LANGFUSE
LIVE

Serial Number

79405694

Owner

Langfuse GmbH

Attorney

Vivek Vaidya

Filing Date

Aug 7, 2024

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LANGFUSE Trademark

Serial Number: 79405694 • Registration: 7846659

LANGFUSE is a trademark filed by Langfuse GmbH on August 7, 2024. The trademark is classified under Class 9 (Computers & Electronics), Class 42 (Computer & Scientific), Class 45 (Legal & Security Services). The application is currently registered and active.

Owner Contact Info

Langfuse GmbH

Gethsemanestr. 4

Entity Type: 27

Trademark Details

Filing Date

August 7, 2024

Registration Date

July 1, 2025

Published for Opposition

May 13, 2025

Goods & Services

Software as a service, namely, software as a service (SAAS) services featuring software for monitoring, evaluating, and optimizing artificial intelligence applications including large language model applications through data collection, analysis, and visualization; platform as a service [PaaS], namely, platform as a service (PAAS) featuring computer software platforms for observability, evaluation, and quality control of artificial intelligence implementations including large language model implementations in software applications; platforms for artificial intelligence as software as a service [SaaS], namely, platform as a service (PAAS) featuring computer software platforms for tracking, analyzing, and improving the performance, cost-efficiency, and output quality of artificial intelligence models including large language models in production environments; software development, namely, software design and development of tools for artificial intelligence observability including large language model observability, monitoring, and performance optimization

Artificial intelligence software, namely, downloadable computer software using artificial intelligence (AI) for monitoring, tracking, and analyzing the performance, usage, and outputs of artificial intelligence models including large language models (LLMs) in software applications; interactive software based on artificial intelligence, namely, downloadable computer software using artificial intelligence (AI) for collecting and visualizing data related to artificial intelligence interactions including large language model interactions, response quality, and performance metrics; software, namely, downloadable computer software for observability, monitoring, and evaluation of artificial intelligence applications including large language model applications; software testing software, namely, downloadable computer software using artificial intelligence (AI) for testing, debugging, and evaluating artificial intelligence implementations including large language model implementations; software reliability software, namely, downloadable computer software using artificial intelligence (AI) for ensuring reliability and consistency of artificial intelligence outputs including large language model outputs in production environments; downloadable cloud computing software, namely, downloadable computer software using artificial intelligence (AI) for cloud-based monitoring and analysis of artificial intelligence applications including large language model applications across development and production environments; application software, namely, downloadable computer software using artificial intelligence (AI) for tracking, logging, and analyzing prompts, completions, and metadata from artificial intelligence interactions including large language model interactions

Software licensing

Filing History

FINAL DECISION TRANSACTION PROCESSED BY IB
Feb 12, 2026 FINO
FINAL DISPOSITION NOTICE SENT TO IB
Jan 27, 2026 FICS
FINAL DISPOSITION PROCESSED
Jan 27, 2026 FIMP
FINAL DISPOSITION NOTICE CREATED, TO BE SENT TO IB
Oct 1, 2025 FICR
NOTICE OF REGISTRATION CONFIRMATION EMAILED
Jul 1, 2025 NRCC
REGISTERED-PRINCIPAL REGISTER
Jul 1, 2025 R.PR
OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
May 13, 2025 NPUB
PUBLISHED FOR OPPOSITION
May 13, 2025 PUBO
NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
May 7, 2025 NONP
APPROVED FOR PUB - PRINCIPAL REGISTER
Apr 12, 2025 CNSA
TEAS/EMAIL CORRESPONDENCE ENTERED
Apr 11, 2025 TEME
CORRESPONDENCE RECEIVED IN LAW OFFICE
Apr 11, 2025 CRFA
TEAS RESPONSE TO OFFICE ACTION RECEIVED
Apr 11, 2025 TROA
REFUSAL PROCESSED BY IB
Apr 5, 2025 RFNT
NON-FINAL ACTION MAILED - REFUSAL SENT TO IB
Mar 20, 2025 RFCS
REFUSAL PROCESSED BY MPU
Mar 20, 2025 RFRR
NON-FINAL ACTION (IB REFUSAL) PREPARED FOR REVIEW
Feb 13, 2025 RFCR
NON-FINAL ACTION WRITTEN
Feb 12, 2025 CNRT
ASSIGNED TO EXAMINER
Feb 12, 2025 DOCK
APPLICATION FILING RECEIPT MAILED
Oct 17, 2024 MAFR
NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
Oct 17, 2024 NWOS
SN ASSIGNED FOR SECT 66A APPL FROM IB
Oct 3, 2024 REPR