Patent No. EP3892310 (titled "Hybrid Silicone And Acrylic Adhesive Cover For Use With Wound Treatment") was filed by M Innovative Properties on Sep 14, 2016. The application was issued on Oct 29, 2025.

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 |
|---|---|---|
| PAUL HARTMANN | Jul 29, 2026 | PAUL HARTMANN PATENTS & LICENSING |
| CONVATEC | Jul 28, 2026 | D YOUNG |
| LOHMANN & RAUSCHER | Jul 23, 2026 | HERRMANN |
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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