Who owns the LANGFUSE trademark?

The LANGFUSE trademark is owned by Langfuse GmbH.

What is the serial number for LANGFUSE?

The USPTO serial number for LANGFUSE is 79405694.

What is the registration number for LANGFUSE?

LANGFUSE is registered under USPTO registration number 7846659.

LAN

USPTO Trademark Record

REGISTERED

LANGFUSE

Q: What class is the LANGFUSE trademark registered in?

The LANGFUSE trademark is registered in Class 009 (Electronics, software & scientific instruments), Class 042 (Scientific, technology & SaaS services), Class 045 (Legal, security & personal social services).

SN 79405694·Reg 7846659·Filed Aug 07, 2024

Owner Langfuse GmbH

Scientific, research, navigation, surveying, photographic, cinematographic, audiovisual, optical, weighing, measuring, signalling, detecting, testing, inspecting, life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; apparatus and instruments for recording, transmitting, reproducing or processing sound, images or data; recorded and downloadable multimedia files, computer software, blank digital or analogue recording and storage media; mechanisms for coin-operated apparatus; cash registers, calculating devices; computers and computer peripheral devices; diving suits, divers' masks, ear plugs for divers, nose clips for divers, gloves for divers, breathing apparatus for underwater swimming; fire-extinguishing apparatus.; 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.; Legal services; security services for the physical protection of tangible property and individuals; dating services, online social networking services; funerary services; babysitting.

LANGFUSE (Serial No. 79405694), Registration No. 7846659, is a registered US trademark filed on Aug 07, 2024 by Langfuse GmbH. This trademark covers Class 009 (Electronics, software & scientific instruments), Class 042 (Scientific, technology & SaaS services), Class 045 (Legal, security & personal social services).

early section 8: July 01, 2031

Mark Intelligence

LANGFUSE (Reg. #7846659) is a registered US trademark that has been protecting its owner, Langfuse GmbH, since 2024. The mark covers Class 009 (Electronics, software & scientific instruments), Class 042 (Scientific, technology & SaaS services) and Class 045 (Legal, security & personal social services) respectively. Goods and services include Scientific, research, navigation, surveying, photographic, cinematographic, audiovisual, optical, weighing, measuring, s.... The mark faced 4 opposition proceedings during prosecution.

FILED

Aug 07, 2024

SERIAL

79405694

REG#

7846659

REGISTERED

Jul 01, 2025

Owner

Applicant

Langfuse GmbH

Entity

GmbH (German)

Address

Gethsemanestr. 4, 10437 Berlin

Country

Attorney

NameVivek Vaidya

Law firm

Vivek Vaidya Bend Law Group, PC

Address

2181 Greenwich St., San Francisco, CA 94123, United States

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Filing Information

StatusREGISTERED

Filing DateAug 07, 2024

Serial Number79405694

Registration No.7846659

Registration DateJul 01, 2025

Status DateJul 01, 2025

Published for OppositionMay 13, 2025

Mark TypeStandard characters

Status DescriptionLive and registered

Filing Signals

FILED

2024

YEARS AGO

CLASSES

MADRID FILINGS

—

Opposed 4× during prosecution

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Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 009Electronics, software & scientific instruments

US codes: 021, 023, 026, 036, 038

Class 042Scientific, technology & SaaS services

US codes: 100, 101

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.

Class 045Legal, security & personal social services

US codes: 100, 101

Legal services; security services for the physical protection of tangible property and individuals; dating services, online social networking services; funerary services; babysitting.

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

Status History

25 events

NOTIFICATION OF POSSIBLE OPPOSITION - PROCESSED BY IB

Mar 19, 2026

NOTIFICATION OF POSSIBLE OPPOSITION - PROCESSED BY IB

NOTIFICATION OF POSSIBLE OPPOSITION SENT TO IB

Mar 02, 2026

NOTIFICATION OF POSSIBLE OPPOSITION SENT TO IB

NOTIFICATION OF POSSIBLE OPPOSITION CREATED, TO BE SENT TO IB

Mar 02, 2026

NOTIFICATION OF POSSIBLE OPPOSITION CREATED, TO BE SENT TO IB

FINAL DECISION TRANSACTION PROCESSED BY IB

Feb 12, 2026

FINAL DECISION TRANSACTION PROCESSED BY IB

FINAL DISPOSITION NOTICE SENT TO IB

Jan 27, 2026

FINAL DISPOSITION NOTICE SENT TO IB

FINAL DISPOSITION PROCESSED

Jan 27, 2026

FINAL DISPOSITION PROCESSED

FINAL DISPOSITION NOTICE CREATED, TO BE SENT TO IB

Oct 01, 2025

FINAL DISPOSITION NOTICE CREATED, TO BE SENT TO IB

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Jul 01, 2025

NOTICE OF REGISTRATION CONFIRMATION EMAILED

REGISTERED-PRINCIPAL REGISTER

Jul 01, 2025

REGISTERED-PRINCIPAL REGISTER

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

May 13, 2025

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

PUBLISHED FOR OPPOSITION

May 13, 2025

PUBLISHED FOR OPPOSITION

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

May 07, 2025

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Apr 12, 2025

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS/EMAIL CORRESPONDENCE ENTERED

Apr 11, 2025

TEAS/EMAIL CORRESPONDENCE ENTERED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Apr 11, 2025

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Apr 11, 2025

TEAS RESPONSE TO OFFICE ACTION RECEIVED

REFUSAL PROCESSED BY IB

Apr 05, 2025

REFUSAL PROCESSED BY IB

REFUSAL PROCESSED BY MPU

Mar 20, 2025

REFUSAL PROCESSED BY MPU

NON-FINAL ACTION MAILED - REFUSAL SENT TO IB

Mar 20, 2025

NON-FINAL ACTION MAILED - REFUSAL SENT TO IB

NON-FINAL ACTION (IB REFUSAL) PREPARED FOR REVIEW

Feb 13, 2025

NON-FINAL ACTION (IB REFUSAL) PREPARED FOR REVIEW

NON-FINAL ACTION WRITTEN

Feb 12, 2025

NON-FINAL ACTION WRITTEN

ASSIGNED TO EXAMINER

Feb 12, 2025

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Oct 17, 2024

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

APPLICATION FILING RECEIPT MAILED

Oct 17, 2024

APPLICATION FILING RECEIPT MAILED

SN ASSIGNED FOR SECT 66A APPL FROM IB

Oct 03, 2024

SN ASSIGNED FOR SECT 66A APPL FROM IB

LANGFUSE

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