Opposition · USPTO

Opposition 91308091

SuspendedUSPTO

Opposition 91308091 at USPTO between Duke University and G. Duk, LLC, over the mark DŪK, filed Jun 15, 2026. Status in the office record: suspended.

View DŪKGet this data via the API
Status
Suspended
Filed
Jun 15, 2026
Marks involved
32
Parties

Who is involved

The parties as named in the office record.

Opponent

Duke University

Company trademarks
Respondent

G. Duk, LLC

Timeline

How the case has moved

Dates from the USPTO record and the DŪK filing.

  1. DŪK filed

    Application 99120470 filed at the USPTO.

  2. Opposition filed

    Duke University started opposition 91308091 at USPTO against DŪK.
  3. Next

    Suspended

    No decision is recorded at USPTO yet.
Marks

Marks involved

1 contested mark, 31 marks the challenger relies on.

MarkRoleApplicationOffice
DŪKContested99120470USPTO
DUKE UNIVERSITYRelied on74208934USPTO
DUKE UNIVERSITYRelied on74208935USPTO
DKERelied on74693793USPTO
DKERelied on74694684USPTO
DUKE CENTER FOR LIVINGRelied on75321843USPTO
DUKERelied on75347293USPTO
DUKERelied on75567914USPTO
DUKECARDRelied on75892149USPTO
D KERelied on75976140USPTO
DKERelied on75976141USPTO
DUKEENGAGERelied on77700792USPTO

+20 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_df90f9d6-6a35-4721-b1d5-46d1bb4a4136
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_df90f9d6-6a35-4721-b1d5-46d1bb4a4136",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91308091",
  "status": "suspended",
  "office_code": "US",
  "filed_date": "2026-06-15",
  "parties": [
    {
      "name": "Duke University",
      "role": "opponent"
    },
    {
      "name": "G. DUK, LLC",
      "role": "respondent"
    }
  ]
}