Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8113131 | System and method for controlling subsurface soil injection apparatus | Michael A. Allan, Charles T. Schiller, Frank V. Sances | 2012-02-14 |
| 7908982 | Subsurface soil injection apparatus with improved delivery device | Michael A. Allan, Charles T. Schiller, Frank V. Sances | 2011-03-22 |
| 7712423 | Subsurface soil injection apparatus with improved delivery device | Michael A. Allan, Charles T. Schiller, Frank V. Sances | 2010-05-11 |
| 7490564 | Subsurface soil injection apparatus with improved delivery device | Michael A. Allan, Charles T. Schiller, Frank V. Sances | 2009-02-17 |