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Oriented Strand Board, Process For Production Of An Oriented Strand Board And Apparatus For Producing An Oriented Strand Board

Patent No. EP3648937 (titled "Oriented Strand Board, Process For Production Of An Oriented Strand Board And Apparatus For Producing An Oriented Strand Board") was filed by Kronospan Luxembourg on Jul 20, 2017. The application was issued on Sep 6, 2023.

Patent Summary

Oriented strand board (OSB) comprising a core layer formed from recycled wood flakes, wherein the core layer is bonded to surface layers of virgin wood strands. The OSB is produced by a process that includes shredding and sorting of recycled wood, flaking of the sorted wood into strands, classification of the strands into surface and core layer fractions, and pressing of the fractions into a finished OSB product.

Patent Family

Patent Family

Patent Oppositions (4)

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
FRITZ EGGERJun 6, 2024COHAUSZ & FLORACK
MEISSNER BOLTE PATENTANWALTE RECHTSANWALTE PARTNERSCHAFT MBBJun 6, 2024MEISSNER BOLTE PARTNERSCHAFT MBB
WEST FRASER EUROPEJun 6, 2024K&L GATES
FLOORINGJun 4, 2024KALKOFF & PARTNER PATENTANWALTE MBB

Dossier Documents

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EP3648937

KRONOSPAN LUXEMBOURG
Application Number
EP17742256A
Filing Date
Jul 20, 2017
Status
Granted And Under Opposition
Aug 4, 2023
Publication Date
Sep 6, 2023
External Links
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