Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4369850 | High pressure fluid jet cutting and drilling apparatus | — | 1983-01-25 |
| 4317492 | Method and apparatus for drilling horizontal holes in geological structures from a vertical bore | David Archibold Summers, H. Dean Keith | 1982-03-02 |
| 4265487 | High pressure water jet mining machine | — | 1981-05-05 |
| 4221271 | Water jet cutting nozzle transition section | — | 1980-09-09 |