Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7575153 | Transparent credit card processing | William Wisniewski, Eric Ison, Michael Schropp | 2009-08-18 |
| 5753877 | Circuit breaker terminal tubulator protection assembly for diverting discharged ionized gasses | Ronald Dale Hartzel, William David Munsch, Michael J. Erb | 1998-05-19 |
| 5193043 | Phase sensitivity | Kurt A. Grunert, John A. Wafer, Henry A. Wehrli, III, Lawrence M. Hapeman, Stephen A. Mrenna | 1993-03-09 |
| 4963846 | Trip interlock design | Kurt A. Grunert, Ronald A. Cheski, Michael Jerome Whipple, Melvin A. Carrodus, James Gerard Maloney | 1990-10-16 |
| 4650944 | Molded case circuit breaker with an improved operating mechanism having a pivot-transfer trip-free linkage | Joseph F. Changle | 1987-03-17 |
| 4644120 | Molded case circuit breaker with a movable lower electrical contact positioned by a torsion spring | — | 1987-02-17 |
| 4642431 | Molded case circuit breaker with a movable electrical contact positioned by a camming spring loaded clip | David L. Haggerty | 1987-02-10 |
| 4642430 | Molded case circuit breaker with an improved contoured cradle | — | 1987-02-10 |