Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840346 | Apparatus for sealing a well blowout | Dewa N. Adnyana | 1989-06-20 |
| 4619320 | Subsurface well safety valve and control system | Dewa N. Adnyana | 1986-10-28 |
| 4515213 | Packing tool apparatus for sealing well bores | Dewa N. Adnyana | 1985-05-07 |
| 4472113 | Pumping by martensitic transformation utilization | — | 1984-09-18 |