Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10321756 | Method and apparatus of a versatile holder and stand | Feichu H. Chen | 2019-06-18 |
| 5304849 | Method and apparatus for automobile security system | Feichu H. Chen | 1994-04-19 |
| 5287596 | Hinge with adjustable stop and hold mechanism | Feichu H. Chen | 1994-02-22 |
| 5288260 | Optical fun device | Feichu H. Chen | 1994-02-22 |
| 5269500 | Method and apparatus of the conical spring | Feichu H. Chen | 1993-12-14 |
| 5220813 | Unified washing-drying machine | Feichu H. Chen | 1993-06-22 |
| 5135334 | Method and apparatus of water-saving irrigation system | Feichu H. Chen | 1992-08-04 |
| 4994763 | Universal voltage-controlled multivibrator | Feichu H. Chen | 1991-02-19 |
| 4918789 | Tripod clip | Feichu H. Chen | 1990-04-24 |
| 4897007 | Steady push pin | Feichu H. Chen | 1990-01-30 |