Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6180198 | Multi-part sets of sheet material | — | 2001-01-30 |
| 5741447 | Method of printing onto pressure-sensitive record materials | — | 1998-04-21 |
| 5510311 | Carbonless copy material | Victor G. Atkinson | 1996-04-23 |
| 4398591 | Heat exchanger frame components | — | 1983-08-16 |
| 4372375 | Heat exchanger | — | 1983-02-08 |