Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11306849 | Separation-resistant pipe joint with enhanced ease of assembly | Russell J Huggins, Jay Derek Caston | 2022-04-19 |
| 10550973 | Separation-resistant pipe joint | Jay Derek Caston, Russell J Huggins | 2020-02-04 |
| 9194519 | Gasket for parabolic ramp self restraining bell joint | William H. Owen | 2015-11-24 |
| 9121532 | Gasket for parabolic ramp self restraining bell joint | William H. Owen, Jim Lambert | 2015-09-01 |
| 8925977 | Simplified low insertion force sealing device capable of self restraint and joint deflection | William H. Owen | 2015-01-06 |
| 8870188 | Gasket for parabolic ramp self restraining bell joint | William H. Owen, Jim Lambert | 2014-10-28 |
| 8544851 | Gasket for parabolic ramp self restraining bell joint | William H. Owen | 2013-10-01 |
| 8533926 | Method of coupling at least two conduits | William H. Owen | 2013-09-17 |
| 8528184 | Method of creating and maintaining a sealed interface between a spigot and bell | William H. Owen | 2013-09-10 |
| 8511691 | Simplified low insertion force sealing device capable of self restraint and joint deflection | William H. Owen | 2013-08-20 |
| 8511690 | Simplified low insertion force sealing device capable of self restraint and joint deflection | William H. Owen | 2013-08-20 |
| 7207606 | Mechanical pipe joint, gasket, and method for restraining pipe spigots in mechanical pipe joint bell sockets | William H. Owen, Daniel A. Copeland | 2007-04-24 |
| 7108289 | Restraining gasket for mechanical joints of pipes | Daniel A. Copeland | 2006-09-19 |
| 7093863 | Restraining gasket for mechanical joints of pipes | Daniel A. Copeland | 2006-08-22 |
| 6688652 | Locking device and method for securing telescoped pipe | Daniel A. Copeland | 2004-02-10 |
| 6502867 | Flanged pipe fitting | Daniel A. Copeland | 2003-01-07 |
| 5837975 | Corrugated strip, radiant heater element | Richard J. Dillard | 1998-11-17 |
| 5397873 | Electric hot plate with direct contact P.T.C. sensor | John C. Stoops, Randall Markum | 1995-03-14 |