Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6661348 | Apparatus for providing a visual indication of receipt of an electronic message | Lance Hall | 2003-12-09 |
| 6639875 | Time piece with changable color face | — | 2003-10-28 |
| 6633510 | Dual time zone time piece | — | 2003-10-14 |
| 6401076 | Wide area inventory control system | Harold H. Levine | 2002-06-04 |
| 5820379 | Computerized method of displaying a self-reading child's book | B. Grady Smith | 1998-10-13 |
| 5538430 | Self-reading child's book | B. Gary Smith | 1996-07-23 |
| 4703573 | Visual and audible activated work and method of forming same | John Montgomery, Earl H. Oliver, John L. Sigalos | 1987-11-03 |
| 4656469 | Activated work and method of forming same | Earl H. Oliver, John L. Sigalos | 1987-04-07 |
| 4392651 | Electronic logic game | — | 1983-07-12 |
| 4350340 | Electronic logic game method and apparatus | — | 1982-09-21 |