Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6742569 | Hot melt application of solid plunger lubricant | — | 2004-06-01 |
| 5667917 | Electrode with conductive fillers | Philip W. Appel | 1997-09-16 |
| 4873161 | Positive paste with lead-coated glass fibers | Wally E. Rippel | 1989-10-10 |
| 4664992 | Composite battery separator | Wally E. Rippel | 1987-05-12 |
| 4603093 | Lead-acid battery | Wally E. Rippel | 1986-07-29 |
| 4570212 | Silicon controlled rectifier polyphase bridge inverter commutated with gate-turn-off thyristor | Wally E. Rippel | 1986-02-11 |
| 4415963 | FET commutated current-FED inverter | Wally E. Rippel | 1983-11-15 |
| 4353969 | Quasi-bipolar battery construction and method of fabricating | Wally E. Rippel | 1982-10-12 |
| 4319318 | Voltage reapplication rate control for commutation of thyristors | Wally E. Rippel | 1982-03-09 |
| 4275130 | Bipolar battery construction | Wally E. Rippel | 1981-06-23 |