USPTO trademark

XC

Opposition periodUSPTOWord markClass 40Class 42

"XC" is a word mark owned by Xylyx Bio, Inc., filed at the USPTO on May 18, 2026. It is in its opposition period and covers classes 40 and 42.

Get this data via the API
Official USPTO record
XC trademark as filed
As filed with the USPTO
Status
Opposition period
Since September 29, 2026
Filed
May 18, 2026
Registered
Not yet
Expires
Not recorded
Application no.
99829715
Registration no.
Not yet
Office
USPTO
United States Patent and Trademark Office
Mark type
Word mark
2 classes
Ownership

Who owns XC

The owner and representative on file with the office.

Owner

Xylyx Bio, Inc.

Brooklyn, United States

Representative

Karen K. Won

Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C

Goods and services

What the mark covers

The products and services XC is filed for, grouped by Nice class.

  • Custom bioengineering of human donor organs for transplantation to produce bioengineered whole organ grafts; Custom manufacturing of bioengineered human organ grafts for transplantation; Treatment and processing of biological materials, namely, extracorporeal rehabilitation of human donor organs and ex vivo perfusion of human donor organs for use in clinical organ transplantation

  • Medical scientific research and development services in the fields of regenerative medicine, bioengineering of human organs, bioreactor and perfusion technologies involving human organs, and technologies for extracorporeal organ support, reconditioning, and rehabilitation; Medical scientific research and development services, namely, cellular and molecular analysis of human organs, testing of pharmaceuticals on human organs, and development of chemical reagents and biochemical assays for human organs; Medical research laboratory services in the field of tissue engineering and organ bioengineering

History

What has happened so far

Steps recorded by the USPTO, newest first.

  1. Official gazette publication confirmation e-mailed
  2. Published for opposition
  3. Notification of notice of publication e-mailed
  4. Approved for pub - principal register
  5. Assigned to examiner
  6. New application office supplied data entered
  7. Application filing receipt mailed
  8. New application entered
FAQ

About XC

Who owns the trademark "XC"?

The USPTO trademark "XC" (application 99829715) is owned by Xylyx Bio, Inc.

What is the status of "XC"?

Its status at the USPTO is: opposition period.

API

Get this data via the API

Everything on this page comes from the Signa API. Pull XC and marks like it into your own product with one request.

  • GET/v1/trademarks/{id}

    The full record: owners, classes, dates and images

  • GET/v1/trademarks/{id}/events

    Every step in the office history

  • GET/v1/proceedings?trademark_id={id}

    Oppositions and cancellations against the mark

Get API keyView docs
GET /v1/trademarks/{id}
ID=tm_019e43e8-59bd-71ef-aba5-4078deebd9c1
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_019e43e8-59bd-71ef-aba5-4078deebd9c1",
  "object": "trademark",
  "mark_text": "XC",
  "status": {
    "primary": "pending",
    "stage": "pending_opposition"
  },
  "office_code": "US",
  "application_number": "99829715",
  "filing_date": "2026-05-18",
  "nice_classes": [
    40,
    42
  ],
  "owners": [
    {
      "name": "Xylyx Bio, Inc.",
      "entity_id": null
    }
  ]
}