Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5355852 | Method to limit smoke and fire when loading a diesel engine | Myron L. Smith, Richard L. Evans, Harold Hostettler | 1994-10-18 |
| 4896090 | Locomotive wheelslip control system | Edgar T. Balch, Harold Hostettler | 1990-01-23 |