Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5302071 | Dust containment system for bottom dumping railroad cars | — | 1994-04-12 |
| 5154271 | Telescopic chute | — | 1992-10-13 |
| 4946018 | Extensible and retractable chute | Chung-Chang Lee, David A. Gadsby | 1990-08-07 |
| 4760968 | Integrated dust containment system for rotary crusher/breakers and the like | — | 1988-08-02 |
| 4714097 | Dust containment system for bulk cargo containers | Robert S. Catan | 1987-12-22 |
| 4699187 | Dust control in hoppers | — | 1987-10-13 |
| 4655401 | Rotary car dumper with lump breaker apparatus | Samuel P. Insana, Edward Manning, Cornel Muhoray | 1987-04-07 |
| 4609321 | Rotary car dumper with dust collection system | — | 1986-09-02 |
| 4479749 | Rotary car dumper installation with integral dust collection | — | 1984-10-30 |