Opposition · USPTO

Opposition 91302708

OtherUSPTO

Opposition 91302708 at USPTO between e.l.f. Cosmetics, Inc. and Dingliang Du, over the mark FIVELF, filed Oct 28, 2025. Status in the office record: other.

View FIVELFGet this data via the API
Status
Other
Result
Other
Filed
Oct 28, 2025
Marks involved
7
Parties

Who is involved

The parties as named in the office record.

Opponent

e.l.f. Cosmetics, Inc.

Company trademarks
Respondent

Dingliang Du

Timeline

How the case has moved

Dates from the USPTO record and the FIVELF filing.

  1. FIVELF filed

    Application 99190482 filed at the USPTO.

  2. Opposition filed

    e.l.f. Cosmetics, Inc. started opposition 91302708 at USPTO against FIVELF.
Marks

Marks involved

1 contested mark, 6 marks the challenger relies on.

MarkRoleApplicationOffice
FIVELFContested99190482USPTO
E.L.F.Relied on78664823USPTO
E.L.F.Relied on86656853USPTO
E.L.F.ING AMAZINGRelied on88479455USPTO
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_e3d2444f-0984-48eb-84f4-604795a5dac9
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_e3d2444f-0984-48eb-84f4-604795a5dac9",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91302708",
  "status": "other",
  "office_code": "US",
  "filed_date": "2025-10-28",
  "parties": [
    {
      "name": "e.l.f. Cosmetics, Inc.",
      "role": "opponent"
    },
    {
      "name": "Dingliang Du",
      "role": "respondent"
    }
  ]
}