Patent No. EP2088276 (titled "Insulation Profile Assembly Between Blind Frame And Leaf Frame Of A Window Or Door") was filed by Eduard Hueck on Jan 27, 2009. The application was issued on May 24, 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 |
|---|---|---|
| REYNAERS ALUMINIUM | Feb 22, 2018 | DONNE |
| SCHUCO | Feb 21, 2018 | SPECHT |
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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