Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12281552 | Strain decomposition method | Timothy James Ulrich, II, James A. Ten Cate, Harvey Edwin Goodman | 2025-04-22 |
| 11079505 | Time-reversed nonlinear acoustics for downhole pressure measurements | Paul A. Johnson, Timothy James Ulrich, II, Pierre-Yves Le Bas, Harvey Edwin Goodman, Marcel Remillieux | 2021-08-03 |
| 11067711 | Time-reversed nonlinear acoustic downhole pore pressure measurements | Harvey Edwin Goodman, Timothy James Ulrich, II, Paul A. Johnson, Marcel Remillieux, Pierre-Yves Le Bas | 2021-07-20 |
| 11029435 | Downhole nonlinear acoustics measurements in rock formations using dynamic acoustic elasticity and time reversal | Harvey Edwin Goodman, Timothy James Ulrich, II, Peter Roberts, Marcel Remillieux, Paul A. Johnson +1 more | 2021-06-08 |
| 9453926 | System and method for investigating sub-surface features of a rock formation using compressional acoustic sources | Cung Vu, Christopher Skelt, Kurt Nihei, Paul A. Johnson, James A. Ten Cate +2 more | 2016-09-27 |
| 9360573 | System and method for generating 3D images of non-linear properties of rock formation using surface seismic or surface to borehole seismic or both | Cung Vu, Kurt Nihei, Paul A. Johnson, James A. Ten Cate, Pierre-Yves Le Bas +1 more | 2016-06-07 |
| 9223039 | System and method for generating micro-seismic events and characterizing properties of a medium with non-linear acoustic interactions | Cung Vu, Kurt Nihei, Paul A. Johnson, James A. Ten Cate, Pierre-Yves Le Bas +1 more | 2015-12-29 |
| 9110178 | System and method for investigating sub-surface features of a rock formation with acoustic sources generating conical broadcast signals | Cung Vu, Christopher Skelt, Kurt Nihei, Paul A. Johnson, James A. Ten Cate +2 more | 2015-08-18 |
| 9110179 | Integrated system for investigating sub-surface features of a rock formation | Cung Vu, Christopher Skelt, Kurt Nihei, Paul A. Johnson, James A. Ten Cate +2 more | 2015-08-18 |
| 9046620 | System and method for investigating sub-surface features and 3D imaging of non-linear property, compressional velocity VP, shear velocity VS and velocity ratio VP/VS of a rock formation | Cung Vu, Christopher Skelt, Kurt Nihei, Paul A. Johnson, James A. Ten Cate +2 more | 2015-06-02 |
| 8942063 | Data acquisition and processing system and method for investigating sub-surface features of a rock formation | Cung Vu, Kurt Nihei, Paul A. Johnson, James A. Ten Cate, Pierre-Yves Le Bas +1 more | 2015-01-27 |
| 8923092 | System and method for investigating sub-surface features of a rock formation with acoustic sources generating coded signals | Cung Vu, Kurt Nihei, Paul A. Johnson, James A. Ten Cate, Pierre-Yves Le Bas +1 more | 2014-12-30 |
| 8576661 | Device and method for imaging of non-linear and linear properties of formations surrounding a borehole | Paul A. Johnson, James A. TenCate, Pierre-Yves Le Bas, Cung Vu, Christopher Skelt | 2013-11-05 |
| 8553495 | Device and method for imaging of non-linear and linear properties of formations surrounding a borehole | Paul A. Johnson, James A. TenCate, Pierre-Yves Le Bas, Cung Vu, Christopher Skelt | 2013-10-08 |
| 8345509 | System and method to create three-dimensional images of non-linear acoustic properties in a region remote from a borehole | Cung Vu, Kurt Nihei, Denis P. Schmitt, Christopher Skelt, Paul A. Johnson +2 more | 2013-01-01 |
| 8289808 | System and method to estimate compressional to shear velocity (VP/VS) ratio in a region remote from a borehole | Cung Vu, Kurt Nihei, Denis P. Schmitt, Christopher Skelt, Paul A. Johnson +2 more | 2012-10-16 |
| 8116167 | Method and system for generating a beam of acoustic energy from a borehole, and applications thereof | Paul A. Johnson, James A. Ten Cate, Pierre-Yves Le Bas, Cung Vu, Kurt Nihei +2 more | 2012-02-14 |
| 6330827 | Resonant nonlinear ultrasound spectroscopy | Paul A. Johnson, James A. TenCate, Koen Van Den Abeele | 2001-12-18 |