Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5981100 | State of charge indicators for a battery | — | 1999-11-09 |
| 5580675 | Method and apparatus for indicating electric charge remaining in batteries based on electrode weight and center of gravity | — | 1996-12-03 |
| 5567541 | Method and apparatus for measuring the state of charge in a battery based on volume of battery components | — | 1996-10-22 |
| 4823294 | Single-hand computer keyboard | — | 1989-04-18 |
| 4667421 | Detachable heel for shoes and boots | — | 1987-05-26 |