Patent No. EP3223834 (titled "Probiotic And Prebiotic Compositions, And Methods Of Use Thereof For Modulation Of The Microbiome") was filed by Evelo Biosciences on Nov 25, 2015. The application was issued on Jul 12, 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 |
|---|---|---|
| HGF IP LIMITED | Feb 8, 2021 | HARRISON GODDARD FOOTE |
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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