Patent No. EP2252404 (titled "Systems And Methods For Removing Finely Dispersed Particulate Matter From A Fluid Stream") was filed by Soane Energy on Feb 2, 2009. The application was issued on Dec 5, 2018.

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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