Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6936170 | Methods and apparatus for biological treatment of aqueous waste | Wen Shieh, Shu Tai | 2005-08-30 |
| 6630067 | Methods and apparatus for biological treatment of aqueous waste | Wen Shieh, Shu Tai | 2003-10-07 |
| 5201431 | Fragrance bottle having removably affixed jewelry timepiece | Joshua D. Berger | 1993-04-13 |
| 5121614 | Jewelry item having rotatable multi-sided decoration bars regulated by biasing springs | — | 1992-06-16 |