Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5714712 | Explosive initiation system | David W. Ewick, Daniel P. Sutula, Jr., Brendan Welch, Willie B. Eicke, Jr. | 1998-02-03 |
| 5398611 | Low energy blasting initiation system, method and surface connection therefor | Richard Joseph Michna, J. Donaldson Thomas | 1995-03-21 |
| 5171935 | Low-energy blasting initiation system method and surface connection thereof | Richard Joseph Michna, J. Donaldson Thomas | 1992-12-15 |