Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7335843 | Computer keyboard backlighting | Sam E. J. Chan, King Sum Chu, Randall Krafft, W. STEVE RECTOR, WILL R. HARWOOD | 2008-02-26 |
| 6871978 | Computer keyboard backlighting | Sam E. J. Chan, King Sum Chu, Randall Krafft | 2005-03-29 |
| 6765503 | Backlighting for computer keyboard | Sam E. J. Chan, King Sum Chu, Randall Krafft | 2004-07-20 |
| 6572871 | Pain treatment method and apparatus using heating wrap and analgesic cream | Randall Krafft | 2003-06-03 |
| 6322229 | Backlighting for computer keyboard | Sam E. J. Chan, King Sum Chu, Randall Krafft | 2001-11-27 |
| D380162 | Angel watch | Sam E. J. Chan | 1997-06-24 |