Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10246302 | Auxiliary pumping unit | Anthony Frank Hamlett, Gary Hooper | 2019-04-02 |
| 7032371 | Synthetic fiber rope for an elevator | Rory Smith, John Fite, Harry Simpkins, Alan Koralek, A. Simeon Whitehill +2 more | 2006-04-25 |
| 5906382 | Refuse bag cart | — | 1999-05-25 |
| 5433294 | Geared elevator system | — | 1995-07-18 |