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The patent EP3453806 was granted to ISO Chemie on Oct 11, 2023. The application was filed on Sep 1, 2017 under application number EP18187767A. 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 |
|---|---|---|---|
| TREMCO CPG GERMANY | Sep 30, 2020 | HANNKE BITTNER & PARTNER MBB REGENSBURG | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0072955 |
| DESCRIPTION | EP1936246 |
| DESCRIPTION | EP2990551 |
| DESCRIPTION | EP2990553 |
| OPPOSITION | DE102017105323 |
| OPPOSITION | DE19641415 |
| OPPOSITION | DE202011000091U |
| OPPOSITION | DE202012005049U |
| OPPOSITION | DE202012101990U |
| OPPOSITION | DE202012104454U |
| OPPOSITION | DE202013100308U |
| OPPOSITION | EP1983121 |
| OPPOSITION | EP2620565 |
| OPPOSITION | EP2666947 |
| OPPOSITION | EP2990552 |
| OPPOSITION | EP3375597 |
| SEARCH | DE202013100308U |
| SEARCH | EP2620565 |
| SEARCH | EP2990552 |
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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Description
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Sep 14, 2023
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Decision to grant a European patent
Search/Exam
Nov 18, 2019
(Electronic) Receipt
Search/Exam
Nov 18, 2019
English translation of the claims
Search/Exam
Nov 18, 2019
Filing of the translations of the claims
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French translation of claims
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Nov 18, 2019
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Oct 11, 2019
Text intended for grant (clean copy)
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Oct 11, 2019
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(Electronic) Receipt
Search/Exam
Sep 12, 2019
Amended claims with annotations
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Sep 12, 2019
Amended description with annotations
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Sep 12, 2019
Claims
Search/Exam
Sep 12, 2019
Description
Search/Exam
Sep 12, 2019
Drawings
Search/Exam
Sep 12, 2019
Letter accompanying subsequently filed items
Search/Exam
Sep 12, 2019
Aug 23, 2019
Annex to the communication
Search/Exam
Aug 23, 2019
Communication from the Examining Division
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Aug 16, 2019
Examination started
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Aug 2, 2019
(Electronic) Receipt
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Aug 2, 2019
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Amended claims with annotations
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Aug 2, 2019
Amendments received before examination
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Aug 2, 2019
Letter accompanying subsequently filed items
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Mar 18, 2019
Feb 13, 2019
Notification of forthcoming publication
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Nov 28, 2018
Refund of fees
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Nov 26, 2018
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European search opinion
Search/Exam
Nov 26, 2018
European search report
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Nov 26, 2018
Information on Search Strategy
Search/Exam
Nov 19, 2018
Search started
Search/Exam
Aug 7, 2018
Abstract
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Aug 7, 2018
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Claims
Search/Exam
Aug 7, 2018
Description
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Aug 7, 2018
Drawings
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Aug 7, 2018
Request for grant of a European patent
Search/Exam