Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12360163 | Testing system that determines contact erosion in circuit breaker | Matthew Polk | 2025-07-15 |
| 12249469 | Circuit breaker having vacuum interrupters and single-phase control with magnetic actuators and associated method | Robert L. Hanna | 2025-03-11 |
| 12106910 | Switchgear system that determines contact erosion in circuit breaker | Matthew Polk | 2024-10-01 |
| 12100939 | Circuit breaker with terminal bushings having dynamic seal | — | 2024-09-24 |
| 12057683 | Circuit breaker with single phase control | — | 2024-08-06 |
| 12046431 | Medium-voltage switchgear system having single phase breaker control | Robert L. Hanna, Daniel C. Davis, Guillermo Alvelo, Jr., Rahul Pawar, Haoning Liang | 2024-07-23 |
| 12025665 | Switchgear ground and test device having interchangeable grounding bars | Robert L. Hanna | 2024-07-02 |
| 12027830 | Switchgear system having chain driven circuit breaker and associated methods | Robert L. Hanna, Daniel C. Davis, Guillermo Alvelo, Jr., Rahul Pawar, Haoning Liang | 2024-07-02 |
| 12027829 | Switchgear system having translatable and rotatable truck and associated method | Robert L. Hanna, Daniel C. Davis, Guillermo Alvelo, Jr., Rahul Pawar, Haoning Liang | 2024-07-02 |
| 11860230 | Testing system that determines contact erosion in circuit breaker | Matthew Polk | 2024-01-02 |
| 11855421 | Circuit breaker with indicator of breaker position | — | 2023-12-26 |
| 11804338 | Switchgear system that determines contact erosion in circuit breaker | Matthew Polk | 2023-10-31 |
| 11762020 | Switchgear ground and test device having interchangeable grounding bars | Robert L. Hanna | 2023-09-19 |
| 11757265 | Switchgear system having translatable and rotatable truck and associated method | Robert L. Hanna, Daniel C. Davis, Guillermo Alvelo, Jr., Rahul Pawar, Haoning Liang | 2023-09-12 |
| 11742638 | Switchgear system having contact arm assembly for switchgear circuit breaker | Robert L. Hanna, Daniel C. Davis, Guillermo Alvelo, Jr., Rahul Pawar, Haoning Liang | 2023-08-29 |
| 11742639 | Switchgear system having truck driven shutter mechanism | Robert L. Hanna, Daniel C. Davis, Guillermo Alvelo, Jr., Rahul Pawar, Haoning Liang | 2023-08-29 |
| 11735893 | Switchgear system having chain driven circuit breaker and associated methods | Robert L. Hanna, Daniel C. Davis, Guillermo Alvelo, Jr., Rahul Pawar, Haoning Liang | 2023-08-22 |
| 11735385 | Medium-voltage switchgear system having single phase breaker control | Robert L. Hanna, Daniel C. Davis, Guillermo Alvelo, Jr., Rahul Pawar, Haoning Liang | 2023-08-22 |
| 11387066 | Cutout mounted recloser | Robert L. Hanna, Luciano Di Maio | 2022-07-12 |
| 10971317 | Mechanical closing of a current interrupter | Robert L. Hanna, Luciano DiMaio | 2021-04-06 |
| 9426907 | Containment system for internal arc generated gasses | Harshavardhan M. Karandikar, Robert S. Karnbach, Rahul Pawar | 2016-08-23 |
| 8960815 | Switchgear enclosure with improved door assembly | Harshavardhan M. Karandikar, Radim Dolezal, Robert S. Karnbach, Rahul Pawar | 2015-02-24 |
| 8891229 | Locking structure for a truck of a switchgear drawout circuit breaker | Robert S. Karnbach, Rahul Pawar | 2014-11-18 |
| 8835782 | Contact arm assembly for switchgear circuit breaker having improved cooling fins and contact fingers to maximize heat rejection | Robert S. Karnbach, Rahul Pawar | 2014-09-16 |
| D659109 | Switchgear breaker compartment door | — | 2012-05-08 |