Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6554249 | Plug valve having seal segments with booster springs | Rick Wei-Shou Pang, Tep Ungchusri | 2003-04-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6554249 | Plug valve having seal segments with booster springs | Rick Wei-Shou Pang, Tep Ungchusri | 2003-04-29 |