Who owns the ADDITION THERAPEUTICS trademark?

The ADDITION THERAPEUTICS trademark is owned by Addition Therapeutics, Inc..

What is the serial number for ADDITION THERAPEUTICS?

The USPTO serial number for ADDITION THERAPEUTICS is 99452451.

What is the registration number for ADDITION THERAPEUTICS?

ADDITION THERAPEUTICS is registered under USPTO registration number 0.

ADD

USPTO Trademark Record

PENDING

ADDITION THERAPEUTICS

Q: What class is the ADDITION THERAPEUTICS trademark registered in?

The ADDITION THERAPEUTICS trademark is registered in Class 042 (Scientific, technology & SaaS services), Class 005 (Pharmaceuticals, medical & veterinary preparations).

SN 99452451·Reg 0·Filed Oct 20, 2025

Owner Addition Therapeutics, Inc.

Scientific and technological services and research and design relating thereto; industrial analysis, industrial research and industrial design services; quality control and authentication services; design and development of computer hardware and software.; Pharmaceuticals, medical and veterinary preparations; sanitary preparations for medical purposes; dietetic food and substances adapted for medical or veterinary purposes, food for babies; dietary supplements for human beings and animals; adhesive plasters, materials for dressings; material for filling teeth, dental wax; disinfectants; preparations for destroying vermin; fungicides, herbicides.

ADDITION THERAPEUTICS (Serial No. 99452451), Registration No. 0, is a pending US trademark filed on Oct 20, 2025 by Addition Therapeutics, Inc.. This trademark covers Class 042 (Scientific, technology & SaaS services), Class 005 (Pharmaceuticals, medical & veterinary preparations).

Statement of Use due: September 30, 20262 days remaining

Mark Intelligence

ADDITION THERAPEUTICS (Reg. #0) is a pending US trademark that was filed in 2025 and is currently under USPTO examination. The mark covers Class 042 (Scientific, technology & SaaS services) and Class 005 (Pharmaceuticals, medical & veterinary preparations) respectively. Goods and services include Scientific and technological services and research and design relating thereto; industrial analysis, industrial research.... The mark faced 1 opposition proceeding during prosecution.

FILED

Oct 20, 2025

SERIAL

99452451

REG#

REGISTERED

Dec 31, 1969

Owner

Applicant

Addition Therapeutics, Inc.

Entity

Corporation

State

Address

201 Haskins Way, Suite 300, South San Francisco, CA, 94080

Country

Attorney

NameAaron D. Hendelman

Law firm

Aaron D. Hendelman WILSON SONSINI GOODRICH & ROSATI

Docket

67098-TM1005

Address

650 Page Mill Road, Palo Alto, CA 94304, United States

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Filing Information

StatusPENDING

Filing DateOct 20, 2025

Serial Number99452451

Registration No.0

Registration DateDec 31, 1969

Status DateMar 31, 2026

Published for OppositionFeb 03, 2026

Mark TypeStandard characters

Attorney Docket67098-TM1005

Status DescriptionLive and pending, notice of allowance issued

Filing Signals

FILED

2025

YEARS AGO

CLASSES

MADRID FILINGS

—

Opposed 1× during prosecution

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Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 042Scientific, technology & SaaS services

US codes: 100, 101

Class 005Pharmaceuticals, medical & veterinary preparations

US codes: 005, 006, 018, 044, 046, 051, 052

Pharmaceuticals, medical and veterinary preparations; sanitary preparations for medical purposes; dietetic food and substances adapted for medical or veterinary purposes, food for babies; dietary supplements for human beings and animals; adhesive plasters, materials for dressings; material for filling teeth, dental wax; disinfectants; preparations for destroying vermin; fungicides, herbicides.

This description is as filed with the USPTO and defines the scope of trademark protection.

Status History

13 events

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

Mar 31, 2026

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

PUBLISHED FOR OPPOSITION

Feb 03, 2026

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Feb 03, 2026

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Jan 28, 2026

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

ASSIGNED TO EXAMINER

Jan 07, 2026

ASSIGNED TO EXAMINER

EXAMINERS AMENDMENT -WRITTEN

Jan 07, 2026

EXAMINERS AMENDMENT -WRITTEN

EXAMINERS AMENDMENT E-MAILED

Jan 07, 2026

EXAMINERS AMENDMENT E-MAILED

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

Jan 07, 2026

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

EXAMINER'S AMENDMENT ENTERED

Jan 07, 2026

EXAMINER'S AMENDMENT ENTERED

APPROVED FOR PUB - PRINCIPAL REGISTER

Jan 07, 2026

APPROVED FOR PUB - PRINCIPAL REGISTER

NEW APPLICATION ENTERED

Oct 20, 2025

NEW APPLICATION ENTERED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Oct 20, 2025

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

APPLICATION FILING RECEIPT MAILED

Oct 20, 2025

APPLICATION FILING RECEIPT MAILED

ADDITION THERAPEUTICS

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