Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8177417 | Apparatus for continuous blending | Thomas Chirkot, Kiet C. Ly | 2012-05-15 |
| 7347613 | Apparatus for continuous blending | Thomas Chirkot, Kiet C. Ly | 2008-03-25 |
| 4821812 | Down hole drill improvement | — | 1989-04-18 |
| 4730682 | Erosion resistant rock drill bit | — | 1988-03-15 |