Patent No. EP3207202 (titled "A Plastic Spacer Comprising A Layer With Overlapping Segments Of A Substantially Gas-Impermeable Material") was filed by Rolltech on Oct 12, 2015. The application was issued on Dec 6, 2023.

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 | Oct 30, 2019 | KRAMER BARSKE SCHMIDTCHEN 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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