Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8499610 | Test apparatus and method for safety valve | Seung-Jong Oh, Dong-wook Jerng, Jong Woon Park, Chang Hyun Kim | 2013-08-06 |
| 6394134 | Control valve trim for high-pressure fluid flow | — | 2002-05-28 |