Patent No. EP2221569 (titled "Modular Cuboidal Passive Temperature Controlled Shipping Container") was filed by Minnesota Thermal Science on Jul 10, 2009. The application was issued on Jun 22, 2016.

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 |
|---|---|---|
| DGP INTELSIUS | Jan 16, 2017 | APPLEYARD LEES |
| VA-Q-TEC AG | Aug 25, 2016 | VON ROHR |
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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