Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8045565 | Method and apparatus for an environmentally hardened ethernet network system | Keith Anderson, Guy Chang, Larry G. Erdmann | 2011-10-25 |
| RE40827 | Two-port ethernet line extender | Kent A. Butler | 2009-07-07 |
| 7072407 | Combination power and full duplex data cable | — | 2006-07-04 |
| 6741612 | Two-port ethernet line extender | Kent A. Butler | 2004-05-25 |
| 6646546 | Multiple-port gigabit ethernet distribution switch | Kent A. Butler | 2003-11-11 |
| 5852785 | Secure access telephone extension system and method in a cordless telephone system | David Bartholomew, A. Ray Ivie | 1998-12-22 |
| 5818821 | Universal lan power line carrier repeater system and method | — | 1998-10-06 |
| 5530737 | Secure access telephone extension system and method | David Bartholomew, A. Ray Ivie | 1996-06-25 |
| 5319634 | Multiple access telephone extension systems and methods | David Bartholomew, A. Ray Ivie | 1994-06-07 |
| 5092835 | Brain and nerve healing power apparatus and method | Janet L. S. Schurig | 1992-03-03 |