Opposition · USPTO

Opposition 91305817

OtherUSPTO

Opposition 91305817 at USPTO between NIHC, Inc. and Guo Boyong, over the mark XZELLA, filed Mar 11, 2026. Status in the office record: other.

View XZELLAGet this data via the API
Status
Other
Result
Other
Filed
Mar 11, 2026
Marks involved
6
Parties

Who is involved

The parties as named in the office record.

Opponent

NIHC, Inc.

Respondent

Guo Boyong

Timeline

How the case has moved

Dates from the USPTO record and the XZELLA filing.

  1. XZELLA filed

    Application 99201887 filed at the USPTO.

  2. Opposition filed

    NIHC, Inc. started opposition 91305817 at USPTO against XZELLA.
Marks

Marks involved

1 contested mark, 5 marks the challenger relies on.

MarkRoleApplicationOffice
XZELLAContested99201887USPTO
ZELLARelied on77025247USPTO
ZELLARelied on85270965USPTO
Z BY ZELLARelied on85426431USPTO
ZELLA GIRLRelied on85452168USPTO
Z BY ZELLARelied on86880030USPTO
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_14919c18-9550-4773-9359-93c99d291754
curl https://api.signa.so/v1/proceedings/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "prc_14919c18-9550-4773-9359-93c99d291754",
  "object": "proceeding",
  "proceeding_type": "opposition",
  "proceeding_number": "91305817",
  "status": "other",
  "office_code": "US",
  "filed_date": "2026-03-11",
  "parties": [
    {
      "name": "NIHC, Inc.",
      "role": "opponent"
    },
    {
      "name": "Guo Boyong",
      "role": "respondent"
    }
  ]
}