Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8030951 | Cathodic protection monitor | — | 2011-10-04 |
| 7884626 | Cathodic protection monitor | — | 2011-02-08 |
| 7633302 | Cathodic protection monitor | — | 2009-12-15 |
| 7562570 | Ultrasonic oil/water tank level monitor having wireless transmission means | — | 2009-07-21 |
| 6967589 | Gas/oil well monitoring system | — | 2005-11-22 |
| 5142569 | Apparatus for selectively enabling subscriber device to respond to ringing signal in dependence upon ringing cadence | Jonathan D. Luckey, Robert H. Kraemer, Scott S. Parker | 1992-08-25 |