Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5490488 | Internal combustion engine intake manifold with integral EGR cooler and ported EGR flow passages | Piero Aversa, David Curtis Ives, Hajnal Minger, Philip R. Zeiser | 1996-02-13 |
| 5096010 | Subframe induction noise reduction side-branch reactive silencer | Philip R. Guys, Masumi Kawatsu, John D. Kostun | 1992-03-17 |
| 5010856 | Engine finger follower type rocker arm assembly | — | 1991-04-30 |
| 4712870 | Fresnell lens and filter for use with computers and the like | Donald Robinson | 1987-12-15 |
| 4534593 | Vehicle seat lumbar support insert and method of utilizing the same | — | 1985-08-13 |