Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7819010 | Device for testing ferromagnetic component walls without destruction of the same | Ronald B. Alers, John Boyle, Thomas Beuker | 2010-10-26 |
| 7663969 | Use of Lamb waves in cement bond logging | Xiao Ming Tang, Alexei Bolshakov, Joseph Gregory Barolak, Douglas J. Patterson, Vladimir Dubinsky +1 more | 2010-02-16 |
| 6502463 | Ultrasonic strain gage using a motorized electromagnetic acoustic transducer | Alfred V. Clark, Thanh Nguyen, Christopher Hehman, Kevin Michael Coakley | 2003-01-07 |
| 6382029 | Apparatus and method for utilizing electromagnetic acoustic transducers to non-destructively analyze in-service conductive materials | Rahmat A. Shoureshi, Michael T. Chenowith | 2002-05-07 |
| 6311558 | Ultrasonic strain gage using a motorized electromagnetic acoustic transducer | Alfred V. Clark, Thanh Nguyen, Christopher Hehman, Kevin Michael Coakley | 2001-11-06 |
| 6170336 | Electromagnetic acoustic transducer and methods of determining physical properties of cylindrical bodies using an electromagnetic acoustic transducer | Ward L. Johnson, Bertram A. Auld | 2001-01-09 |
| 6119522 | Electromagnetic acoustic transducer and methods of determining physical properties of cylindrical bodies using an electromagnetic acoustic transducer | Ward L. Johnson, Bertram A. Auld | 2000-09-19 |
| 5895856 | Electromagnetic acoustic transducer and methods of determining physical properties of cylindrical bodies using an electromagnetic acoustic transducer | Ward L. Johnson, Bertram A. Auld | 1999-04-20 |
| 5813280 | Acoustic resonator for measuring force | Ward L. Johnson, Bert A. Auld | 1998-09-29 |
| 5537876 | Apparatus and method for nondestructive evaluation of butt welds | Paul K. Davidson, Robert B. Thompson, Leigh R. Burns, Jr. | 1996-07-23 |
| 5154081 | Means and method for ultrasonic measurement of material properties | Robert B. Thompson, Samuel J. Wormley | 1992-10-13 |
| 4777824 | Electromagnetic acoustic transducer | Leigh R. Burns, Jr., Daniel T. MacLauchlan | 1988-10-18 |
| 4289030 | Nondestructive testing utilizing horizontally polarized shear waves | Robert B. Thompson, Carmine F. Vasile | 1981-09-15 |