Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5906293 | Method and apparatus for maintaining uniform mass flow of granular material out of a container | Charles R. Bird | 1999-05-25 |
| 5603359 | Method and apparatus for storing material within a container which is exposed to rain | — | 1997-02-18 |
| D365575 | Front end portion of an apparatus for distributing granular material within a container | — | 1995-12-26 |
| 5472117 | Flow facilitation and control system and related method | John William Marttila | 1995-12-05 |
| 5421379 | Method and apparatus for distributing granular material within a container | — | 1995-06-06 |
| 5356048 | Bulk storage tank with access panel | — | 1994-10-18 |