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The patent EP3609735 was granted to Rheinmetall Chempro on May 18, 2022. The application was filed on Apr 13, 2018 under application number EP18717622A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| KRAUSS MAFFEI WEGMANN | Feb 9, 2023 | FEDER WALTER EBERT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102008053152 |
| EXAMINATION | EP2925560 |
| INTERNATIONAL-SEARCH-REPORT | EP0566436 |
| INTERNATIONAL-SEARCH-REPORT | EP2650168 |
| INTERNATIONAL-SEARCH-REPORT | GB2481202 |
| INTERNATIONAL-SEARCH-REPORT | US9221361 |
| INTERNATIONAL-SEARCH-REPORT | WO2016126200 |
| OPPOSITION | AU2004208699 |
| OPPOSITION | CN105333045 |
| OPPOSITION | CN105774610 |
| OPPOSITION | DE102008053152 |
| OPPOSITION | DE102008063804 |
| OPPOSITION | DE102011075148 |
| OPPOSITION | DE102014102330 |
| OPPOSITION | DE102014102335 |
| OPPOSITION | DE1786247U |
| OPPOSITION | DE20202604U |
| OPPOSITION | DE2036744 |
| OPPOSITION | DE2511407 |
| OPPOSITION | DE2733287 |
| OPPOSITION | DE2838737 |
| OPPOSITION | DE4011963 |
| OPPOSITION | DE69220459T |
| OPPOSITION | EP0566436 |
| OPPOSITION | EP0764794 |
| OPPOSITION | EP1593542 |
| OPPOSITION | EP1680987 |
| OPPOSITION | EP2000352 |
| OPPOSITION | EP2113457 |
| OPPOSITION | EP2113677 |
| OPPOSITION | EP2444278 |
| OPPOSITION | EP2650168 |
| OPPOSITION | EP2813430 |
| OPPOSITION | FR2695696 |
| OPPOSITION | GB1077322 |
| OPPOSITION | GB1541736 |
| OPPOSITION | GB2481202 |
| OPPOSITION | JPH084816 |
| OPPOSITION | US1417744 |
| OPPOSITION | US2010156153 |
| OPPOSITION | US2010252712 |
| OPPOSITION | US2012038091 |
| OPPOSITION | US2012073884 |
| OPPOSITION | US2012098174 |
| OPPOSITION | US2016297332 |
| OPPOSITION | US3239207 |
| OPPOSITION | US3737155 |
| OPPOSITION | US4783038 |
| OPPOSITION | US5788185 |
| OPPOSITION | US5813649 |
| OPPOSITION | US7950618 |
| OPPOSITION | US8678465 |
| OPPOSITION | US9221361 |
| OPPOSITION | WO03076822 |
| OPPOSITION | WO2011107706 |
| OPPOSITION | WO2011150501 |
| OPPOSITION | WO2012066275 |
| OPPOSITION | WO2013041447 |
| OPPOSITION | WO2013090744 |
| OPPOSITION | WO2014085707 |
| OPPOSITION | WO2016126200 |
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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Dec 16, 2022
Authorisation
Search/Exam
Dec 16, 2022
Jun 1, 2022
Apr 26, 2022
Decision to grant a European patent
Search/Exam
Apr 8, 2022
(Electronic) Receipt
Search/Exam
Apr 8, 2022
English translation of the claims
Search/Exam
Apr 8, 2022
Filing of the translations of the claims
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Apr 8, 2022
French translation of claims
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Feb 24, 2022
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Intention to grant (signatures)
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Feb 24, 2022
Text intended for grant (clean copy)
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Feb 24, 2022
Feb 12, 2021
(Electronic) Receipt
Search/Exam
Feb 12, 2021
Amended claims with annotations
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Feb 12, 2021
Amended description with annotations
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Feb 12, 2021
Claims
Search/Exam
Feb 12, 2021
Description
Search/Exam
Feb 12, 2021
Letter accompanying subsequently filed items
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Feb 12, 2021
Feb 2, 2021
Annex to the communication
Search/Exam
Feb 2, 2021
Communication from the Examining Division
Search/Exam
Jan 21, 2021
Examination started
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Jul 15, 2020
Jul 13, 2020
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May 6, 2020
(Electronic) Receipt
Search/Exam
May 6, 2020
Annexes in respect of a client data request
Search/Exam
May 6, 2020
Letter accompanying subsequently filed items
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May 6, 2020
Apr 29, 2020
(Electronic) Receipt
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Apr 29, 2020
Apr 29, 2020
Amended claims with annotations
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Apr 29, 2020
Amendments received before examination
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Apr 29, 2020
Letter accompanying subsequently filed items
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Apr 1, 2020
Communication to designated inventor
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Mar 26, 2020
Letter concerning the inventor
Search/Exam
Jan 22, 2020
Dec 19, 2019
Dec 13, 2019
Letter which had not been notified
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Nov 20, 2019
Nov 18, 2019
Communication to designated inventor
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Nov 18, 2019
Communication to designated inventor
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Nov 18, 2019
Communication to designated inventor
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Oct 29, 2019
Oct 22, 2019
(Electronic) Receipt
Search/Exam
Oct 22, 2019
Request for entry into the European phase
Search/Exam
Aug 23, 2019
Information on entry into European phase
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Dec 10, 2018
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Notification of the recording of a change
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Dec 10, 2018
Notification of the recording of a change
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Dec 10, 2018
Notification of the recording of a change
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Nov 16, 2018
(Electronic) Receipt
PCTRO
Nov 16, 2018
Nov 16, 2018
Nov 7, 2018
Oct 18, 2018
Copy of the international search report
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Oct 18, 2018
Copy of the international search report
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Oct 18, 2018
Published international application - A1
Search/Exam
Jul 3, 2018
ISR: cited documents
PCTISA
Jul 3, 2018
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Apr 13, 2018
(Electronic) Receipt
PCTRO
Apr 13, 2018
Abstract
PCTRO
Apr 13, 2018
Claims
PCTRO
Apr 13, 2018
Description
PCTRO
Apr 13, 2018
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Drawings
PCTRO
Apr 13, 2018