Who owns the CELPHASE trademark?

The CELPHASE trademark is owned by Transition Bio, Inc..

What class is the CELPHASE trademark registered in?

The CELPHASE trademark is registered in Class 042 (Scientific, technology & SaaS services).

What is the serial number for CELPHASE?

The USPTO serial number for CELPHASE is 98258357.

What is the registration number for CELPHASE?

CELPHASE is registered under USPTO registration number 0.

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Updated Oct 8, 2026·33 searches this week

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CEL

USPTO Trademark Record

PENDING

CELPHASE

SN 98258357·Reg 0·Filed Nov 07, 2023

Owner Transition Bio, 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.

CELPHASE (Serial No. 98258357), Registration No. 0, is a pending US trademark filed on Nov 07, 2023 by Transition Bio, Inc.. This trademark covers Class 042 (Scientific, technology & SaaS services).

Statement of Use due: December 10, 202663 days remaining

Mark Intelligence

CELPHASE (Reg. #0) is a pending US trademark that was filed in 2023 and is currently under USPTO examination. The mark covers Class 042 (Scientific, technology & SaaS services). 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

Nov 07, 2023

SERIAL

98258357

REG#

Filing Information

StatusPENDING

Filing DateNov 07, 2023

Serial Number98258357

Registration No.0

Status DateJun 10, 2026

Published for OppositionOct 29, 2024

Mark TypeStandard characters

Filing Basis & Declarations

Standard Characters Claimed

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 042Scientific, technology & SaaS services

US codes: 100, 101

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

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Status History

26 events

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

Jun 11, 2026

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

SOU TEAS EXTENSION RECEIVED

Jun 10, 2026

SOU TEAS EXTENSION RECEIVED

SOU EXTENSION 3 FILED

Jun 10, 2026

SOU EXTENSION 3 FILED

SOU EXTENSION 3 GRANTED

Jun 10, 2026

SOU EXTENSION 3 GRANTED

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

Dec 09, 2025

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

SOU TEAS EXTENSION RECEIVED

Dec 08, 2025

SOU TEAS EXTENSION RECEIVED

SOU EXTENSION 2 FILED

Dec 08, 2025

SOU EXTENSION 2 FILED

SOU EXTENSION 2 GRANTED

Dec 08, 2025

SOU EXTENSION 2 GRANTED

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

Sep 15, 2025

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

SOU TEAS EXTENSION RECEIVED

Jun 10, 2025

SOU TEAS EXTENSION RECEIVED

SOU EXTENSION 1 FILED

Jun 10, 2025

SOU EXTENSION 1 FILED

SOU EXTENSION 1 GRANTED

Jun 10, 2025

SOU EXTENSION 1 GRANTED

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

Dec 10, 2024

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

PUBLISHED FOR OPPOSITION

Oct 29, 2024

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Oct 29, 2024

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Oct 09, 2024

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Sep 20, 2024

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Sep 19, 2024

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Sep 19, 2024

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Sep 19, 2024

TEAS/EMAIL CORRESPONDENCE ENTERED

NON-FINAL ACTION WRITTEN

Jun 20, 2024

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Jun 20, 2024

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Jun 20, 2024

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO EXAMINER

Jun 15, 2024

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Dec 05, 2023

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Nov 10, 2023

NEW APPLICATION ENTERED

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