Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11325776 | Mass-flow hopper | Gregory Mehos | 2022-05-10 |
| 7967546 | System and method for handling containers of bulk particulate materials | John W. Pfeiffer, James E. Mothersbaugh | 2011-06-28 |
| 7850047 | System and method for transporting measured amounts of bulk materials | Curtis Wykoff | 2010-12-14 |
| 7476060 | Bulk material handling system and portable loading apparatus thereof | — | 2009-01-13 |
| 7384230 | System and method for handling containers of bulk particulate materials | John W. Pfeiffer, James E. Mothersbaugh | 2008-06-10 |
| 7231947 | System for pneumatically conveying bulk materials with improved discharge arrangement | James E. Mothersbaugh | 2007-06-19 |
| 7063493 | System and method for handling containers of bulk particulate materials | John W. Pfeiffer, James E. Mothersbaugh | 2006-06-20 |
| 6722402 | Apparatus for unloading bags containing bulk particulate materials | Richard W. Ambs | 2004-04-20 |
| 6062439 | Rotary valve with improved sealing means | Richard W. Ambs, Galen S. Ingram, Curtiss F. Wykoff | 2000-05-16 |