Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12122113 | Versatile sipe machine | Troy Allen Kost, Robert G. Otting, Logan M. Koepke | 2024-10-22 |
| 11961029 | Systems and methods for electronically monitoring employees to determine potential risk | Norman Allen Willox, JR. | 2024-04-16 |
| 11396778 | Telescopic drill rod | — | 2022-07-26 |
| 10975991 | Seismic conduit joint connector | — | 2021-04-13 |
| 10858896 | Telescopic drill rod | — | 2020-12-08 |
| 9851029 | Seismic conduit joint connector | — | 2017-12-26 |
| 8444186 | Seal and restraint system for plastic pipe with low friction coating | Mark A. Weih | 2013-05-21 |
| 8235427 | Self restrained ductile iron fitting | Randall Chinchilla | 2012-08-07 |
| 7815225 | Self restrained ductile iron fitting | Gerardo Darce, Randall Chinchilla, Bradford G. Corbett, Jr. | 2010-10-19 |
| 7618071 | Integral restraint system and method of manufacture for plastic pipe | Bradford G. Corbett, Jr. | 2009-11-17 |
| 7537248 | Combination seal and restraint system for plastic pipe | Bradford G. Corbett, Jr., Gerardo Darce, Randall Chinchilla | 2009-05-26 |
| 7410174 | Restraining mechanical joint gasket for ductile iron pipe | Bradford G. Corbett, Jr. | 2008-08-12 |
| 7328493 | Self restrained fitting for PVC and ductile iron pipe | Bradford G. Corbett, Jr. | 2008-02-12 |
| 7284310 | Method of manufacturing a seal and restraining system | Bradford G. Corbett, Jr., Gerardo Darce, Randall Chinchilla | 2007-10-23 |
| 7134204 | Integral restraint system and method of manufacture for plastic pipe | Bradford G. Corbett, Jr. | 2006-11-14 |
| 7125054 | Self restraining gasket and pipe joint | — | 2006-10-24 |
| D514671 | Pipe gasket | — | 2006-02-07 |
| 6974160 | Self restraining gasket and pipe joint | — | 2005-12-13 |
| 6945570 | Self restraining gasket and pipe joint | — | 2005-09-20 |
| 6488319 | Self restrained pressure gasket | — | 2002-12-03 |
| D350163 | Kaleidoscope | — | 1994-08-30 |