Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6388575 | Addressable underground marker | — | 2002-05-14 |
| 6380857 | Self leveling underground marker | Ronald L. McWilliams, John Moss, William C. Wood | 2002-04-30 |
| 6097293 | Passive electrical marker for underground use and method of making thereof | Ronald L. McWilliams, John Moss, Kenneth D. Napps, Sean Nash, Paul R. Siglinger +1 more | 2000-08-01 |
| 5764633 | Method and system for transferring digital telephone circuits | David Bell, Mark W. Hastings, Paul R. Siglinger, James Thompson | 1998-06-09 |
| 5703928 | Probe for sampling differential electromagnetic fields | Paul R. Siglinger | 1997-12-30 |
| 5699048 | Omnidirectional passive electrical marker for underground use | — | 1997-12-16 |
| 5669779 | Method and apparatus for connecting to a circuit in a jack without interrupting the circuit | John Moss | 1997-09-23 |
| 5606592 | Method and apparatus for analyzing resistive faults on telephones cables | Paul R. Siglinger | 1997-02-25 |
| D376548 | Hand held audio test probe | Randy Denby, Ronald L. McWilliams, John Moss, Sean Nash, Paul R. Siglinger +1 more | 1996-12-17 |
| 4790001 | Methods of communicating over metallic conductors having multiple grounds | Douglas R. Connally | 1988-12-06 |