Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11578825 | Pipe joint seal for polymer piping | Peter Skinner, Jacob L. B. Morris | 2023-02-14 |
| 10786927 | Hole former with gasket locating features for cast manhole structures | David Allen Krueckeberg | 2020-09-29 |
| 10428512 | Manhole base assembly with internal liner and method of manufacturing same | James W. Skinner, Robert R. Slocum, John D. Kaczmarczyk, John M. Kurdziel | 2019-10-01 |
| 10214893 | Manhole base assembly with internal liner and method of manufacturing same | James W. Skinner, Robert R. Slocum, John M. Kaczmarczyk, John M. Kurdziel | 2019-02-26 |
| 10053850 | Manhole base assembly with internal liner and method of manufacturing same | James W. Skinner, Robert R. Slocum, John M. Kaczmarczyk | 2018-08-21 |
| 9803784 | Corrugated pipe gasket | Robert R. Slocum | 2017-10-31 |
| 9617722 | Manhole base assembly with internal liner and method of manufacturing same | James W. Skinner, Robert R. Slocum, John M. Kaczmarczyk | 2017-04-11 |
| 9365107 | Fuel tank vent apparatus | — | 2016-06-14 |
| 7147001 | Fuel-transfer system | — | 2006-12-12 |