Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6568649 | Trainline support bracket | — | 2003-05-27 |
| 5067777 | Air brake system for an articulated railroad car | — | 1991-11-26 |
| 4825980 | Railroad brake slack adjusters | — | 1989-05-02 |
| 4801288 | Railroad hand brake chain link stripper | Richard L. Cotterell | 1989-01-31 |
| 4796731 | Compression type truck/trailer brake slack adjuster | — | 1989-01-10 |
| RE32729 | Compression type railroad brake slack adjuster | — | 1988-08-09 |
| 4648661 | Empty and load valve for a railroad car brake system | Robert E. Campbell | 1987-03-10 |
| 4593797 | Compression type railroad brake slack adjuster | — | 1986-06-10 |
| 4590967 | Gladhand with built-in dirt protection plug | Michael R. Stoltenberg | 1986-05-27 |
| 4544132 | Combination gladhand and shutoff valve | Charles S. Allen, Arthur A. Berg, Michael R. Stoltenberg, Frederic Lissau | 1985-10-01 |
| 4474412 | Brake cylinder pressure maintaining valve | — | 1984-10-02 |
| 4423749 | Angle cock improvements | — | 1984-01-03 |