Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6216648 | Internal combustion engine with pneumatically controlled variable exhaust valve | — | 2001-04-17 | $1,782,000 |
| 5337919 | Automatic dispensing system for prescriptions and the like | Pamela M. Spaulding, Kenneth M. Bueche | 1994-08-16 | |
| 5280309 | Single degree of freedom belt drive tensioning system for a plotter apparatus | Charles D. Zinsmeyer, Marlan L. Schmidt | 1994-01-18 | $522,000 |