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| Number | Title | Issue Date |
| 7391719 | Redundant network interface for ethernet devices A redundant network interface for ethernet devices is disclosed. The redundant network interface provides connections between one or more Ethernet devices and two or more independent networks. The redundant network interface device also tests an active primary Ether... | 06/24/2008 |
| 7185045 | Ethernet interface device for reporting status via common industrial protocols An Ethernet interface device, and associated system and method, for reporting the status information data of Ethernet devices through common industrial protocols. The Ethernet interface device provides operational connections between one or more Ethernet devices and... | 02/27/2007 |
