Issued Patents 1989
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885098 | Sonic method for facilitating the removal of solid particles from a slurry | — | 1989-12-05 |
| 4883532 | Sonic method for facilitating the extraction of minerals from ore in a leachant | — | 1989-11-28 |
| 4874270 | Method and apparatus for reducing impedance or core material in sonic pile driving | — | 1989-10-17 |
| 4848486 | Method and apparatus for transversely boring the earthen formation surrounding a well to increase the yield thereof | — | 1989-07-18 |
| 4836299 | Sonic method and apparatus for installing monitor wells for the surveillance and control of earth contamination | — | 1989-06-06 |
| 4830758 | Sonic method and apparatus for winning minerals from liquid carriers | — | 1989-05-16 |
| 4824258 | Fluid driven screw type (moyno) sonic oscillator system | — | 1989-04-25 |
| 4817712 | Rod string sonic stimulator and method for facilitating the flow from petroleum wells | — | 1989-04-04 |
| 4815328 | Roller type orbiting mass oscillator with low fluid drag | — | 1989-03-28 |