Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5089144 | Filter condition indicator having moveable sensor and aggregate flow counter | Marty M. Zoerner | 1992-02-18 |
| 4757542 | Speech synthesizer method and apparatus | John R. Neahr, II, Arthur R. McKendry, Darrel A. Dolph | 1988-07-12 |