Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8333399 | Slidably adjustable fifth wheel hitch assembly for a vehicle and control system for the same | Andrea Brown, John David Fehring, Rudolf Gruber, Michael J. Eifert | 2012-12-18 |
| 5651660 | Dumper installations | — | 1997-07-29 |
| 5394976 | Barrel reclaimers | — | 1995-03-07 |
| 5017077 | Rail car dumpers | — | 1991-05-21 |
| 4685851 | Rail car tipplers and tippler installations | — | 1987-08-11 |
| 4671725 | Barge tipplers or dumpers | David A. Evans | 1987-06-09 |
| 4445608 | Bucket wheels and bucket wheel reclaimers | David A. Evans | 1984-05-01 |