USPTO trademark

CISLEUKIN

Under examinationUSPTOWord markClass 1

"CISLEUKIN" is a word mark owned by Inhibrx Biosciences, Inc., filed at the USPTO on October 5, 2026. It is under examination and covers class 1 (Chemicals).

View Inhibrx Biosciences, Inc. portfolioGet this data via the API
Official USPTO record
CISLEUKIN trademark as filed
As filed with the USPTO
Status
Under examination
Since October 5, 2026
Filed
October 5, 2026
Registered
Not yet
Expires
Not recorded
Application no.
50144291
Registration no.
Not yet
Office
USPTO
United States Patent and Trademark Office
Mark type
Word mark
1 class
Ownership

Who owns CISLEUKIN

The owner on file, matched to the company behind it. Every owner-name spelling for that company is grouped on its page.

Owner

Inhibrx Biosciences, Inc.

INBX · La Jolla, United States

14 trademarks in the portfolioView company

Representative

Andrew D. Skale

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

Goods and services

What the mark covers

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

  • Biological preparations, namely, engineered proteins for use in scientific and pharmaceutical research; Biological preparations, namely, engineered cytokine proteins targeting immune cells for use in scientific and pharmaceutical research; Biological preparations, namely, engineered cytokine proteins for use in scientific and pharmaceutical research; Proteins and peptides for use in biotechnology and immunology research; Proteins and peptides for use in pharmaceutical and biotechnological research; Engineered protein molecules for use in laboratory, scientific, medical, and pharmaceutical research

History

What has happened so far

Steps recorded by the USPTO, newest first.

  1. Application filing receipt mailed
  2. New application entered
FAQ

About CISLEUKIN

Who owns the trademark "CISLEUKIN"?

The USPTO trademark "CISLEUKIN" (application 50144291) is owned by Inhibrx Biosciences, Inc.

What is the status of "CISLEUKIN"?

Its status at the USPTO is: under examination.

API

Get this data via the API

Everything on this page comes from the Signa API. Pull CISLEUKIN 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_01a1115a-83ac-709a-95d3-d1861391904a
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_01a1115a-83ac-709a-95d3-d1861391904a",
  "object": "trademark",
  "mark_text": "CISLEUKIN",
  "status": {
    "primary": "pending",
    "stage": "examining"
  },
  "office_code": "US",
  "application_number": "50144291",
  "filing_date": "2026-10-05",
  "nice_classes": [
    1
  ],
  "owners": [
    {
      "name": "INHIBRX BIOSCIENCES, INC.",
      "entity_id": "ent_019eb719-f44e-7368-8d14-35e37951bef9"
    }
  ]
}