Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8657012 | Efficient open water riser deployment | Stephen P. Fenton, Ian Calder, Stewart Christie | 2014-02-25 |
| 5472021 | Nonspill bottled water replacement system with disposable seal member | Chein-Hwa Tsao | 1995-12-05 |
| 5456294 | Nonspill bottled water replacement system with a shielded disposable cap | Chein-Hwa Tsao, Boris Shteynberg, Cecil Davis | 1995-10-10 |
| 5363890 | Nonspill bottled water replacement system with disposable seal member | Michael Yeung, Chein-Hwa Tsao | 1994-11-15 |