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Patent No. EP3433276 (titled "Early Intervention Methods To Prevent Or Ameliorate Toxicity") was filed by Seattle Childrens Hospital DBA Seattle Childrens Research Institute on Mar 22, 2017. The application was issued on Dec 22, 2021.

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 |
|---|---|---|
| BOULT WADE TENNANT | Sep 22, 2022 | BOULT WADE TENNANT |
| GILL JENNINGS & EVERY | Sep 22, 2022 | GILL JENNINGS & EVERY |
| PATENT BOUTIQUE | Sep 22, 2022 | - |
| GEDEON RICHTER PHARMA | Sep 20, 2022 | MAIWALD |
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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