The weekly litigation news digest is live. Subscribe now
The patent EP3594498 was granted to Pfeiffer Vacuum on Jan 5, 2022. The application was filed on Nov 6, 2019 under application number EP19207550A. 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 |
|---|---|---|---|
| CONCEPT LASER | Oct 5, 2022 | HAFNER & KOHL PARTMBB | ADMISSIBLE |
| GEBR BECKER | Oct 5, 2022 | MULLER | ADMISSIBLE |
| NIKON SLM SOLUTIONS | Oct 5, 2022 | SCHICKER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | DE102004044068 |
| OPPOSITION | DE102005008388 |
| OPPOSITION | DE102007046014 |
| OPPOSITION | DE102008015538 |
| OPPOSITION | DE102009019838 |
| OPPOSITION | DE102009052180 |
| OPPOSITION | DE102012207145 |
| OPPOSITION | DE102014106440 |
| OPPOSITION | DE102015111469 |
| OPPOSITION | DE102016116813 |
| OPPOSITION | DE102017129477 |
| OPPOSITION | DE102017212861 |
| OPPOSITION | DE102018200637 |
| OPPOSITION | DE10325077 |
| OPPOSITION | DE10327536 |
| OPPOSITION | DE1528881 |
| OPPOSITION | DE19819267 |
| OPPOSITION | DE19913950 |
| OPPOSITION | DE202006011858U |
| OPPOSITION | DE20305603U |
| OPPOSITION | DE20306448U |
| OPPOSITION | DE3245958 |
| OPPOSITION | DE69113616T |
| OPPOSITION | EP1724469 |
| OPPOSITION | EP2045358 |
| OPPOSITION | EP2835536 |
| OPPOSITION | EP3176527 |
| OPPOSITION | JP2000337284 |
| OPPOSITION | JP2007247421 |
| OPPOSITION | US2011029133 |
| OPPOSITION | US2018017084 |
| OPPOSITION | WO2007082640 |
| OPPOSITION | WO2015169496 |
| OPPOSITION | WO2017063662 |
| OPPOSITION | WO2019048140 |
| OPPOSITION | WO8500536 |
| OPPOSITION | WO9804835 |
| SEARCH | DE102017212861 |
| SEARCH | DE2559667 |
| SEARCH | DE69113616T |
| SEARCH | EP2045358 |
| SEARCH | EP3176527 |
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
Get instant alerts for new documents
May 21, 2024
May 21, 2024
May 21, 2024
May 21, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Feb 15, 2024
Means of redress
OPPO
Feb 15, 2024
Oct 23, 2023
Oct 23, 2023
Oct 23, 2023
Oct 19, 2023
Oct 12, 2023
Oct 12, 2023
Oct 12, 2023
Oct 12, 2023
Apr 6, 2023
Apr 6, 2023
Apr 6, 2023
Feb 27, 2023
Feb 27, 2023
Feb 27, 2023
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 14, 2022
Oct 14, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Jan 18, 2022
Dec 9, 2021
Decision to grant a European patent
Search/Exam
Sep 27, 2021
(Electronic) Receipt
Search/Exam
Sep 27, 2021
English translation of the claims
Search/Exam
Sep 27, 2021
Filing of the translations of the claims
Search/Exam
Sep 27, 2021
French translation of claims
Search/Exam
Sep 27, 2021
Letter accompanying subsequently filed items
Search/Exam
Jun 21, 2021
Jun 21, 2021
Jun 21, 2021
Intention to grant (signatures)
Search/Exam
Jun 21, 2021
Text intended for grant (clean copy)
Search/Exam
Jun 21, 2021
Apr 9, 2021
Apr 6, 2021
Annex to the communication
Search/Exam
Apr 6, 2021
Communication from the Examining Division
Search/Exam
Nov 30, 2020
Amended claims with annotations
Search/Exam
Nov 30, 2020
Amended description with annotations
Search/Exam
Nov 30, 2020
Claims
Search/Exam
Nov 30, 2020
Description
Search/Exam
Nov 30, 2020
Sep 15, 2020
Annex to the communication
Search/Exam
Sep 15, 2020
Communication from the Examining Division
Search/Exam
Sep 7, 2020
Examination started
Search/Exam
Jun 22, 2020
(Electronic) Receipt
Search/Exam
Jun 22, 2020
Jun 22, 2020
Amended claims with annotations
Search/Exam
Jun 22, 2020
Jun 22, 2020
Amended description with annotations
Search/Exam
Jun 22, 2020
Amendments received before examination
Search/Exam
Jun 22, 2020
Letter accompanying subsequently filed items
Search/Exam
Jan 20, 2020
Jan 8, 2020
Communication to designated inventor
Search/Exam
Jan 8, 2020
Communication to designated inventor
Search/Exam
Dec 18, 2019
Notification of forthcoming publication
Search/Exam
Dec 12, 2019
Dec 12, 2019
European search opinion
Search/Exam
Dec 12, 2019
European search report
Search/Exam
Dec 12, 2019
Information on Search Strategy
Search/Exam
Nov 28, 2019
Search started
Search/Exam
Nov 7, 2019
Request for accelerated (early) publication
Search/Exam
Nov 6, 2019
Abstract
Search/Exam
Nov 6, 2019
Nov 6, 2019
Claims
Search/Exam
Nov 6, 2019
Description
Search/Exam
Nov 6, 2019
Designation of inventor
Search/Exam
Nov 6, 2019
Drawings
Search/Exam
Nov 6, 2019
Request for grant of a European patent
Search/Exam