Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8037822 | Warhead booster explosive lens | A. Russ Althof, Henri Y. Kim | 2011-10-18 |
| 7921775 | Warhead booster explosive lens | E. Russ Althof, Henri Y. Kim | 2011-04-12 |
| 4946391 | Electronic arithmetic learning aid with synthetic speech | Steve P. Weinstein | 1990-08-07 |
| 4403965 | Electronic teaching apparatus | — | 1983-09-13 |
| 4295181 | Module for an integrated circuit system | Richard R. Chang, Gene A. Frantz | 1981-10-13 |
| D254723 | Digital thermometer | William J. Lawrence, Eugene J. Sulek | 1980-04-15 |