| 10627281 |
Electro-optic liquid sensor enabling in-liquid testing |
Gregory Kopansky |
2020-04-21 |
| 10434523 |
Multistage separator assembly |
Keith A. Santeler, Stephen Showalter |
2019-10-08 |
| 10222251 |
Electro-optic liquid sensor enabling in-liquid testing having a light source providing a plurality of intensities for assessing an operational state of the sensor |
Gregory Kopansky |
2019-03-05 |
| D755066 |
Visual indicator with sensor |
Gregory Kopansky, George P. Birch, Michael John Knox |
2016-05-03 |
| 9316522 |
Visual indicator with sensor |
Gregory Kopansky, George P. Birch |
2016-04-19 |
| 9316524 |
Visual indicator with sensor |
Gregory Kopansky, George P. Birch, Michael John Knox |
2016-04-19 |
| 6653846 |
Multifunction circuit continuity and sensor tester |
— |
2003-11-25 |
| 4741022 |
Remote subscriber interaction system |
Ronald J. Chebra, Alan Eisenberg |
1988-04-26 |
| 4529971 |
Alarm loop supervision |
— |
1985-07-16 |
| 4528423 |
Remote subscriber terminal unit |
Ronald J. Chebra |
1985-07-09 |
| 4442320 |
Remote subscriber interaction system |
Ronald J. Chebra |
1984-04-10 |