Patent No. EP2813201 (titled "Absorbent Article And Absorbent Core Forming Channels When Wet") was filed by The Procter & Gamble on May 7, 2014. The application was issued on Nov 1, 2017.

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 |
|---|---|---|
| ESSITY HYGIENE AND HEALTH | Jul 31, 2018 | HOFFMANN EITLE |
| KIMBERLY CLARK WORLDWIDE | Mar 22, 2018 | DEHNS |
| ONTEX BVBA | Mar 5, 2018 | ABTHORPE |
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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