Patent No. EP3897196 (titled "Use Of Expanded And Hydrophobic Popcorn To Produce Three-Dimensional Shaped Parts") was filed by Georg August Universitt Gttingen on Dec 10, 2019. The application was issued on Nov 1, 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 |
|---|---|---|
| SEEMANN & PARTNER PATENTANWALTE MBB | Jul 31, 2024 | SEEMANN & PARTNER PATENTANWALTE 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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