Who owns the DIAGUM trademark?

The DIAGUM trademark is owned by Mitsubishi Corporation Life Sciences Limited.

What is the serial number for DIAGUM?

The USPTO serial number for DIAGUM is 79443497.

What is the registration number for DIAGUM?

DIAGUM is registered under USPTO registration number 8445994.

DIA

USPTO Trademark Record

REGISTERED

DIAGUM

Q: What class is the DIAGUM trademark registered in?

The DIAGUM trademark is registered in Class 001 (Chemicals for industrial, scientific & agricultural use), Class 030 (Coffee, tea, rice, bakery goods & condiments).

SN 79443497·Reg 8445994·Filed Dec 16, 2025

Owner Mitsubishi Corporation Life Sciences Limited

Chemicals for use in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial resins, unprocessed plastics; fire extinguishing and fire prevention compositions; tempering and soldering preparations; substances for tanning animal skins and hides; adhesives for use in industry; compost, manures, fertilizers; biological preparations for use in industry and science.; Coffee, tea, cocoa and substitutes therefor; rice, pasta and noodles; tapioca and sago; flour and preparations made from cereals; bread, pastries and confectionery; chocolate; ice cream, sorbets and other edible ices; sugar, honey, treacle; yeast, baking-powder; salt, seasonings, spices, preserved herbs; vinegar, sauces and other condiments; ice (frozen water).

DIAGUM (Serial No. 79443497), Registration No. 8445994, is a registered US trademark filed on Dec 16, 2025 by Mitsubishi Corporation Life Sciences Limited. This trademark covers Class 001 (Chemicals for industrial, scientific & agricultural use), Class 030 (Coffee, tea, rice, bakery goods & condiments).

early section 8: September 22, 2032

Mark Intelligence

DIAGUM (Reg. #8445994) is a registered US trademark that has been protecting its owner, Mitsubishi Corporation Life Sciences Limited, since 2025. The mark covers Class 001 (Chemicals for industrial, scientific & agricultural use) and Class 030 (Coffee, tea, rice, bakery goods & condiments) respectively. Goods and services include Chemicals for use in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocesse.... The mark faced 1 opposition proceeding during prosecution.

FILED

Dec 16, 2025

SERIAL

79443497

REG#

8445994

REGISTERED

Sep 22, 2026

Owner

Applicant

Mitsubishi Corporation Life Sciences Limited

Entity

Corporation

Address

1-3, Yurakucho 1-chome,, Chiyoda-ku Tokyo 100-0006

Country

Attorney

NameJeffrey H. Handelsman

Law firm

Jeffrey H. Handelsman Greenblum & Bernstein, P.L.C.

Docket

T76284

Address

1950 Roland Clarke Place, Reston, VA 20191-1411, United States

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Filing Information

StatusREGISTERED

Filing DateDec 16, 2025

Serial Number79443497

Registration No.8445994

Registration DateSep 22, 2026

Status DateSep 22, 2026

Published for OppositionAug 04, 2026

Mark TypeDesign with words

Attorney DocketT76284

Status DescriptionLive and registered

Filing Signals

FILED

2025

YEARS AGO

CLASSES

MADRID FILINGS

—

Opposed 1× during prosecution

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CLASSES

OFFICE

USPTO

COUNTRY

Class 001Chemicals for industrial, scientific & agricultural use

US codes: 001, 005, 006, 010, 026, 046

Class 030Coffee, tea, rice, bakery goods & condiments

US codes: 046

Coffee, tea, cocoa and substitutes therefor; rice, pasta and noodles; tapioca and sago; flour and preparations made from cereals; bread, pastries and confectionery; chocolate; ice cream, sorbets and other edible ices; sugar, honey, treacle; yeast, baking-powder; salt, seasonings, spices, preserved herbs; vinegar, sauces and other condiments; ice (frozen water).

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

Status History

23 events

REGISTERED-PRINCIPAL REGISTER

Sep 22, 2026

REGISTERED-PRINCIPAL REGISTER

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Sep 22, 2026

NOTICE OF REGISTRATION CONFIRMATION EMAILED

PUBLISHED FOR OPPOSITION

Aug 04, 2026

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Aug 04, 2026

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Jul 29, 2026

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Jul 02, 2026

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Jun 30, 2026

TEAS CHANGE OF OWNER ADDRESS RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Jun 30, 2026

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

Jun 30, 2026

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jun 30, 2026

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS

Jun 30, 2026

TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Jun 30, 2026

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Jun 30, 2026

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Jun 30, 2026

TEAS/EMAIL CORRESPONDENCE ENTERED

REFUSAL PROCESSED BY IB

Jun 18, 2026

REFUSAL PROCESSED BY IB

REFUSAL PROCESSED BY MPU

Jun 03, 2026

REFUSAL PROCESSED BY MPU

NON-FINAL ACTION MAILED - REFUSAL SENT TO IB

Jun 03, 2026

NON-FINAL ACTION MAILED - REFUSAL SENT TO IB

NON-FINAL ACTION (IB REFUSAL) PREPARED FOR REVIEW

Apr 23, 2026

NON-FINAL ACTION (IB REFUSAL) PREPARED FOR REVIEW

NON-FINAL ACTION WRITTEN

Apr 22, 2026

NON-FINAL ACTION WRITTEN

ASSIGNED TO EXAMINER

Apr 18, 2026

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Feb 17, 2026

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

APPLICATION FILING RECEIPT MAILED

Feb 17, 2026

APPLICATION FILING RECEIPT MAILED

SN ASSIGNED FOR SECT 66A APPL FROM IB

Feb 12, 2026

SN ASSIGNED FOR SECT 66A APPL FROM IB

DIAGUM

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