Patent No. EP2091312 (titled "Stackable Electronics Housing With Multi-Pin Connector Or Female Connector") was filed by Weidmller Interface on Jan 20, 2009. The application was issued on Jun 10, 2020.

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 |
|---|---|---|
| WAGO KONTAKTTECHNIK | Dec 20, 2017 | GRAMM |
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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