Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7195181 | Disc for moving slide valve | Robert W. Steingass, David E. Kim | 2007-03-27 |
| 5638937 | Handrail drive system conversion | Lawrence V. Birney, Thomas Keller, Dean L. Jodry, Richard Alistair Balfour Stewart | 1997-06-17 |
| 4491200 | Locking mechanism for an elevator car door | Mark F. Welter, Dean L. Jodry | 1985-01-01 |