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The patent EP3429448 was granted to Hamberger Industriewerke on Nov 16, 2022. The application was filed on Mar 17, 2017 under application number EP17712094A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| MKW KUNSTSTOFFTECHNIK | Aug 16, 2023 | KILIAN KILIAN & PARTNER MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1199020 |
| DESCRIPTION | JP2012050683 |
| EXAMINATION | WO2013189469 |
| INTERNATIONAL-SEARCH-REPORT | CN101361640 |
| INTERNATIONAL-SEARCH-REPORT | JPH10234621 |
| INTERNATIONAL-SEARCH-REPORT | WO9962392 |
| OPPOSITION | EP1900699 |
| OPPOSITION | GB2482500 |
| OPPOSITION | JP2007331369 |
| OPPOSITION | US2012255106 |
| OPPOSITION | US6307180 |
| OTHER | GB2482500 |
| OTHER | US2012255106 |
| OTHER | US6307180 |
| OTHER | WO2013189469 |
| OTHER | WO9962392 |
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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Nov 29, 2022
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Decision to grant a European patent
Search/Exam
Oct 5, 2022
(Electronic) Receipt
Search/Exam
Oct 5, 2022
English translation of the claims
Search/Exam
Oct 5, 2022
Filing of the translations of the claims
Search/Exam
Oct 5, 2022
French translation of claims
Search/Exam
Oct 5, 2022
Letter accompanying subsequently filed items
Search/Exam
Jun 3, 2022
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Jun 3, 2022
Intention to grant (signatures)
Search/Exam
Jun 3, 2022
Text intended for grant (clean copy)
Search/Exam
Jun 3, 2022
May 9, 2022
(Electronic) Receipt
Search/Exam
May 9, 2022
Letter accompanying subsequently filed items
Search/Exam
May 9, 2022
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Observations by third parties
Search/Exam
Apr 22, 2022
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(Electronic) Receipt
Search/Exam
Apr 20, 2022
Amended claims with annotations
Search/Exam
Apr 20, 2022
Amended description with annotations
Search/Exam
Apr 20, 2022
Claims
Search/Exam
Apr 20, 2022
Description
Search/Exam
Apr 20, 2022
Letter accompanying subsequently filed items
Search/Exam
Apr 20, 2022
Mar 22, 2022
(Electronic) Receipt
Search/Exam
Mar 22, 2022
Amended claims with annotations
Search/Exam
Mar 22, 2022
Claims
Search/Exam
Mar 22, 2022
Letter accompanying subsequently filed items
Search/Exam
Mar 22, 2022
Mar 22, 2022
Oct 19, 2021
Oral proceedings: reply to date proposed
Search/Exam
Oct 14, 2021
Annex to the communication
Search/Exam
Oct 14, 2021
Summons to attend oral proceedings
Search/Exam
Aug 5, 2021
(Electronic) Receipt
Search/Exam
Aug 5, 2021
Letter accompanying subsequently filed items
Search/Exam
Aug 5, 2021
Apr 20, 2021
Annex to the communication
Search/Exam
Apr 20, 2021
Communication from the Examining Division
Search/Exam
Feb 23, 2021
Document concerning representation
Search/Exam
Feb 19, 2021
(Electronic) Receipt
Search/Exam
Feb 19, 2021
Amended claims with annotations
Search/Exam
Feb 19, 2021
Claims
Search/Exam
Feb 19, 2021
Letter accompanying subsequently filed items
Search/Exam
Feb 19, 2021
Oct 9, 2020
Annex to a communication
Search/Exam
Oct 9, 2020
Annex to the communication
Search/Exam
Oct 9, 2020
Communication from the Examining Division
Search/Exam
Sep 29, 2020
Examination started
Search/Exam
Feb 3, 2020
Sep 23, 2019
Sep 4, 2019
Non-patent literature filed by a third party
Search/Exam
Sep 4, 2019
Observations by third parties
Search/Exam
Sep 4, 2019
Patent document filed by a Third party
Search/Exam
Sep 4, 2019
Patent document filed by a Third party
Search/Exam
Sep 4, 2019
Patent document filed by a Third party
Search/Exam
Sep 4, 2019
Patent document filed by a Third party
Search/Exam
Jul 3, 2019
Priority search results
Search/Exam
Jul 3, 2019
Jun 27, 2019
Jan 29, 2019
Communication to designated inventor
Search/Exam
Jan 16, 2019
Letter concerning the inventor
Search/Exam
Jan 4, 2019
Dec 13, 2018
Dec 3, 2018
Letter which had not been notified
Search/Exam
Nov 5, 2018
Oct 24, 2018
Communication to designated inventor
Search/Exam
Oct 24, 2018
Communication to designated inventor
Search/Exam
Oct 24, 2018
Communication to designated inventor
Search/Exam
Oct 16, 2018
(Electronic) Receipt
Search/Exam
Oct 16, 2018
Oct 16, 2018
Amended claims with annotations
Search/Exam
Oct 16, 2018
Oct 16, 2018
Amended description with annotations
Search/Exam
Oct 16, 2018
Request for entry into the European phase
Search/Exam
Oct 3, 2018
Amendments received before examination
Search/Exam
Oct 3, 2018
Jul 25, 2018
Information on entry into European phase
Search/Exam
Oct 10, 2017
Oct 10, 2017
Oct 10, 2017
Sep 21, 2017
Copy of the international search report
Search/Exam
Sep 21, 2017
Copy of the international search report
Search/Exam
Sep 21, 2017
Published international application - A1
Search/Exam
Jun 20, 2017
Jun 20, 2017
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Mar 29, 2017
Mar 17, 2017
(Electronic) Receipt
PCTRO
Mar 17, 2017
Abstract
PCTRO
Mar 17, 2017
Claims
PCTRO
Mar 17, 2017
Description
PCTRO
Mar 17, 2017
Mar 17, 2017
Drawings
PCTRO
Mar 17, 2017