Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9555444 | Acoustic transducer with impedance matching layer | George David Goodman | 2017-01-31 |
| 9401470 | Electrical contacts to a ring transducer | — | 2016-07-26 |
| 9363605 | Focused acoustic transducer | George David Goodman | 2016-06-07 |
| 9224938 | Piezoelectric element and method to remove extraneous vibration modes | — | 2015-12-29 |
| 9079221 | Acoustic transducer with impedance matching layer | George David Goodman | 2015-07-14 |
| 8910533 | Method for pressure compensating a transducer | — | 2014-12-16 |
| 7942064 | Method and apparatus for measurement of mechanical characteristics of a cement sample | — | 2011-05-17 |
| 7677104 | Acoustic transducer system for nondestructive testing of cement | John Jeffery Moon, Jr. | 2010-03-16 |
| 6941819 | Apparatus and method for determining the dynamic mechanical properties of a cement sample | Steven Cobb | 2005-09-13 |
| 6345535 | Apparatus and method for estimating the compressive strength of foam cement | Fred Sabins | 2002-02-12 |
| 6269684 | Dynamic fluid loss cell apparatus and method thereof | Fred Sabins | 2001-08-07 |
| 6151963 | Apparatus and method for evaluating the effectiveness of materials removal by a fluid | — | 2000-11-28 |
| 6112599 | Method and apparatus for measuring a cement sample using a single transducer assembly | — | 2000-09-05 |
| 6070465 | Free water measurement apparatus and method thereof | — | 2000-06-06 |
| 5992223 | Acoustic method for determining the static gel strength of a cement slurry | Fred Sabins | 1999-11-30 |
| 5874676 | Method and apparatus for acoustically investigating a casing with a swept frequency pulse | — | 1999-02-23 |
| 5595243 | Acoustic well cleaner | Mukul Sharma | 1997-01-21 |
| 5467320 | Acoustic measuring method for borehole formation testing | — | 1995-11-14 |
| 5357797 | Method and apparatus for correcting MWD porosity measurement | Michael Gärtner | 1994-10-25 |
| 5044462 | Focused planar transducer | — | 1991-09-03 |
| 4918669 | Method and apparatus for sonic dip measurement | Roland E. Chemali | 1990-04-17 |
| 4709357 | Method and apparatus for acoustically investigating a borehole casing cement bond | — | 1987-11-24 |