Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10570603 | Dome stormwater chamber | Ronald R. Vitarelli, Michael Kuehn, David J. Mailhot | 2020-02-25 |
| 10428512 | Manhole base assembly with internal liner and method of manufacturing same | James W. Skinner, Jimmy D. Gamble, Robert R. Slocum, John D. Kaczmarczyk | 2019-10-01 |
| 10214893 | Manhole base assembly with internal liner and method of manufacturing same | James W. Skinner, Jimmy D. Gamble, Robert R. Slocum, John M. Kaczmarczyk | 2019-02-26 |
| 9982425 | Dome stormwater chamber | Ronald R. Vitarelli, Michael Kuehn, David J. Mailhot | 2018-05-29 |
| 8820801 | Multi-wall corrugated pipe couplings and methods | Gerald S. Sutton, William V. Shaffer, James B. Goddard, David J. Kelley, Jeffrey J. Biesenberger | 2014-09-02 |
| 8820800 | Multi-wall corrugated pipe couplings and methods | Gerald S. Sutton, William V. Shaffer, James B. Goddard, David J. Kelley, Jeffrey J. Biesenberger | 2014-09-02 |
| 8733405 | Corrugated pipe with outer layer | James B. Goddard | 2014-05-27 |
| 7690691 | Coupler for joining plastic and concrete pipe | — | 2010-04-06 |
| 7484535 | Corrugated pipe with outer layer | James B. Goddard | 2009-02-03 |
| 7052210 | Inlet collar for highway culverts | — | 2006-05-30 |
| 6572118 | Flexible seal member for non-metallic conduit to concrete manhole junction | Fouad M. Deeb, Michael R. Miller, James W. Skinner, Ronald W. Neuhaus | 2003-06-03 |