OPNX
NOTIFICATION OF POSSIBLE OPPOSITION - PROCESSED BY IB
03/19/2026
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Official data from USPTO
LANGFUSE
Did you know this trademark is already registered in United States?
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Active USPTO registrationType: WordOffice: United States
Quick snapshot
LANGFUSE
ST13
US500000079405694Class
9, 42, 45
Filing
79405694
Registration
7846659
Risk and opportunity diagnosis
Executive reading for naming, filing, and monitoring decisions.
USPTO status
Active USPTO registration
Case type
Application and registration
Recorded events
25
Latest update
04/03/2026
Trademark type
Word
Nice classes
9, 42, 45
Filing date
08/07/2024
Registration date
07/01/2025
Expiration date
-
Complete case details
Structured fields from the responsible authority and the official record.
Status date
07/01/2025
Last transaction
04/03/2026
Responsible office
United States Patent and Trademark Office
Status code
700
Official register
Principal Register
Drawing code
4
Owner type
27
Owner location
DE
Examiner
STEIN, JAMES W
Law office
L70
Current location
FILE REPOSITORY (FRANCONIA)
Holders and representatives
Holders
Langfuse GmbH
Representatives
Vivek Vaidya Bend Law Group, PC
Technical classification
Nice Classes
Class 9Class 42Class 45
Vienna Codes
No Vienna codes available.
Goods and services
Class 9
Artificial intelligence softwaredownloadable computer software using artificial intelligence (AI) for monitoringtrackinganalyzing the performanceusageoutputs of artificial intelligence models including large language models (LLMs) in software applications; interactive software based on artificial intelligencedownloadable computer software using artificial intelligence (AI) for collecting and visualizing data related to artificial intelligence interactions including large language model interactionsresponse qualityperformance metrics; softwaredownloadable computer software for observabilitymonitoringevaluation of artificial intelligence applications including large language model applications; software testing softwaredownloadable computer software using artificial intelligence (AI) for testingdebuggingevaluating artificial intelligence implementations including large language model implementations; software reliability softwaredownloadable 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 softwaredownloadable 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 softwaredownloadable computer software using artificial intelligence (AI) for trackinglogginganalyzing promptscompletionsmetadata from artificial intelligence interactions including large language model interactions
Class 42
Software as a servicesoftware as a service (SAAS) services featuring software for monitoringevaluatingoptimizing artificial intelligence applications including large language model applications through data collectionanalysisvisualization; platform as a service PaaSplatform as a service (PAAS) featuring computer software platforms for observabilityevaluationquality control of artificial intelligence implementations including large language model implementations in software applications; platforms for artificial intelligence as software as a service SaaSplatform as a service (PAAS) featuring computer software platforms for trackinganalyzingimproving the performancecost-efficiencyoutput quality of artificial intelligence models including large language models in production environments; software developmentsoftware design and development of tools for artificial intelligence observability including large language model observabilitymonitoringperformance optimization
Class 45
Software licensing
Publications
History of USPTO decisions and trademark events.
25 publications found
OPNS
NOTIFICATION OF POSSIBLE OPPOSITION SENT TO IB
03/02/2026
OPNR
NOTIFICATION OF POSSIBLE OPPOSITION CREATED, TO BE SENT TO IB
03/02/2026
FINO
FINAL DECISION TRANSACTION PROCESSED BY IB
02/12/2026
FICS
FINAL DISPOSITION NOTICE SENT TO IB
01/27/2026
FIMP
FINAL DISPOSITION PROCESSED
01/27/2026
FICR
FINAL DISPOSITION NOTICE CREATED, TO BE SENT TO IB
10/01/2025
NRCC
NOTICE OF REGISTRATION CONFIRMATION EMAILED
07/01/2025
R.PR
REGISTERED-PRINCIPAL REGISTER
07/01/2025
NPUB
OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
05/13/2025
PUBO
PUBLISHED FOR OPPOSITION
05/13/2025
NONP
NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
05/07/2025
CNSA
APPROVED FOR PUB - PRINCIPAL REGISTER
04/12/2025
TEME
TEAS/EMAIL CORRESPONDENCE ENTERED
04/11/2025
CRFA
CORRESPONDENCE RECEIVED IN LAW OFFICE
04/11/2025
TROA
TEAS RESPONSE TO OFFICE ACTION RECEIVED
04/11/2025
RFNT
REFUSAL PROCESSED BY IB
04/05/2025
RFCS
NON-FINAL ACTION MAILED - REFUSAL SENT TO IB
03/20/2025
RFRR
REFUSAL PROCESSED BY MPU
03/20/2025
RFCR
NON-FINAL ACTION (IB REFUSAL) PREPARED FOR REVIEW
02/13/2025
CNRT
NON-FINAL ACTION WRITTEN
02/12/2025
DOCK
ASSIGNED TO EXAMINER
02/12/2025
MAFR
APPLICATION FILING RECEIPT MAILED
10/17/2024
NWOS
NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
10/17/2024
REPR
SN ASSIGNED FOR SECT 66A APPL FROM IB
10/03/2024
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