Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7513715 | Subterranean barriers, methods, and apparatuses for forming, inspecting, selectively heating, and repairing same | Paul A. Sloan, John G. Richardson, Stephanie M. Walsh, Kevin M. Kostelnik | 2009-04-07 |
| 7278800 | Method of installing subsurface barrier | John G. Richardson, Kevin M. Kostelnik, Paul A. Sloan | 2007-10-09 |
| 7234895 | Methods for indication of at least one subsurface barrier characteristic and methods of use | John G. Richardson, Paul A. Sloan, Kevin M. Kostelnik | 2007-06-26 |
| 7172371 | Method of sealing casings of subsurface materials management system | John G. Richardson, Kevin M. Kostelnik, Paul A. Sloan | 2007-02-06 |
| 7160061 | Subterranean barriers including at least one weld | Paul A. Sloan, John G. Richardson, Stephanie M. Walsh, Kevin M. Kostelnik | 2007-01-09 |
| 7153061 | Method of in situ retrieval of contaminants or other substances using a barrier system and leaching solutions | Stephanie M. Walsh, John G. Richardson, John R. Dick, Paul A. Sloan | 2006-12-26 |
| 7121765 | Subsurface materials management and containment system | John G. Richardson, Kevin M. Kostelnik, Paul A. Sloan | 2006-10-17 |
| 7070359 | Microtunneling systems and methods of use | John G. Richardson, Kevin M. Kostelnik, Paul A. Sloan | 2006-07-04 |
| 7056063 | Apparatus for indication of at least one subsurface barrier characteristic | John G. Richardson, Paul A. Sloan, Kevin M. Kostelnik | 2006-06-06 |
| 7029203 | Subsurface materials management and containment system, components thereof and methods relating thereto | John G. Richardson, Kevin M. Kostelnik, Paul A. Sloan | 2006-04-18 |
| 6910829 | In situ retreival of contaminants or other substances using a barrier system and leaching solutions and components, processes and methods relating thereto | Stephanie M. Walsh, John G. Richardson, John R. Dick, Paul A. Sloan | 2005-06-28 |
| 6758634 | Subsurface materials management and containment system | John G. Richardson, Kevin M. Kosteinik, Paul A. Sloan | 2004-07-06 |