Patent No. EP4236147 (titled "Connectivity Fault Management (Cfm) In Networks With Link Aggregation Group Connections") was filed by Mala on Jun 11, 2007. The application was issued on May 29, 2024.

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 |
|---|---|---|
| CISCO SYSTEMS | Feb 28, 2025 | BARDEHLE PAGENBERG PARTNERSCHAFT MBB PATENTANWALTE RECHTSANWALTE |
| NOKIA SOLUTIONS AND NETWORKS | Feb 27, 2025 | COHAUSZ & FLORACK |
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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Feb 11, 2008