Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5119877 | Explosion suppression system | Robert A. Cortese | 1992-06-09 |
| 4799799 | Determining inert content in coal dust/rock dust mixture | Jack A. Ward, Jr. | 1989-01-24 |
| 4793710 | Method and apparatus for measuring surface density of explosive and inert dust in stratified layers | Henry E. Perlee | 1988-12-27 |