Opposition · USPTO

Opposition 91302074

OtherUSPTO

Opposition 91302074 at USPTO between Merz Pharma GmbH & Co. KGaA and Haiqiao Zhang, over the mark MRZZ, filed Sep 30, 2025. Status in the office record: other.

View MRZZGet this data via the API
Status
Other
Result
Other
Filed
Sep 30, 2025
Marks involved
7
Parties

Who is involved

The parties as named in the office record.

Opponent

Merz Pharma GmbH & Co. KGaA

Company trademarks
Respondent

Haiqiao Zhang

Timeline

How the case has moved

Dates from the USPTO record and the MRZZ filing.

  1. MRZZ filed

    Application 99015865 filed at the USPTO.

  2. Opposition filed

    Merz Pharma GmbH & Co. KGaA started opposition 91302074 at USPTO against MRZZ.
Marks

Marks involved

1 contested mark, 6 marks the challenger relies on.

MarkRoleApplicationOffice
MRZZContested99015865USPTO
MERZRelied on73141598USPTO
MERZRelied on74267765USPTO
MERZRelied on75367223USPTO
MERZRelied on77517151USPTO
MERZRelied on78845247USPTO
MERZ AESTHETICSRelied on85010665USPTO
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_e4484e80-64de-40af-ac66-a00137971db3
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_e4484e80-64de-40af-ac66-a00137971db3",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91302074",
  "status": "other",
  "office_code": "US",
  "filed_date": "2025-09-30",
  "parties": [
    {
      "name": "Merz Pharma GmbH & Co. KGaA",
      "role": "opponent"
    },
    {
      "name": "Haiqiao Zhang",
      "role": "respondent"
    }
  ]
}