Patent No. EP3294548 (titled "Pane Having A Thermal-Radiation-Reflecting And Having A Fastening Or Sealing Element Attached Thereto") was filed by Saint Gobain on May 10, 2016. The application was issued on May 25, 2022.

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 |
|---|---|---|
| PILKINGTON GROUP | Feb 27, 2023 | MARSH |
| AGC GLASS EUROPE | Feb 22, 2023 | MULLER BORE & PARTNER PATENTANWALTE PARTG MBB |
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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