Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10436641 | Shutter assembly for calibration | Richard Higgins, Brian Lipp | 2019-10-08 |
| 4593885 | Portable balanced motion compensated lift apparatus | Donald J. Hackman, Leslie F. Nikodem | 1986-06-10 |
| 4448569 | Lift sling emplacement device | Donald J. Hackman, Robert L. Wernli, Carl S. Albro | 1984-05-15 |
| 4433633 | Controlled gas generator system | Donald J. Hackman, John R. Myers, Robert T. Hoffman | 1984-02-28 |
| 4404170 | Instantaneous start and stop gas generator | Donald J. Hackman, Robert T. Hoffman, Dale G. Uhler | 1983-09-13 |
| 4217717 | Automatic weapon simulator | Michael P. Canty, Donald J. Hackman, Jeremy M. Harris, Robert W. Mowery, George R. Riley +1 more | 1980-08-19 |