Patent No. EP2749861 (titled "Test Device For The External Housing Of A Pump And Method For Testing An External Housing Of A Pump") was filed by Sulzer Management on Nov 19, 2013. The application was issued on Jan 16, 2019.

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 |
|---|---|---|
| KSB AKTIENGESELLSCHAFT | May 19, 2016 | BEHR |
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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