Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7198062 | Fluid control valve | Herbert L. Hoffman, Pat Parkin, Wen-Hwang Lin, Roy Hai-Tien Loh, Yeu-Chuan Hsia +9 more | 2007-04-03 |
| 6682413 | Fluid control valve | Herbert L. Hoffman, Pat Parkin, Wen-Hwang Lin, Roy Hai-Tien Loh, Yeu-Chuan Hsia +5 more | 2004-01-27 |