Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7318800 | Pleating apparatuses | Richard C. Stoyell, Kenneth M. Williamson, Scott D. Hopkins, Stephen A. Geibel | 2008-01-15 |
| 7083564 | Pleating methods | Richard C. Stoyell, Kenneth M. Williamson, Scott D. Hopkins, Stephen A. Geibel | 2006-08-01 |
| 5690765 | Methods of assembling a filter | Richard C. Stoyell, Kenneth M. Williamson, Scott D. Hopkins, Stephen A. Geibel | 1997-11-25 |
| 5543047 | Filter with over-laid pleats in intimate contact | Richard C. Stoyell, Kenneth M. Williamson, Scott D. Hopkins, Stephen A. Geibel | 1996-08-06 |