Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5131692 | Pipe connector with threaded seal in nonthreaded cavity | — | 1992-07-21 | $2,652,000 |
| 4927192 | Pipe connector load element | Tep Ungchusri | 1990-05-22 | $3,416,000 |