Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8804463 | Seismic source/receiver probe for shallow seismic surveying | Peter Krumhansl | 2014-08-12 |
| 7813224 | Seismic source/receiver probe for shallow seismic surveying | Peter Krumhansl | 2010-10-12 |
| 6748809 | Load monitoring systems and methods | Douglas Hanna, Richard Madden | 2004-06-15 |