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The patent EP2446065 was granted to Pyrotek on Feb 21, 2024. The application was filed on Jun 8, 2010 under application number EP10785623A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| HUTTENES ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRANKTER HAFTUNG | Sep 16, 2021 | EISENFUHR SPEISER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US1377374 |
| DESCRIPTION | US1519128 |
| DESCRIPTION | US1754788 |
| DESCRIPTION | US2262105 |
| DESCRIPTION | US4099965 |
| DESCRIPTION | US5405427 |
| DESCRIPTION | US5427602 |
| INTERNATIONAL-SEARCH-REPORT | US1476192 |
| INTERNATIONAL-SEARCH-REPORT | US4138245 |
| INTERNATIONAL-SEARCH-REPORT | US4790873 |
| OPPOSITION | US4138245 |
| OPPOSITION | WO2005049875 |
| SEARCH | US5427602 |
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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Oct 29, 2020
(Electronic) Receipt
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Oct 29, 2020
French translation of claims
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Oct 29, 2020
German translation of the claims
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Oct 29, 2020
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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(Electronic) Receipt
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Amended claims with annotations
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Amended description with annotations
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Claims
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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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(Electronic) Receipt
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Jun 28, 2019
Amended claims with annotations
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Amended description with annotations
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Jun 28, 2019
Claims
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Description
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Letter accompanying subsequently filed items
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(Electronic) Receipt
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Jun 4, 2019
Letter accompanying subsequently filed items
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Annex to the communication
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Feb 7, 2019
Communication from the Examining Division
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Jan 29, 2019
(Electronic) Receipt
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Jan 29, 2019
Amended claims with annotations
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Jan 29, 2019
Claims
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Jan 29, 2019
Letter accompanying subsequently filed items
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(Electronic) Receipt
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Nov 29, 2018
Letter accompanying subsequently filed items
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Annex to the communication
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Communication from the Examining Division
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(Electronic) Receipt
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Jul 5, 2018
Amended claims with annotations
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Amended description with annotations
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Letter accompanying subsequently filed items
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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Annex to the communication
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Jan 3, 2018
Communication from the Examining Division
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Dec 21, 2017
Examination started
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Aug 18, 2017
(Electronic) Receipt
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Amended claims with annotations
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Amended description with annotations
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Letter accompanying subsequently filed items
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European search opinion
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Feb 10, 2017
Information on Search Strategy
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Feb 10, 2017
Supplementary European search report
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Feb 2, 2017
Search started
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Refund of fees
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Aug 13, 2012
(Electronic) Receipt
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Aug 13, 2012
Letter accompanying subsequently filed items
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(Electronic) Receipt
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Request for entry into the European phase
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Dec 28, 2011
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Information on entry into European phase
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Apr 5, 2011
Dec 16, 2010
Copy of the international search report
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Dec 16, 2010
Published international application - A1
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