Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10359264 | Electronic detonator, electronic ignition module (EIM) and firing circuit for enhanced blasting safety | Gimtong Teowee | 2019-07-23 |
| 10006281 | Calibration of molded piezoelectric longitudinal charge coefficient of a pressure sensor for blasting operation | Gimtong Teowee, Bryan E. Papillon, Chris Munroe | 2018-06-26 |
| 6307920 | Microprocessor controlled dispatcher activated response identification system with telephone and radio frequency interface | James D. Thomson, Larry S. Howe | 2001-10-23 |
| 4455941 | Detonating cord and continuity verification system | Richard E. Walker, Robert A. Ziemke | 1984-06-26 |
| 4403143 | Detonating cord and continuity verification system | Richard E. Walker, Robert A. Ziemke | 1983-09-06 |
| 4318005 | Digital anti-theft locking circuit | Robert A. Ziemke | 1982-03-02 |
| 4188621 | Alarm system | Robert A. Ziemke | 1980-02-12 |