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The patent EP3137298 was granted to Taghleef Industries on Aug 10, 2022. The application was filed on Apr 29, 2015 under application number EP15723596A. 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 |
|---|---|---|---|
| TREOFAN GERMANY | Nov 28, 2018 | MAI BESIER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0026491 |
| DESCRIPTION | US2003211298 |
| DESCRIPTION | US2007248810 |
| DESCRIPTION | US2012282447 |
| DESCRIPTION | US6326068 |
| DESCRIPTION | US6623866 |
| DESCRIPTION | US6939602 |
| DESCRIPTION | WO2009042299 |
| DESCRIPTION | WO2011162882 |
| INTERNATIONAL-SEARCH-REPORT | US2009011183 |
| INTERNATIONAL-SEARCH-REPORT | US6939602 |
| INTERNATIONAL-SEARCH-REPORT | WO2011162882 |
| OPPOSITION | EP0612613 |
| OPPOSITION | EP0615839 |
| OPPOSITION | EP0618070 |
| OPPOSITION | EP0623463 |
| OPPOSITION | EP1591236 |
| OPPOSITION | EP2181843 |
| OPPOSITION | EP2502744 |
| OPPOSITION | US5972496 |
| OPPOSITION | US6326068 |
| OPPOSITION | US6455150 |
| OPPOSITION | US6682822 |
| OPPOSITION | US6902822 |
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.
Date
Description
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OPPO
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Decision to grant a European patent
Search/Exam
Jan 11, 2018
(Electronic) Receipt
Search/Exam
Jan 11, 2018
Filing of the translations of the claims
Search/Exam
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French translation of claims
Search/Exam
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German translation of the claims
Search/Exam
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Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
Search/Exam
Sep 25, 2017
Text intended for grant (clean copy)
Search/Exam
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Jul 28, 2017
Examination started
Search/Exam
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(Electronic) Receipt
Search/Exam
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Amended claims with annotations
Search/Exam
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Amended description with annotations
Search/Exam
Jan 26, 2017
Amendments received before examination
Search/Exam
Jan 26, 2017
Letter accompanying subsequently filed items
Search/Exam
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Communication to designated inventor
Search/Exam
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Notification of the recording of a change
Search/Exam
Nov 3, 2016
(Electronic) Receipt
Search/Exam
Nov 3, 2016
Letter accompanying subsequently filed items
Search/Exam
Nov 3, 2016
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(Electronic) Receipt
Search/Exam
Oct 27, 2016
Request for entry into the European phase
Search/Exam
Sep 9, 2016
Information on entry into European phase
Search/Exam
Nov 23, 2015
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Copy of the international search report
Search/Exam
Nov 5, 2015
Published international application - A1
Search/Exam
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Abstract
PCTISA
May 15, 2015
Annex
PCTISA
May 15, 2015
Claims
PCTISA
May 15, 2015
Description
PCTISA