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The patent EP3148333 was granted to Maltaflor on Mar 3, 2021. The application was filed on May 22, 2015 under application number EP15729088A. 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 |
|---|---|---|---|
| HOLLMANN DIENSTLEISTUNGEN | May 4, 2021 | FEDER WALTER EBERT | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | CA2192430 |
| INTERNATIONAL-SEARCH-REPORT | FR2979188 |
| INTERNATIONAL-SEARCH-REPORT | US149243 |
| INTERNATIONAL-SEARCH-REPORT | US2004035162 |
| INTERNATIONAL-SEARCH-REPORT | US7074251 |
| OPPOSITION | DE1104536 |
| OPPOSITION | DE4424574 |
| OPPOSITION | US149243 |
| OPPOSITION | US6340482 |
| OPPOSITION | WO2013129723 |
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
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Jan 19, 2021
(Electronic) Receipt
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English translation of the claims
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Jan 19, 2021
Filing of the translations of the claims
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French translation of claims
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Jan 19, 2021
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Sep 21, 2020
Text intended for grant (clean copy)
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Sep 21, 2020
Jan 14, 2020
(Electronic) Receipt
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Abstract
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Abstract
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Amended claims with annotations
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Amended description with annotations
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Letter accompanying subsequently filed items
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Annex to the communication
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Aug 20, 2019
Communication from the Examining Division
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Jul 16, 2019
(Electronic) Receipt
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Jul 16, 2019
Abstract
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Abstract
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Jul 16, 2019
Amended claims with annotations
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Claims
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Jul 16, 2019
Description
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Jul 16, 2019
Letter accompanying subsequently filed items
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Jul 16, 2019
Jun 3, 2019
Annex to the communication
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Jun 3, 2019
Communication from the Examining Division
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May 27, 2019
Examination started
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Feb 26, 2019
Oct 9, 2018
(Electronic) Receipt
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Oct 9, 2018
Letter accompanying subsequently filed items
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Oct 9, 2018
Matter concerning the application
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Sep 15, 2017
Priority search results
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Abstract
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Abstract
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Amended claims with annotations
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Amended description with annotations
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Amended drawings with annotations
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Abstract
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Abstract
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Amended claims with annotations
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Amended description with annotations
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Amended drawings with annotations
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May 15, 2017
Letter concerning fees and payments
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May 15, 2017
Payment of fees and costs
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Mar 8, 2017
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Communication to designated inventor
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Dec 6, 2016
(Electronic) Receipt
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Dec 6, 2016
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Request for entry into the European phase
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Oct 7, 2016
Information on entry into European phase
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Jan 4, 2016
Dec 3, 2015
Copy of the international search report
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Dec 3, 2015
Copy of the international search report
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Dec 3, 2015
Published international application - A1
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Sep 29, 2015
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(Electronic) Receipt
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Abstract
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Claims
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Description
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May 22, 2015
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