Opposition · USPTO

Opposition 91301249

OtherUSPTO

Opposition 91301249 at USPTO between e.l.f. Cosmetics, Inc. and Beijing Guoke Xinglian Technology Co., Ltd., over the mark MUCOSELF, filed Aug 26, 2025. Status in the office record: other.

View MUCOSELFGet this data via the API
Status
Other
Result
Other
Filed
Aug 26, 2025
Marks involved
6
Parties

Who is involved

The parties as named in the office record.

Opponent

e.l.f. Cosmetics, Inc.

Company trademarks
Respondent

Beijing Guoke Xinglian Technology Co., Ltd.

Timeline

How the case has moved

Dates from the USPTO record and the MUCOSELF filing.

  1. MUCOSELF filed

    Application 99047731 filed at the USPTO.

  2. Opposition filed

    e.l.f. Cosmetics, Inc. started opposition 91301249 at USPTO against MUCOSELF.
Marks

Marks involved

1 contested mark, 5 marks the challenger relies on.

MarkRoleApplicationOffice
MUCOSELFContested99047731USPTO
E.L.F.Relied on78664823USPTO
E.L.F.Relied on86656853USPTO
E.L.F.Relied on90188051USPTO
E.L.F. SKINRelied on90392610USPTO
E.L.F. SKINRelied on97921107USPTO
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_57da1cca-628f-481c-960f-9266b1768a2b
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_57da1cca-628f-481c-960f-9266b1768a2b",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91301249",
  "status": "other",
  "office_code": "US",
  "filed_date": "2025-08-26",
  "parties": [
    {
      "name": "e.l.f. Cosmetics, Inc.",
      "role": "opponent"
    },
    {
      "name": "Beijing Guoke Xinglian Technology Co., Ltd.",
      "role": "respondent"
    }
  ]
}