Patent No. EP2758670 (titled "Pump Unit") was filed by Grundfos Holding on Sep 20, 2012. The application was issued on Oct 31, 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.
| Company | Opposition Date | Representative |
|---|---|---|
| HERBERT SAIER | Jul 31, 2019 | ROCHE |
| PROMINENT | Jul 31, 2019 | DR LANGFINGER & PARTNER |
| WILO | Jul 26, 2019 | MICHALSKI HUTTERMANN & PARTNER PATENTANWALTE MBB |
| KSB | Jul 12, 2019 | LAUFHUTTE |
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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