Patent No. EP3547845 (titled "Pet Food Compositions") was filed by Hills PET Nutrition on Dec 27, 2016. The application was issued on Mar 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.
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