Patent No. EP4219120 (titled "Device And Method For Heating Plastic Pre-Forms With Spatially Resolved Temperature Detection") was filed by Krones on Aug 24, 2021. The application was issued on Nov 20, 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 |
|---|---|---|
| SIDEL PARTICIPATIONS | Aug 20, 2025 | SIDEL GROUP |
| KHS | Aug 19, 2025 | EISENFUHR SPEISER |
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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