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EP2820405

SPEIR HUNTER
Application Number
EP13709988A
Filing Date
Mar 1, 2013
Status
Patent Maintained As Amended
May 20, 2022
Grant Date
Jun 22, 2022
External Links
Slate, Register, Google Patents

Biblio Summary

The patent EP2820405B2 was granted on Jun 22, 2022 by Speir Hunter The patent is currently Patent Maintained As Amended.

Patent Oppositions filed by Competitors

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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TRANSKOR K RD CENTREDec 30, 2019ADMISSIBLE

Patents Cited during Opposition New

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
OppositionUS2238072
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OppositionUS3745452
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OppositionUS4309659
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OppositionUS4538108
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OppositionUS4710708
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OppositionJPH0612358B
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OppositionUS5479100
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OppositionUS5623203
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OppositionUS6205859
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OppositionEP1103951
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OppositionUS6476610
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OppositionDE19782287
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OppositionUS6841994
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OppositionRU2264617
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OppositionDE102004035174
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OppositionWO2007068327
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OppositionUS2007195712
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OppositionEP1847829
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OppositionEP1791748
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OppositionUS7545140
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OppositionUS7574352
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OppositionRU88453U
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OppositionUS7688072
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OppositionUS2010102809
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OppositionUS2013027029
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OppositionUS4710712
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OppositionUS6586937
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OppositionUS7940061
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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.

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