Opposition · USPTO

Opposition 91310539

PendingUSPTO

Opposition 91310539 at USPTO between Duke University and Zarah Kelleher, over the mark DUKES, filed Sep 22, 2026. Status in the office record: pending.

View DUKESGet this data via the API
Status
Pending
Filed
Sep 22, 2026
Marks involved
27
Parties

Who is involved

The parties as named in the office record.

Opponent

Duke University

Company trademarks
Respondent

Zarah Kelleher

Timeline

How the case has moved

Dates from the USPTO record and the DUKES filing.

  1. DUKES filed

    Application 99358337 filed at the USPTO.

  2. Opposition filed

    Duke University started opposition 91310539 at USPTO against DUKES.
  3. Next

    Awaiting decision

    No decision is recorded at USPTO yet.
Marks

Marks involved

1 contested mark, 26 marks the challenger relies on.

MarkRoleApplicationOffice
DUKESContested99358337USPTO
DUKE UNIVERSITYRelied on74208934USPTO
DUKE UNIVERSITYRelied on74208935USPTO
DKERelied on74693793USPTO
DKERelied on74694684USPTO
DUKERelied on75347293USPTO
DUKERelied on75567914USPTO
DUKECARDRelied on75892149USPTO
D KERelied on75976140USPTO
DKERelied on75976141USPTO
DUKIERelied on78674480USPTO
DUKERelied on78944306USPTO

+15 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_9f4b0aca-b45f-4f6c-b435-42553a487b9a
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_9f4b0aca-b45f-4f6c-b435-42553a487b9a",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91310539",
  "status": "pending",
  "office_code": "US",
  "filed_date": "2026-09-22",
  "parties": [
    {
      "name": "Duke University",
      "role": "opponent"
    },
    {
      "name": "Zarah Kelleher",
      "role": "respondent"
    }
  ]
}