Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5626744 | Pressure sensitive extended life filter | — | 1997-05-06 |
| 5244525 | Methods for bonding, cutting and printing polymeric materials using xerographic printing of IR absorbing material | Paul J. Northey | 1993-09-14 |
| 5096532 | Ultrasonic rotary horn | Thomas David Ehlert, Norman R. Stegelmann | 1992-03-17 |
| 5087320 | Ultrasonic rotary horn having improved end configuration | — | 1992-02-11 |
| 4865855 | Antimicrobial absorbent food pad | Richard E. Hansen, Carl G. Rippl, David Midkiff | 1989-09-12 |