Patent No. EP3740375 (titled "Method For Post-Processing A Part Obtained By Additive Manufacturing From A Plastic Material Powder") was filed by Chanel Parfums Beaut on Jan 9, 2019. The application was issued on Oct 27, 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.
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