Coated Particles Of Calcium Carbonate Having A High Specific Surface

Patent No. EP1812506 (titled "Coated Particles Of Calcium Carbonate Having A High Specific Surface") was filed by Imertech on Nov 9, 2005. The application was issued on Jan 18, 2017.

Patent Summary

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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 DateRepresentative
OMYAOct 18, 2017TIEFBRUNNER
SCHAEFER KALKOct 18, 2017MAI BESIER

Dossier Documents

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EP1812506

IMERTECH
Application Number
EP05811024A
Filing Date
Nov 9, 2005
Status
Revoked
Mar 27, 2020
Publication Date
Jan 18, 2017