Opposition · USPTO

Opposition 91302139

OtherUSPTO

Opposition 91302139 at USPTO between TikTok Ltd. and Brian Chen, over the mark TIKTAG, filed Oct 2, 2025. Status in the office record: other.

View TIKTAGGet this data via the API
Status
Other
Result
Other
Filed
Oct 2, 2025
Marks involved
10
Parties

Who is involved

The parties as named in the office record.

Opponent

TikTok Ltd.

Company trademarks
Respondent

Brian Chen

Timeline

How the case has moved

Dates from the USPTO record and the TIKTAG filing.

  1. TIKTAG filed

    Application 98845657 filed at the USPTO.

  2. Opposition filed

    TikTok Ltd. started opposition 91302139 at USPTO against TIKTAG.
Marks

Marks involved

1 contested mark, 9 marks the challenger relies on.

MarkRoleApplicationOffice
TIKTAGContested98845657USPTO
TIK TOKRelied on87888634USPTO
TIKTOKRelied on88101026USPTO
TIKTOKRelied on88260950USPTO
TIKTOKRelied on88260972USPTO
TIKTOKRelied on88383999USPTO
TIKTOKRelied on88384010USPTO
TIKTOKRelied on88386243USPTO
TIKTOKRelied on88726088USPTO
TIKTOKRelied on97043426USPTO
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_fc9038fc-9bc4-4478-9633-61cf17ecad71
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_fc9038fc-9bc4-4478-9633-61cf17ecad71",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91302139",
  "status": "other",
  "office_code": "US",
  "filed_date": "2025-10-02",
  "parties": [
    {
      "name": "TikTok Ltd.",
      "role": "opponent"
    },
    {
      "name": "Brian Chen",
      "role": "respondent"
    }
  ]
}