Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8616275 | Groundwater evaluation tools and methods of groundwater evaluation | Ronald J. Paulsen, David Bartholomew Chadwick, Christopher Smith | 2013-12-31 |
| 7711489 | Trident probe groundwater exchange system | David Bartholomew Chadwick, Christopher Smith, Ronald J. Paulsen | 2010-05-04 |
| 7672795 | Method for sampling seepage | David Bartholomew Chadwick, Andrew E. Patterson | 2010-03-02 |
| 7424375 | Tidal seepage meter | David Bartholomew Chadwick, Andrew E. Patterson | 2008-09-09 |
| 6993437 | Tidal seepage meter | David Bartholomew Chadwick, Andrew E. Patterson | 2006-01-31 |