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IP Verse

Mineral Wool Insulation - EP2176183

The patent EP2176183 was granted to Knauf Insulation on Mar 4, 2020. The application was originally filed on Aug 1, 2008 under application number EP08786793A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP2176183

KNAUF INSULATION
Application Number
EP08786793A
Filing Date
Aug 1, 2008
Status
Granted And Under Opposition
Jan 31, 2020
Publication Date
Mar 4, 2020
External Links
Slate, Register, Google Patents

Patent Summary

A method for manufacturing mineral wool insulation with reduced formaldehyde emissions, comprising combining a reducing sugar, an inorganic ammonium salt, and a source of nitrogen in an aqueous solution, and applying the solution to hot mineral wool fibers to form a binder. The binder enables the fibers to bond together while minimizing formaldehyde release, resulting in a substantially formaldehyde-free insulation product.

Patent Family

Patent Family

Patent Oppositions (2)

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

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ROCKWOOLDec 3, 2020MEISSNER BOLTE PARTNERSCHAFT MBBADMISSIBLE
SAINT GOBAINDec 1, 2020RENARDADMISSIBLE

Patent Citations (17) New

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

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTEP0044614
INTERNATIONAL-SEARCH-REPORTEP1698598
INTERNATIONAL-SEARCH-REPORTUS2007027283
INTERNATIONAL-SEARCH-REPORTUS5977232
INTERNATIONAL-SEARCH-REPORTWO2007024020
OPPOSITIONEP0044614
OPPOSITIONGB770561
OPPOSITIONUS1801053
OPPOSITIONUS2006198954
OPPOSITIONUS2007027283
OPPOSITIONUS2965504
OPPOSITIONUS5977232
OPPOSITIONUS6706853
OPPOSITIONWO2007014236
OPPOSITIONWO2007024020
OPPOSITIONWO2008085461
OPPOSITIONWO2008089851

Dossier Documents

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