Opposition · USPTO

Opposition 91306911

PendingUSPTO

Opposition 91306911 at USPTO between CleanArc Data Centers Operating LLC and CleanSpark, Inc., over the mark CLEANSPARK, filed Apr 27, 2026. Status in the office record: pending.

View CLEANSPARKGet this data via the API
Status
Pending
Filed
Apr 27, 2026
Marks involved
3
Parties

Who is involved

The parties as named in the office record.

Opponent

CleanArc Data Centers Operating LLC

Respondent

CleanSpark, Inc.

Company trademarks
Timeline

How the case has moved

Dates from the USPTO record and the CLEANSPARK filing.

  1. CLEANSPARK filed

    Application 99192305 filed at the USPTO.

  2. Opposition filed

    CleanArc Data Centers Operating LLC started opposition 91306911 at USPTO against CLEANSPARK.
  3. Next

    Awaiting decision

    No decision is recorded at USPTO yet.
Marks

Marks involved

1 contested mark, 2 marks the challenger relies on.

MarkRoleApplicationOffice
CLEANSPARKContested99192305USPTO
CLEANARCRelied on98410351USPTO
CLEANARC DATA CENTERSRelied on98539117USPTO
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_e1de1da7-bbde-4a73-9503-7573102bfc51
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_e1de1da7-bbde-4a73-9503-7573102bfc51",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91306911",
  "status": "pending",
  "office_code": "US",
  "filed_date": "2026-04-27",
  "parties": [
    {
      "name": "CleanArc Data Centers Operating LLC",
      "role": "opponent"
    },
    {
      "name": "CleanSpark, Inc.",
      "role": "respondent"
    }
  ]
}