USPTO trademark

CISLEUKIN

Under examinationUSPTOWord markClass 42

"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 42 (Computer and Scientific Services).

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.
50144286
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.

  • Drug development services; Pharmaceutical research and development services; Research and development of therapeutic antibodies and pharmaceuticals, and research and development of technology in the field of therapeutic antibodies and pharmaceuticals; Scientific research and development in the field of biologic therapeutics for the treatment of cancer; Research and development of engineered therapeutics; Research and development of engineered cytokine-based biologic therapeutics; Pharmaceutical research and development services in the field of immunotherapy; Research and development of engineered protein-based pharmaceuticals for the treatment of oncological diseases; Scientific research in the fields of biotechnology, immunology, and protein engineering; Research and development of pharmaceutical preparations; Scientific research in the field of engineered cytokine therapeutics; Providing scientific research services in the fields of protein engineering and immunology for drug discovery purposes

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 50144286) 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-8376-7425-a086-9904f0a2302a
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_01a1115a-8376-7425-a086-9904f0a2302a",
  "object": "trademark",
  "mark_text": "CISLEUKIN",
  "status": {
    "primary": "pending",
    "stage": "examining"
  },
  "office_code": "US",
  "application_number": "50144286",
  "filing_date": "2026-10-05",
  "nice_classes": [
    42
  ],
  "owners": [
    {
      "name": "INHIBRX BIOSCIENCES, INC.",
      "entity_id": "ent_019eb719-f44e-7368-8d14-35e37951bef9"
    }
  ]
}