Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7239154 | Soil penetrating electrode with conical taper | — | 2007-07-03 |
| 6963205 | Electrically measuring soil dry density | Dennis M. Anderson, Dave B. Straley, William Ehni, Darrell R. Word | 2005-11-08 |
| 5808443 | Battery charging method | — | 1998-09-15 |