Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11119062 | Method and assembly for measuring diffusion in nanoporous media | Carl H. Sondergeld, Son T. Dang | 2021-09-14 |
| 10359379 | Methods of determining shale pore connectivity | Ali Ousseini Tinni, Carl H. Sondergeld | 2019-07-23 |
| 5134271 | Bar code system used in geophysical exploration | Carl H. Sondergeld | 1992-07-28 |
| 5109697 | Method of exploration for hydrocarbons | Keith K. Millheim, Houston B. Mount, II, Carl H. Sondergeld | 1992-05-05 |
| 5012674 | Method of exploration for hydrocarbons | Keith K. Millheim, Houston B. Mount, II, Carl H. Sondergeld | 1991-05-07 |
| 4996421 | Method an system of geophysical exploration | Carl H. Sondergeld | 1991-02-26 |
| 4964086 | Method for characterizing velocity estimates | Richard J. O'Connell, Carl H. Sondergeld | 1990-10-16 |
| 4933911 | Method for determining seismic velocities | Carl H. Sondergeld | 1990-06-12 |
| 4912979 | Method and apparatus for detecting and measuring elastic anisotropy | Carl H. Sondergeld, Richard M. Alford | 1990-04-03 |
| 4907206 | Method for estimating formation lithology | Kenneth E. Hanson | 1990-03-06 |
| 4831530 | Method for determining in-situ formation properties | — | 1989-05-16 |
| 4754439 | Means for obtaining shear wave velocities | Kenneth E. Hanson, Leon Thomsen, Carl H. Sondergeld | 1988-06-28 |