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IP Verse

Method And Device For Regulating The Mixing Ratio Of Combustion Air And Combustion Gas In A Combustion Process - EP3663648

The patent EP3663648 was granted to Vaillant on Aug 31, 2022. The application was filed on Nov 26, 2019 under application number EP19211461A. The patent is currently recorded with a legal status of "Opposition Rejected".

EP3663648

VAILLANT
Application Number
EP19211461A
Filing Date
Nov 26, 2019
Status
Opposition Rejected
May 16, 2025
Publication Date
Aug 31, 2022
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Family

Patent Oppositions

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentativeOpposition Status
ROBERT BOSCHMay 31, 2023-WITHDRAWN

Patent Citations (18) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication Number
DESCRIPTIONDE3937290
DESCRIPTIONEP1154202
OPPOSITIONCN102032671
OPPOSITIONDE102010017195
OPPOSITIONDE19509704
OPPOSITIONDE69308820T
OPPOSITIONEP0152804
OPPOSITIONJP2006039481
OPPOSITIONJP2018204912
OPPOSITIONUS2010330516
OPPOSITIONUS4538979
OPPOSITIONUS5249954
OPPOSITIONUS5829962
OTHERDE202007017391U
OTHERJP2018025477
SEARCHDE19509704
SEARCHUS2010330516
SEARCHUS5829962

Dossier Documents

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

  • Date

    Description

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