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The patent EP3386638 was granted to Wacker Chemie on Mar 13, 2019. The application was filed on Nov 7, 2016 under application number EP16791403A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| NETZSCH TROCKENMAHLTECHNIK | Dec 9, 2019 | BEYER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE19824062 |
| DESCRIPTION | EP1754539 |
| DESCRIPTION | EP3027690 |
| DESCRIPTION | US7866582 |
| INTERNATIONAL-SEARCH-REPORT | DE102014211037 |
| INTERNATIONAL-SEARCH-REPORT | EP1754539 |
| OPPOSITION | DE102006048850 |
| OPPOSITION | DE102006048865 |
| OPPOSITION | DE102011102614 |
| OPPOSITION | DE102013215257 |
| OPPOSITION | DE102014211037 |
| OPPOSITION | DE19824062 |
| OPPOSITION | EP1754539 |
| OPPOSITION | WO2014180693 |
| OPPOSITION | WO2015127290 |
| OPPOSITION | WO2016202320 |
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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Jul 1, 2024
Jun 27, 2024
Annexes in respect of a client data request
Search/Exam
Jun 27, 2024
Letter accompanying subsequently filed items
Search/Exam
Jun 27, 2024
May 29, 2024
Refund of fees
Appeal
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 22, 2024
(Electronic) Receipt
Appeal
May 22, 2024
May 22, 2024
Withdrawal of an appeal
Appeal
May 17, 2024
May 14, 2024
(Electronic) Receipt
Appeal
May 14, 2024
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Apr 29, 2024
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Oct 18, 2023
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(Electronic) Receipt
Appeal
Oct 13, 2023
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Reply to appeal
Appeal
Jun 16, 2023
Jun 12, 2023
(Electronic) Receipt
Appeal
Jun 12, 2023
Jun 12, 2023
Apr 6, 2023
Apr 6, 2023
Mar 31, 2023
(Electronic) Receipt
Appeal
Mar 31, 2023
Mar 31, 2023
Notice of appeal
Appeal
Feb 13, 2023
Feb 10, 2023
Feb 10, 2023
Feb 10, 2023
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Feb 10, 2023
Means of redress
OPPO
Feb 10, 2023
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Feb 10, 2023
Feb 10, 2023
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Nov 18, 2022
Refund of fees
OPPO
Nov 9, 2022
Oct 17, 2022
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Authorisation
OPPO
Sep 6, 2022
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May 21, 2019
Mar 25, 2019
Feb 14, 2019
Decision to grant a European patent
Search/Exam
Feb 13, 2019
Refund of fees
Search/Exam
Jan 29, 2019
(Electronic) Receipt
Search/Exam
Jan 29, 2019
English translation of the claims
Search/Exam
Jan 29, 2019
Filing of the translations of the claims
Search/Exam
Jan 29, 2019
French translation of claims
Search/Exam
Jan 29, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 16, 2018
Oct 16, 2018
Oct 16, 2018
Intention to grant (signatures)
Search/Exam
Oct 16, 2018
Text intended for grant (clean copy)
Search/Exam
Oct 16, 2018
Sep 25, 2018
Examination started
Search/Exam
Sep 19, 2018
Aug 2, 2018
Jul 31, 2018
Communication to designated inventor
Search/Exam
Jul 31, 2018
Communication to designated inventor
Search/Exam
Jul 9, 2018
(Electronic) Receipt
Search/Exam
Jul 9, 2018
Jul 9, 2018
Amended claims with annotations
Search/Exam
Jul 9, 2018
Amendments received before examination
Search/Exam
Jul 9, 2018
General authorisation
Search/Exam
Jul 9, 2018
Matter concerning the application
Search/Exam
Jul 9, 2018
Request for entry into the European phase
Search/Exam
May 11, 2018
Copy of the international search report
Search/Exam
May 11, 2018
Copy of the international search report
Search/Exam
May 11, 2018
Published international application - A1
Search/Exam
Jun 21, 2017
ISR: cited documents
PCTISA
Jun 21, 2017
Jun 20, 2017
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Jun 20, 2017
Nov 21, 2016
Nov 16, 2016
Nov 16, 2016
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Nov 11, 2016
Nov 7, 2016
(Electronic) Receipt
PCTRO
Nov 7, 2016
Abstract
PCTRO
Nov 7, 2016
Claims
PCTRO
Nov 7, 2016
Description
PCTRO
Nov 7, 2016
Nov 7, 2016
Nov 7, 2016