Opposition · USPTO

Opposition 91304061

OtherUSPTO

Opposition 91304061 at USPTO between EMC Water LLC and Xinhengshun (Shanghai) Technology Co., Ltd, over the mark 51300C, filed Dec 23, 2025. Status in the office record: other.

View 51300CGet this data via the API
Status
Other
Result
Other
Filed
Dec 23, 2025
Marks involved
2
Parties

Who is involved

The parties as named in the office record.

Opponent

EMC Water LLC

Company trademarks
Respondent

Xinhengshun (Shanghai) Technology Co., Ltd

Timeline

How the case has moved

Dates from the USPTO record and the 51300C filing.

  1. 51300C filed

    Application 98902861 filed at the USPTO.

  2. Opposition filed

    EMC Water LLC started opposition 91304061 at USPTO against 51300C.
Marks

Marks involved

1 contested mark, 1 mark the challenger relies on.

MarkRoleApplicationOffice
51300CContested98902861USPTO
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_98b210d6-4556-41dc-a267-ef31c8a9e6af
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_98b210d6-4556-41dc-a267-ef31c8a9e6af",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91304061",
  "status": "other",
  "office_code": "US",
  "filed_date": "2025-12-23",
  "parties": [
    {
      "name": "EMC Water LLC",
      "role": "opponent"
    },
    {
      "name": "Xinhengshun (Shanghai) Technology Co., Ltd",
      "role": "respondent"
    }
  ]
}