EP3620576

HANSOL PAPER
Application Number
EP19808950A
Filing Date
Jun 11, 2019
Status
Revoked
Feb 24, 2023
Grant Date
Sep 1, 2021
External Links
Slate, Register, Google Patents

Biblio Summary

The patent EP3620576B1 was granted on Sep 1, 2021 by Hansol Paper The patent is currently Revoked.

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 DateOpposition Status

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BILLERUDKORSNASJun 1, 2022ADMISSIBLE
KOEHLER INNOVATION & TECHNOLOGYJun 1, 2022ADMISSIBLE
SAPPI NETHERLANDS SERVICESMay 31, 2022ADMISSIBLE
STORA ENSO OYJMay 17, 2022ADMISSIBLE

Patent citations in opposition refer to prior patents or publications that may challenge the validity of a contested patent. These references help assess whether the invention is truly novel or overlaps with existing intellectual property.

Citation PhasePatent NumberPatent LinkCited Text
OppositionEP3342929B1
N/A
OppositionUS2004241475
N/A
OppositionUS2006286294
N/A
OppositionJP2013147001
N/A
OppositionGB2502241
N/A
OppositionWO2016195893
N/A
OppositionUS5837383
N/A
OppositionWO2007106885
N/A
OppositionWO2008037844
N/A
OppositionWO2012061704
N/A
OppositionWO2016170229
N/A
OppositionWO2008148934
N/A
OppositionGB1226461
N/A
OppositionUS2010009168
N/A
OppositionUS2010239763
N/A
OppositionEP3202979
N/A
OppositionUS2018058010
N/A

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Dossier Documents of the Patent

The dossier documents provide a comprehensive record of the patent’s prosecution history, including filings, correspondence, and decisions made by patent offices. These documents are crucial for understanding the patent’s legal journey and any challenges it may have faced during examination. It also includes the oppositions documents filed against the patent.