Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10439127 | Bender bar transducer having stacked encapsulated actuators | Michael Linley Fripp, Chen Li, Batakrishna Mandal | 2019-10-08 |
| 10280744 | Bender bar modal shaping | Michael Linley Fripp, Chen Li, Batakrishna Mandal | 2019-05-07 |
| 10024992 | Structural element for sonic tools and acoustic isolators | Chung Chang, Muralidhar Seshadri, Jean G. Saint Germain, Gary Kainer | 2018-07-17 |
| 9891336 | Acoustic isolator for downhole tools | Chung Chang, Abbas Arian, Gary Kainer, Arthur Cheng, Randall B. Jones | 2018-02-13 |
| 8733455 | Roller standoff assemblies | Farhat A. Shaikh, James C. Hunziker, Ron Parsley | 2014-05-27 |
| 7921913 | Vacuum insulated dewar flask | Borislav J. Tchakarov | 2011-04-12 |
| 6484801 | Flexible joint for well logging instruments | James E. Brewer, Borislav J. Tchakarov, James C. Hunziker | 2002-11-26 |
| 5731550 | Acoustic dipole well logging instrument | Robert A. Lester | 1998-03-24 |
| 5541889 | Borehole fluid replacement means and method | John F. Priest, Mathew G. Schmidt, Roger R. Steinsiek | 1996-07-30 |
| 5357481 | Borehole logging tool | Robert A. Lester, Donald J. Hilliker, Mathew G. Schmidt, Jose Casarsa, Gregory J. Wilkinson | 1994-10-18 |