Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12422484 | Detecting welded relay contacts using electrical pulse | David Elmiger, Andrew E. Carlson, David M. Messersmith | 2025-09-23 |
| 12416672 | Detecting welded relay contacts using contact close time measurement | David Elmiger, Andrew E. Carlson, David M. Messersmith | 2025-09-16 |
| 12347636 | Systems and methods for detecting welded contacts in a switch system | David Elmiger, David M. Messersmith, Andrew E. Carlson | 2025-07-01 |
| 12224575 | Coordinating a sequence of opening and closing operations of poles in a solid-state circuit breaker | Aiman Kerim, Juerg Merki, Randall S. Langer, Andrew E. Carlson, David Elmiger | 2025-02-11 |
| 12198853 | Systems and methods for controlling contactor bounce | Andrew E. Carlson | 2025-01-14 |
| 12160098 | Hybrid circuit breaker with solid-state devices | Andrew E. Carlson, Randall S. Langer, David Elmiger, Aiman Kerim, James P. Miller | 2024-12-03 |
| 12119191 | Systems and methods for controlling a position of contacts in a relay device | David Elmiger, Patrick K. Duffy | 2024-10-15 |
| 11978606 | Systems and methods for modifying solid-state breaker operations based on load profiles | Aiman Kerim, Juerg Merki, Randall S. Langer, Andrew E. Carlson, David Elmiger | 2024-05-07 |
| 11901145 | Systems and methods for detecting welded contacts in an electromagnetic switch system | Andrew E. Carlson, David M. Messersmith, David Elmiger | 2024-02-13 |
| 11901140 | Hybrid circuit breaker with solid state devices | Andrew E. Carlson, Randall S. Langer, David Elmiger, Aiman Kerim, James P. Miller | 2024-02-13 |
| 11830693 | Predicting zero-crossings for point-on-wave (POW) switching techniques | Andrew E. Carlson, David M. Messersmith | 2023-11-28 |
| 11776778 | Industrial circuit breaker | Andrew E. Carlson | 2023-10-03 |
| 11676786 | Systems and methods for controlling contactor open time | Andrew E. Carlson, David M. Messersmith | 2023-06-13 |
| 11651918 | Sensing properties of switching devices using back EMF measurements | Andrew E. Carlson | 2023-05-16 |
| 11521815 | Detecting a position of an armature in an electromagnetic actuator | Andrew E. Carlson | 2022-12-06 |
| 11462345 | Systems and methods for controlling contactor bounce | Andrew E. Carlson | 2022-10-04 |
| 11417482 | Systems and methods for controlling a position of contacts in a relay device | David Elmiger, Patrick K. Duffy | 2022-08-16 |
| 11415629 | Relay coil drive circuit | Andrew E. Carlson | 2022-08-16 |
| 11355292 | Systems and methods for minimizing energy available to contacts during a fault | David Elmiger, Andrew J. Jaap, Randall S. Langer | 2022-06-07 |
| 9559689 | Vehicle control switch with capacitive touch redundancy actuation | Dana Kathryn Leland | 2017-01-31 |
| 4753042 | Magnetic weather strip for door | — | 1988-06-28 |