Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6646218 | Multi-band spectral sorting system for light-weight articles | Duncan Campbell, Todd Hoffman, Cliff J. Leidecker | 2003-11-11 |
| 6410872 | Agricultural article inspection apparatus and method employing spectral manipulation to enhance detection contrast ratio | Duncan Campbell, James M. Ewan, Cliff J. Leidecker, Hooshmand M. Kalayeh | 2002-06-25 |
| 6225620 | Peach pit detection apparatus and method | Duncan Campbell, James M. Ewan, Cliff J. Leidecker | 2001-05-01 |
| 5791497 | Method of separating fruit or vegetable products | Duncan Campbell | 1998-08-11 |
| 5675416 | Apparatus and method for detecting and sorting plastic articles having a preferred axis of birefringence | Duncan Campbell, Carl D. Christy, Steven D. Lancaster | 1997-10-07 |
| 5443164 | Plastic container sorting system and method | Casey Walsh, Philip L. Hoffman, William S. Drummond | 1995-08-22 |
| 5419438 | Apparatus and method for sorting post-consumer articles according to PVC content | William S. Drummond | 1995-05-30 |
| 5315384 | Color line scan video camera for inspection system | Jack C. Heffington | 1994-05-24 |