Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7399288 | Adjustable neck brace | — | 2008-07-15 |
| 6833001 | Controllable tourniquet | — | 2004-12-21 |
| 6425913 | Electrical heating correcting waist pad | — | 2002-07-30 |
| 6382407 | Eyeglass case adapted to be hung on the neck of the user | — | 2002-05-07 |
| 6367926 | Eye-wear with magnets | David Chao | 2002-04-09 |
| RE37545 | Auxiliary lenses for eyeglasses | — | 2002-02-12 |
| 6217601 | Adjustable hemostatic strap | — | 2001-04-17 |
| 6092896 | Eye-wear with magnets | David Chao | 2000-07-25 |
| 6012811 | Eyeglass frames with magnets at bridges for attachment | David Chao | 2000-01-11 |
| 5737054 | Auxiliary lenses for eyeglasses | — | 1998-04-07 |
| 5682222 | Spectacle frame having magnetic coupling | — | 1997-10-28 |
| 5627608 | Spectacle frame having resilient legs | — | 1997-05-06 |
| 5592243 | Spectacle frame having gear coupling | — | 1997-01-07 |
| 5568207 | Auxiliary lenses for eyeglasses | — | 1996-10-22 |