Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11325811 | Mine shaft conveyance safety brake | Donald Todd Kennedy, Henry T. Laarakker | 2022-05-10 |
| 8166892 | Railroad gondola car structure and mechanism therefor | James W. Forbes, Dave Keats | 2012-05-01 |
| 8141726 | Railroad gondola car structure and mechanism therefor | James W. Forbes, Dave Keats | 2012-03-27 |
| 8132515 | Railroad gondola car structure and mechanism therefor | James W. Forbes, Dave Keats | 2012-03-13 |