Opposition · USPTO

Opposition 91309973

PendingUSPTO

Opposition 91309973 at USPTO between Duke University and Qianqian Kang, over the mark DUKETOP, filed Aug 27, 2026. Status in the office record: pending.

View DUKETOPGet this data via the API
Status
Pending
Filed
Aug 27, 2026
Marks involved
25
Parties

Who is involved

The parties as named in the office record.

Opponent

Duke University

Company trademarks
Respondent

Qianqian Kang

Timeline

How the case has moved

Dates from the USPTO record and the DUKETOP filing.

  1. DUKETOP filed

    Application 99535623 filed at the USPTO.

  2. Opposition filed

    Duke University started opposition 91309973 at USPTO against DUKETOP.
  3. Next

    Awaiting decision

    No decision is recorded at USPTO yet.
Marks

Marks involved

1 contested mark, 24 marks the challenger relies on.

MarkRoleApplicationOffice
DUKETOPContested99535623USPTO
DUKE UNIVERSITY STORESRelied on74208327USPTO
DUKE UNIVERSITYRelied on74208934USPTO
DUKE UNIVERSITYRelied on74208935USPTO
DKERelied on74693793USPTO
DUKERelied on75347293USPTO
DUKERelied on75567914USPTO
DUKECARDRelied on75892149USPTO
DUKIERelied on78674480USPTO
DUKERelied on78944306USPTO
DUKERelied on78944344USPTO
IRON DUKESRelied on85356737USPTO

+13 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_f2373c55-6a8d-48db-8efe-a903dd7d3844
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_f2373c55-6a8d-48db-8efe-a903dd7d3844",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91309973",
  "status": "pending",
  "office_code": "US",
  "filed_date": "2026-08-27",
  "parties": [
    {
      "name": "Duke University",
      "role": "opponent"
    },
    {
      "name": "Qianqian Kang",
      "role": "respondent"
    }
  ]
}