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The patent EP3876551 was granted to Daikin Industries on Feb 22, 2023. The application was originally filed on Oct 25, 2019 under application number EP19880887A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2004184068 |
| INTERNATIONAL-SEARCH-REPORT | JP2008217229 |
| INTERNATIONAL-SEARCH-REPORT | JP2008267765 |
| INTERNATIONAL-SEARCH-REPORT | JP2012238972 |
| INTERNATIONAL-SEARCH-REPORT | JP2015216667 |
| OPPOSITION | EP2940903 |
| OPPOSITION | JP2008217229 |
| OPPOSITION | JP2008267765 |
| OPPOSITION | JP2010032160 |
| OPPOSITION | JP2012014431 |
| SEARCH | US2010083356 |
| SEARCH | US2016215996 |
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
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Decision to grant a European patent
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Filing of the translations of the claims
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French translation of claims
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German translation of the claims
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Letter accompanying subsequently filed items
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Annexes in respect of a client data request
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Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Text intended for grant (clean copy)
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Examination started
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(Electronic) Receipt
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Amended claims with annotations
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Amended description with annotations
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Amendments received before examination
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Letter accompanying subsequently filed items
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European search opinion
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Information on Search Strategy
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Supplementary European search report
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Search started
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Aug 11, 2021
Notification of forthcoming publication
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Jun 2, 2021
Change to the inventor details
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(Electronic) Receipt
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Abstract
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Claims
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Description
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Designation of inventor
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Drawings
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Matter concerning the application
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May 27, 2021
Request for entry into the European phase
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Information on entry into European phase
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Copy of the international search report
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International publication pamphlet
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