Opposition · USPTO

Opposition 91304621

OtherUSPTO

Opposition 91304621 at USPTO between Karsten Manufacturing Corporation and Pingwins Inc., over the mark PINGWINS, filed Jan 21, 2026. Status in the office record: other.

View PINGWINSGet this data via the API
Status
Other
Result
Other
Filed
Jan 21, 2026
Marks involved
6
Parties

Who is involved

The parties as named in the office record.

Opponent

Karsten Manufacturing Corporation

Company trademarks
Respondent

Pingwins Inc.

Timeline

How the case has moved

Dates from the USPTO record and the PINGWINS filing.

  1. PINGWINS filed

    Application 99245059 filed at the USPTO.

  2. Opposition filed

    Karsten Manufacturing Corporation started opposition 91304621 at USPTO against PINGWINS.
Marks

Marks involved

1 contested mark, 5 marks the challenger relies on.

MarkRoleApplicationOffice
PINGWINSContested99245059USPTO
PINGRelied on77476580USPTO
PINGRelied on85010994USPTO
PINGRelied on85216335USPTO
PINGRelied on85233667USPTO
PINGRelied on85360393USPTO
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_4ebf413c-7c0d-41be-907b-5fa42601a500
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_4ebf413c-7c0d-41be-907b-5fa42601a500",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91304621",
  "status": "other",
  "office_code": "US",
  "filed_date": "2026-01-21",
  "parties": [
    {
      "name": "Karsten Manufacturing Corporation",
      "role": "opponent"
    },
    {
      "name": "PINGWINS Inc.",
      "role": "respondent"
    }
  ]
}