Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7487677 | Apparatus and methods for monitoring water consumption and filter usage | John Y. Chai, Derek Ko | 2009-02-10 |
| 7107838 | Apparatus and methods for monitoring water consumption and filter usage | John Y. Chai, Derek Ko | 2006-09-19 |
| 6748264 | Body fat analyzer with integral analog measurement electrodes | — | 2004-06-08 |
| 6473643 | Method and apparatus for measuring body fat | Frederick C. Cha | 2002-10-29 |