Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10428512 | Manhole base assembly with internal liner and method of manufacturing same | James W. Skinner, Jimmy D. Gamble, John D. Kaczmarczyk, John M. Kurdziel | 2019-10-01 |
| 10214893 | Manhole base assembly with internal liner and method of manufacturing same | James W. Skinner, Jimmy D. Gamble, John M. Kaczmarczyk, John M. Kurdziel | 2019-02-26 |
| 10053850 | Manhole base assembly with internal liner and method of manufacturing same | James W. Skinner, Jimmy D. Gamble, John M. Kaczmarczyk | 2018-08-21 |
| 9803784 | Corrugated pipe gasket | Jimmy D. Gamble | 2017-10-31 |
| 9617722 | Manhole base assembly with internal liner and method of manufacturing same | James W. Skinner, Jimmy D. Gamble, John M. Kaczmarczyk | 2017-04-11 |