Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4909288 | System for filling bulk container from an overhead storage bin | Charles David Hill, Dean P. Muka, Ryland S. Beecham | 1990-03-20 |
| 4819700 | System for loading bulk containers with fluent material from overhead storage bin | Charles David Hill, Dean P. Muka, Ryland S. Beecham | 1989-04-11 |