928136USPTO
GPT-5Relied on98089548USPTO
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_6f5e3b6f-7bb5-4c22-a7c2-83c307efb0b5
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_6f5e3b6f-7bb5-4c22-a7c2-83c307efb0b5",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91309053",
  "status": "pending",
  "office_code": "US",
  "filed_date": "2026-07-22",
  "parties": [
    {
      "name": "OpenAI OpCo, LLC",
      "role": "opponent"
    },
    {
      "name": "Harvey Castro",
      "role": "respondent"
    }
  ]
}