Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8880298 | Control system for monitoring the flow of air in a high capacity column delivery device | Sean G. Callan | 2014-11-04 |
| 8838344 | Apparatus for high capacity stone delivery with concentric flow and enhanced nosecone for soil improvement | Sean G. Callan | 2014-09-16 |
| 8738240 | Method for high capacity stone delivery with concentric flow and enhanced nosecone for soil improvement | Sean G. Callan | 2014-05-27 |