Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7975532 | Transportable apparatus and method for enabling determination of erodibility characteristics | Perry A. Taylor, Johannes L. Wibowo | 2011-07-12 |
| 6829957 | Apparatus and methods for determining self-weight consolidation and other properties of media | Daniel A. Leavell, Mickey D Blackmon | 2004-12-14 |
| 6571885 | Survey flag positioning method and apparatus | Philip G. Malone | 2003-06-03 |
| 6298925 | Method and apparatus for installing a small-scale groundwater sampling well | Stafford S. Cooper, Philip G. Malone | 2001-10-09 |
| 6116353 | Method and apparatus for installing a micro-well with a penetrometer | Daniel A. Leavell, Philip G. Malone, George Edward Robitaille | 2000-09-12 |
| 6109486 | Dry sand pluviation device | Levi Rodgers Coffing, Jr. | 2000-08-29 |
| 5819850 | Geotechnical grouting device and method | Daniel A. Leavell, Philip G. Malone | 1998-10-13 |
| 5698799 | Zone isolator module for use on a penetrometer | Daniel A. Leavell, Philip G. Malone | 1997-12-16 |
| 5358057 | Modular device for collecting multiple fluid samples from soil using a cone penetrometer | John F. Peters, Daniel A. Leavell, Stafford S. Cooper, Philip G. Malone, Richard Peterson | 1994-10-25 |