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The patent EP3606818 was granted to Lufthansa Technik on Sep 15, 2021. The application was filed on Mar 29, 2018 under application number EP18714508A. 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 |
|---|---|---|---|
| AIRBUS OPERATIONS GMBHAIRBUS SASAIRBUS OPERATIONS SASAIRBUS OPERATIONS AIRBUS OPERATIONS SLU | Jun 14, 2022 | ISARPATENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2015155379 |
| INTERNATIONAL-SEARCH-REPORT | US2003057323 |
| INTERNATIONAL-SEARCH-REPORT | US2003200546 |
| INTERNATIONAL-SEARCH-REPORT | US2006238375 |
| INTERNATIONAL-SEARCH-REPORT | US2008136299 |
| INTERNATIONAL-SEARCH-REPORT | US2010218225 |
| INTERNATIONAL-SEARCH-REPORT | US2012025018 |
| INTERNATIONAL-SEARCH-REPORT | US2013160061 |
| INTERNATIONAL-SEARCH-REPORT | US2013187000 |
| INTERNATIONAL-SEARCH-REPORT | US2013248652 |
| INTERNATIONAL-SEARCH-REPORT | US5808661 |
| INTERNATIONAL-SEARCH-REPORT | US6087927 |
| INTERNATIONAL-SEARCH-REPORT | WO2015155379 |
| OPPOSITION | DE102010013330 |
| OPPOSITION | DE102011011704 |
| OPPOSITION | NL2013635B |
| OPPOSITION | US2003057323 |
| OPPOSITION | US2003200546 |
| OPPOSITION | US2006238375 |
| OPPOSITION | US2008136299 |
| OPPOSITION | US2010218225 |
| OPPOSITION | US2012025018 |
| OPPOSITION | US2013160061 |
| OPPOSITION | US2013187000 |
| OPPOSITION | US2013248652 |
| OPPOSITION | US4112818 |
| OPPOSITION | US5808661 |
| OPPOSITION | US6087927 |
| OPPOSITION | US6864805 |
| OPPOSITION | US7792189 |
| OPPOSITION | US9403603 |
| OPPOSITION | WO2008066722 |
| OPPOSITION | WO2015028810 |
| OPPOSITION | WO2015155379 |
| OPPOSITION | WO2015171718 |
| OPPOSITION | WO2016067168 |
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 18, 2025
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Sep 19, 2025
Refund of fees
Search/Exam
Sep 15, 2025
Sep 15, 2025
Sep 15, 2025
Aug 19, 2025
Aug 8, 2025
(Electronic) Receipt
Appeal
Aug 8, 2025
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Jun 26, 2025
(Electronic) Receipt
Appeal
Jun 26, 2025
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(Electronic) Receipt
Appeal
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Mar 31, 2025
(Electronic) Receipt
Appeal
Mar 31, 2025
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(Electronic) Receipt
Appeal
Nov 25, 2024
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(Electronic) Receipt
Appeal
Nov 22, 2024
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Reply to appeal
Appeal
Oct 15, 2024
Oct 10, 2024
(Electronic) Receipt
Appeal
Oct 10, 2024
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Reply to appeal
Appeal
Jul 23, 2024
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Jul 18, 2024
(Electronic) Receipt
Appeal
Jul 18, 2024
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Jul 17, 2024
(Electronic) Receipt
Appeal
Jul 17, 2024
(Electronic) Receipt
Appeal
Jul 17, 2024
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Claims
Appeal
Jul 17, 2024
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Jul 17, 2024
Request for correction
Appeal
Jul 17, 2024
May 23, 2024
May 23, 2024
May 17, 2024
(Electronic) Receipt
Appeal
May 17, 2024
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May 17, 2024
May 17, 2024
Notice of appeal
Appeal
May 13, 2024
(Electronic) Receipt
Appeal
May 13, 2024
May 13, 2024
Notice of appeal
Appeal
Mar 18, 2024
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Means of redress
OPPO
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Sep 28, 2021
Aug 19, 2021
Decision to grant a European patent
Search/Exam
Aug 4, 2021
(Electronic) Receipt
Search/Exam
Aug 4, 2021
English translation of the claims
Search/Exam
Aug 4, 2021
Filing of the translations of the claims
Search/Exam
Aug 4, 2021
French translation of claims
Search/Exam
Aug 4, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 12, 2021
Apr 12, 2021
Apr 12, 2021
Intention to grant (signatures)
Search/Exam
Apr 12, 2021
Text intended for grant (clean copy)
Search/Exam
Apr 12, 2021
Mar 23, 2021
Examination started
Search/Exam
May 18, 2020
(Electronic) Receipt
Search/Exam
May 18, 2020
May 18, 2020
Amended claims with annotations
Search/Exam
May 18, 2020
May 18, 2020
Amended description with annotations
Search/Exam
May 18, 2020
Amendments received before examination
Search/Exam
May 18, 2020
Letter accompanying subsequently filed items
Search/Exam
Jan 15, 2020
Nov 13, 2019
Nov 11, 2019
Communication to designated inventor
Search/Exam
Nov 11, 2019
Communication to designated inventor
Search/Exam
Oct 30, 2019
(Electronic) Receipt
Search/Exam
Oct 30, 2019
Priority search results
Search/Exam
Oct 30, 2019
Request for entry into the European phase
Search/Exam
Oct 22, 2019
Aug 19, 2019
Information on entry into European phase
Search/Exam
Oct 30, 2018
Oct 11, 2018
Copy of the international search report
Search/Exam
Oct 11, 2018
Copy of the international search report
Search/Exam
Oct 11, 2018
Published international application - A1
Search/Exam
May 11, 2018
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Apr 16, 2018
Apr 12, 2018
Mar 29, 2018
(Electronic) Receipt
PCTRO
Mar 29, 2018
Abstract
PCTRO
Mar 29, 2018
Claims
PCTRO
Mar 29, 2018
Description
PCTRO
Mar 29, 2018
Mar 29, 2018
Drawings
PCTRO
Mar 29, 2018