Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5314030 | System for continuously guided drilling | Peter James Maloney | 1994-05-24 |
| 4998313 | Self-adjusting variable height gangway system | Sandra M. Lippka | 1991-03-12 |
| 4655082 | Mining machine having vibration sensor | — | 1987-04-07 |
| 4478148 | Missile delivered explosive sound system | Albert Applebaum, Albert S. Will, Samuel A. Humphrey, Frank C. McLean, Sylvan Wolf +2 more | 1984-10-23 |
| 4393949 | Rock boring apparatus | — | 1983-07-19 |
| 4388779 | Easy-to-open, pressure-resistant door assembly | — | 1983-06-21 |
| 4358160 | Air diversion and dust control system for longwall shearers | Fred N. Kissell, Terry L. Muldoon, William E. Schroeder, Jr. | 1982-11-09 |
| 4333400 | Two stage parachute fuze recovery system | John McNelia | 1982-06-08 |