Opposition · USPTO

Opposition 91306950

OtherUSPTO

Opposition 91306950 at USPTO between LGND, LLC, LGND, LLC and LGND AI, Inc., over the mark LGND, filed Apr 29, 2026. Status in the office record: other.

View LGNDGet this data via the API
Status
Other
Result
Other
Filed
Apr 29, 2026
Marks involved
5
Parties

Who is involved

The parties as named in the office record.

Opponent

LGND, LLC, LGND, LLC

Respondent

LGND AI, Inc.

Timeline

How the case has moved

Dates from the USPTO record and the LGND filing.

  1. LGND filed

    Application 99280478 filed at the USPTO.

  2. Opposition filed

    LGND, LLC, LGND, LLC started opposition 91306950 at USPTO against LGND.
Marks

Marks involved

2 contested marks, 3 marks the challenger relies on.

MarkRoleApplicationOffice
LGNDContested99280478USPTO
LGND AIContested99280479USPTO
LGNDRelied on87503371USPTO
LGNDRelied on99791160USPTO
LGNDXRelied on99791167USPTO
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_a5da0c69-e962-4724-84f5-2d0834463cb7
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_a5da0c69-e962-4724-84f5-2d0834463cb7",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91306950",
  "status": "other",
  "office_code": "US",
  "filed_date": "2026-04-29",
  "parties": [
    {
      "name": "LGND, LLC, LGND, LLC",
      "role": "opponent"
    },
    {
      "name": "LGND AI, Inc.",
      "role": "respondent"
    }
  ]
}