Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5139374 | Trailer sensor for railroad hitch | Tom Baker | 1992-08-18 |
| 5076539 | Tank car botton valve | — | 1991-12-31 |
| 5059072 | Cushioned retractable hitch for railway cars | — | 1991-10-22 |
| 5015131 | Hitch retarder | Kenneth D. Schmidt | 1991-05-14 |
| 5004386 | Protective cover for railcar hitch | Kenneth D. Schmidt | 1991-04-02 |
| 4723879 | Elastomeric trailer hitch cushion for railway car | — | 1988-02-09 |
| 4618295 | Plenum chamber flow restrictor and check valve | Richard H. Dugge | 1986-10-21 |
| 4242966 | Railway car truck transom including a tubular bearing assembly | Robert K. Neff | 1981-01-06 |
| 4221397 | Trailer hitch head having jaws which bear all of the kingpin wear | — | 1980-09-09 |