| D1052704 |
Pipe |
Seth Harding, Kris Sayre |
2024-11-26 |
| 8820800 |
Multi-wall corrugated pipe couplings and methods |
Gerald S. Sutton, James B. Goddard, John M. Kurdziel, David J. Kelley, Jeffrey J. Biesenberger |
2014-09-02 |
| 8820801 |
Multi-wall corrugated pipe couplings and methods |
Gerald S. Sutton, James B. Goddard, John M. Kurdziel, David J. Kelley, Jeffrey J. Biesenberger |
2014-09-02 |
| 8002497 |
Coupler for leaching chamber systems |
Kristen K. Hedstrom, Terrance H. Gray |
2011-08-23 |
| 7988438 |
Extrusion die vacuum seals |
Gerald S. Sutton, Randall A. Kolbet |
2011-08-02 |
| 7413382 |
Coupler for leaching chamber systems |
Kristen K. Hedstrom, Terrance H. Gray |
2008-08-19 |
| 7331582 |
Gasket |
William C. Andrick |
2008-02-19 |
| 7306264 |
Pipe having a water-tight in-line bell |
James B. Goddard |
2007-12-11 |
| 7160059 |
Adjustable angle coupler for leaching chamber systems |
Kristen K. Hedstrom, Terrance H. Gray |
2007-01-09 |
| 6948718 |
Gasket |
William C. Andrick |
2005-09-27 |
| 6592293 |
Adjustable angle coupler for leaching chamber systems |
Kristen K. Hedstrom, Terrance H. Gray |
2003-07-15 |