Patent No. EP3052731 (titled "Spacer For Insulating Glazing Units") was filed by Saint Gobain on Aug 22, 2014. The application was issued on Jun 19, 2024.

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 |
|---|---|---|
| TECHNOFORM GLASS INSULATION HOLDING | Jan 10, 2019 | KRAMER BARSKE SCHMIDTCHEN PATENTANWALTE PARTG MBB |
| ENSINGER | Jan 8, 2019 | HOEGER |
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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