Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6842697 | Method for downhole logging | Richard H. Clarke, William Peter Stuart-Bruges | 2005-01-11 |
| 6597633 | Method for electrolinetic downhole logging | Richard H. Clarke | 2003-07-22 |
| 6452395 | Enhanced detection method | Richard H. Clarke | 2002-09-17 |
| 6225806 | Electroseismic technique for measuring the properties of rocks surrounding a borehole | Richard H. Clarke | 2001-05-01 |
| 5903153 | Apparatus and method for detecting underground liquids | Richard H. Clarke | 1999-05-11 |
| 5170378 | Hydraulic impedance test method | David W. Mellor | 1992-12-08 |
| 5093811 | Fracture investigation by resonance sweeping technique | David W. Mellor | 1992-03-03 |