Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8182353 | Bottom roller drive for deep soil mixing system | — | 2012-05-22 |
| 7883295 | Method and apparatus for forming an in situ subterranean soil cement structure having a cyclonic mixing region | — | 2011-02-08 |
| 7377726 | Method and apparatus for building reinforced sea walls and levees | — | 2008-05-27 |
| 6988856 | Large scale soil processing tool for use with a preformed sacrificial guide | — | 2006-01-24 |
| 6241426 | Method for forming an interconnected underground structure | — | 2001-06-05 |
| 6183166 | Method of centrifugally forming a subterranean soil-cement casing | — | 2001-02-06 |
| 5890844 | Single engine soil processing system | — | 1999-04-06 |
| 4958962 | Methods of modifying the structural integrity of subterranean earth situs | — | 1990-09-25 |
| 4793740 | Drilling system | — | 1988-12-27 |
| 4604003 | Method and apparatus for retensioning prestressed concrete members | Ronald A. Francoeur | 1986-08-05 |
| 4197828 | Apparatus for cutting concrete columns | — | 1980-04-15 |