Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6857404 | Hydraulic engine valve actuator | Jennifer L. Liedtke | 2005-02-22 |
| 6739294 | Manifold for housing high-pressure oil in a camless engine | Jennifer L. Liedtke | 2004-05-25 |
| 6371410 | Emergency landing impact absorbing system for aircraft | Renee Cairo-Iocco, Eugene Fischer | 2002-04-16 |
| 5958229 | Electrolytic disinfectant system | George Filiopoulos | 1999-09-28 |
| 5070930 | Countergravity casting apparatus | John G. Kubisch, James B. Mercer | 1991-12-10 |
| 5062466 | Countergravity casting apparatus and method | John G. Kubisch, James B. Mercer, Wilmer G. Schaeff | 1991-11-05 |