Opposition · USPTO

Opposition 91300248

OtherUSPTO

Opposition 91300248 at USPTO between Provepharm Life Solutions and Celgene Corporation, over the mark LYMZENTY, filed Jul 10, 2025. Status in the office record: other.

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

Who is involved

The parties as named in the office record.

Opponent

Provepharm Life Solutions

Company trademarks
Respondent

Celgene Corporation

Company trademarks
Timeline

How the case has moved

Dates from the USPTO record and the LYMZENTY filing.

  1. LYMZENTY filed

    Application 98435992 filed at the USPTO.

  2. Opposition filed

    Provepharm Life Solutions started opposition 91300248 at USPTO against LYMZENTY.
Marks

Marks involved

1 contested mark, 1 mark the challenger relies on.

MarkRoleApplicationOffice
LYMZENTYContested98435992USPTO
LYMZULRelied on97877503USPTO
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_fc69d5eb-7031-4ae1-b52c-6f73d202ad94
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_fc69d5eb-7031-4ae1-b52c-6f73d202ad94",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91300248",
  "status": "other",
  "office_code": "US",
  "filed_date": "2025-07-10",
  "parties": [
    {
      "name": "Provepharm Life Solutions",
      "role": "opponent"
    },
    {
      "name": "Celgene Corporation",
      "role": "respondent"
    }
  ]
}