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The patent EP3829504 was granted to KCI Licensing on Mar 1, 2023. The application was filed on Jul 31, 2019 under application number EP19752407A. 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 |
|---|---|---|---|
| ESSITY HYGIENE AND HEALTH AKTIEBOLAG | Dec 1, 2023 | COHAUSZ & FLORACK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | GB1280631 |
| DESCRIPTION | US8058499 |
| DESCRIPTION | US8097272 |
| DESCRIPTION | US8664464 |
| INTERNATIONAL-SEARCH-REPORT | EP2189139 |
| INTERNATIONAL-SEARCH-REPORT | WO2007092350 |
| INTERNATIONAL-SEARCH-REPORT | WO2010135645 |
| INTERNATIONAL-SEARCH-REPORT | WO2013074825 |
| INTERNATIONAL-SEARCH-REPORT | WO2018226592 |
| OPPOSITION | DE2422975 |
| OPPOSITION | EP0610056 |
| OPPOSITION | US2010030171 |
| OPPOSITION | US5763331 |
| OPPOSITION | US8097272 |
| OPPOSITION | US9192521 |
| OPPOSITION | US9764055 |
| OPPOSITION | WO2010135645 |
| OPPOSITION | WO2018077872 |
| OPPOSITION | WO2018236648 |
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
Search/Exam
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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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Intention to grant (signatures)
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Text intended for grant (clean copy)
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Examination started
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Communication to designated inventor
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Amended description with annotations
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Request for entry into the European phase
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Information on entry into European phase
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Copy of the international search report
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Published international application - A1
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ISR: cited documents
PCTISA
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Abstract
PCTISA
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Annex
PCTISA
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Claims
PCTISA
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Description
PCTISA
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PCTISA
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