Issued Patents All Time
Showing 51–65 of 65 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6957700 | Self-calibrated ultrasonic method of in-situ measurement of borehole fluid acoustic properties | — | 2005-10-25 |
| 6907349 | Acoustic signal processing method using array coherency | — | 2005-06-14 |
| 6748329 | Acoustic signal processing method using array coherency | — | 2004-06-08 |
| 6712138 | Self-calibrated ultrasonic method of in-situ measurement of borehole fluid acoustic properties | — | 2004-03-30 |
| 6661737 | Acoustic logging tool having programmable source waveforms | Laurence T. Wisniewski, Georgios L. Varsamis | 2003-12-09 |
| 6188961 | Acoustic logging apparatus and method | — | 2001-02-13 |
| 6125079 | System and method for providing dual distance transducers to image behind an acoustically reflective layer | James R. Birchak, James Masino, John W. Minear, Thomas Ritter | 2000-09-26 |
| 6102152 | Dipole/monopole acoustic transmitter, methods for making and using same in down hole tools | James Masino, James R. Birchak, John W. Minear, Thomas Ritter | 2000-08-15 |
| 6041861 | Method to determine self-calibrated circumferential cased bond impedance | Thomas E. Standley | 2000-03-28 |
| 6026913 | Acoustic method of connecting boreholes for multi-lateral completion | John W. Minear, James R. Birchak | 2000-02-22 |
| 6021093 | Transducer configuration having a multiple viewing position feature | James R. Birchak, James Masino, John W. Minear, Thomas Ritter | 2000-02-01 |
| 6002639 | Sensor configuration for nulling reverberations to image behind reflective layers | James R. Birchak, James Masino, John W. Minear, Thomas Ritter | 1999-12-14 |
| 5995447 | System and method for processing acoustic signals to image behind reflective layers | James R. Birchak, James Masino, John W. Minear, Thomas Ritter | 1999-11-30 |
| 5763773 | Rotating multi-parameter bond tool | James R. Birchak, James W. Stroud, John W. Minear | 1998-06-09 |
| 5678643 | Acoustic logging while drilling tool to determine bed boundaries | Carl A. Robbins, A. J. Mallett, John W. Minear, James R. Birchak, Eugene J. Linyaev | 1997-10-21 |