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The patent EP3592812 was granted to Maston on Jul 28, 2021. The application was filed on Mar 6, 2018 under application number EP18717649A. 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 |
|---|---|---|---|
| PETER KWASNY | Apr 28, 2022 | SCHNEIDERS & BEHRENDT BOCHUM | ADMISSIBLE |
| EUROPEAN AEROSOLS | Apr 27, 2022 | ULLRICH & NAUMANN PARTG MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US7201191 |
| INTERNATIONAL-SEARCH-REPORT | EP0439026 |
| INTERNATIONAL-SEARCH-REPORT | US2005070638 |
| INTERNATIONAL-SEARCH-REPORT | US2008021144 |
| INTERNATIONAL-SEARCH-REPORT | US4420575 |
| INTERNATIONAL-SEARCH-REPORT | US7935183 |
| INTERNATIONAL-SEARCH-REPORT | WO2017098080 |
| INTERNATIONAL-SEARCH-REPORT | WO2017161367 |
| OPPOSITION | CN105907201 |
| OPPOSITION | CN106280930 |
| OPPOSITION | DE202006020389U |
| OPPOSITION | DE202009007410U |
| OPPOSITION | EP0439026 |
| OPPOSITION | US2012260824 |
| OPPOSITION | US4420575 |
| OPPOSITION | US4450253 |
| OPPOSITION | US4968735 |
| OPPOSITION | US6135165 |
| OPPOSITION | US6543490 |
| OPPOSITION | US7201191 |
| OPPOSITION | US8978935 |
| OPPOSITION | WO2007019431 |
| OPPOSITION | WO2007042642 |
| OPPOSITION | WO2017098080 |
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.
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Decision to grant a European patent
Search/Exam
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(Electronic) Receipt
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Jun 18, 2021
Filing of the translations of the claims
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French translation of claims
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German translation of the claims
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Letter accompanying subsequently filed items
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May 27, 2021
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(Electronic) Receipt
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May 18, 2021
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Intention to grant (signatures)
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Feb 19, 2021
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(Electronic) Receipt
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Amended claims with annotations
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Dec 18, 2020
Amended description with annotations
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Dec 18, 2020
Claims
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Dec 18, 2020
Description
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Dec 18, 2020
Letter accompanying subsequently filed items
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Annex to the communication
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Aug 21, 2020
Communication from the Examining Division
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Aug 13, 2020
Examination started
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Jul 27, 2020
(Electronic) Receipt
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Jul 27, 2020
Letter accompanying subsequently filed items
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Jul 27, 2020
Priority search results
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Communication to designated inventor
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Sep 12, 2019
(Electronic) Receipt
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Sep 12, 2019
Request for entry into the European phase
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Sep 10, 2019
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Jul 17, 2019
Information on entry into European phase
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Feb 15, 2019
Notification of election of EPO
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PCT demand form
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Copy of the international search report
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Sep 13, 2018
Published international application - A1
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Jun 6, 2018
ISR: cited documents
PCTISA
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Apr 11, 2018
Abstract
PCTISA
Apr 11, 2018
Claims
PCTISA
Apr 11, 2018
Description
PCTISA
Apr 11, 2018
Drawings
PCTISA
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