Patent No. EP3288817 (titled "Members For Sealing, Baffling, Or Reinforcing") was filed by Zephyros on Apr 28, 2016. The application was issued on Jul 28, 2021.

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 |
|---|---|---|
| HENKEL | Apr 26, 2022 | KBN |
| HENKEL | Apr 26, 2022 | PATENTANWALTE BAUER VORBERG KAYSER |
| SIKA TECHNOLOGY | Apr 12, 2022 | SIKA PATENT ATTORNEYS |
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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