Opposition · USPTO

Opposition 91310964

PendingUSPTO

Opposition 91310964 at USPTO between Caterpillar Inc. and Yanhao Ouyang, over the mark ACYYCAT, filed Oct 7, 2026. Status in the office record: pending.

View ACYYCATGet this data via the API
Status
Pending
Filed
Oct 7, 2026
Marks involved
22
Parties

Who is involved

The parties as named in the office record.

Opponent

Caterpillar Inc.

Company trademarks
Respondent

Yanhao Ouyang

Timeline

How the case has moved

Dates from the USPTO record and the ACYYCAT filing.

  1. ACYYCAT filed

    Application 99814499 filed at the USPTO.

  2. Opposition filed

    Caterpillar Inc. started opposition 91310964 at USPTO against ACYYCAT.
  3. Next

    Awaiting decision

    No decision is recorded at USPTO yet.
Marks

Marks involved

1 contested mark, 21 marks the challenger relies on.

MarkRoleApplicationOffice
ACYYCATContested99814499USPTO
CATRelied on71575190USPTO
CATRelied on72164427USPTO
CATRelied on72174081USPTO
CATRelied on72452924USPTO
CATRelied on73762371USPTO
CATRelied on75236985USPTO
CATRelied on75830492USPTO
CATRelied on77289081USPTO
CATRelied on77560128USPTO
CATRelied on78815917USPTO
CATRelied on78981305USPTO

+10 more marks in this case

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_da1c0cc6-f269-4a08-9916-a66aeba71873
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_da1c0cc6-f269-4a08-9916-a66aeba71873",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91310964",
  "status": "pending",
  "office_code": "US",
  "filed_date": "2026-10-07",
  "parties": [
    {
      "name": "Caterpillar Inc.",
      "role": "opponent"
    },
    {
      "name": "Yanhao Ouyang",
      "role": "respondent"
    }
  ]
}