| 8429052 |
Method and system for providing employer-sponsored retirement plan |
Daniel P. Herr |
2013-04-23 |
| 8190777 |
Modular system for connecting multiple customer premises voice and data communications devices to a T1 data line |
Gary M. Willoughby, W. Stuart Venters |
2012-05-29 |
| 7433365 |
System architecture for linking channel banks of a data communication system |
Richard A. Burch, Neil M. Jensen, Dennis B. McMahan, Timothy David Rochell |
2008-10-07 |
| 7349420 |
Method and system for preserving channel bank provisioning information when unit location changes within multi-shelf equipment rack |
Neil M. Jensen, Dennis B. McMahan, Timothy David Rochell |
2008-03-25 |
| 7185115 |
Modular system for connecting multiple customer premises voice and data communications devices to a T1 data line |
Gary M. Willoughby, W. Stuart Venters |
2007-02-27 |
| 6584117 |
Deactivation of extended basic rate ISDN link |
— |
2003-06-24 |
| 6356556 |
Mechanism for automatically determining ISDN channel availability |
Michael Scott Sansom |
2002-03-12 |
| 6018529 |
Channel bank with individually removable processorless U-BRITE cards controlled by bank controller card |
— |
2000-01-25 |
| 5771236 |
Method for increasing |
Michael Scott Sansom |
1998-06-23 |
| 5598413 |
Four-wire, half-rate architecture with embedded differential delay compensation for extending range of basic rate |
Michael Scott Sansom, Lonnie S. McMillian, Roger W. Cain, Gary M. Willoughby |
1997-01-28 |