Opposition · USPTO

Opposition 91310129

PendingUSPTO

Opposition 91310129 at USPTO between EMC Water LLC and He, Ting, over the mark 51300CFILTER, filed Sep 3, 2026. Status in the office record: pending.

View 51300CFILTERGet this data via the API
Status
Pending
Filed
Sep 3, 2026
Marks involved
2
Parties

Who is involved

The parties as named in the office record.

Opponent

EMC Water LLC

Company trademarks
Respondent

He, Ting

Timeline

How the case has moved

Dates from the USPTO record and the 51300CFILTER filing.

  1. 51300CFILTER filed

    Application 98946040 filed at the USPTO.

  2. Opposition filed

    EMC Water LLC started opposition 91310129 at USPTO against 51300CFILTER.
  3. Next

    Awaiting decision

    No decision is recorded at USPTO yet.
Marks

Marks involved

1 contested mark, 1 mark the challenger relies on.

MarkRoleApplicationOffice
51300CFILTERContested98946040USPTO
51300CRelied on99517395USPTO
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_f9272166-74bb-40ef-a987-706cd40a4cc2
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_f9272166-74bb-40ef-a987-706cd40a4cc2",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91310129",
  "status": "pending",
  "office_code": "US",
  "filed_date": "2026-09-03",
  "parties": [
    {
      "name": "EMC Water LLC",
      "role": "opponent"
    },
    {
      "name": "He, Ting",
      "role": "respondent"
    }
  ]
}