Patent No. EP2122177 (titled "Pump Unit") was filed by Grundfos Management on Feb 20, 2008. The application was issued on Nov 21, 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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