Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9109701 | Pipe joint gasket and method of making same | — | 2015-08-18 |
| 9057467 | Pipe joint gasket and method of using same | Michael C. Keel | 2015-06-16 |
| 8490273 | Pipe joint gasket and method of using same | Michael C. Keel | 2013-07-23 |
| D620086 | Pipe gland | Jay Derek Caston | 2010-07-20 |
| D593642 | Pipe gland | Jay Derek Caston | 2009-06-02 |
| 7207606 | Mechanical pipe joint, gasket, and method for restraining pipe spigots in mechanical pipe joint bell sockets | William H. Owen, William W. Holmes, IV | 2007-04-24 |
| 7137653 | Centroidally twistable compression ring for pipe joints | — | 2006-11-21 |
| 7108289 | Restraining gasket for mechanical joints of pipes | William W. Holmes, IV | 2006-09-19 |
| 7104573 | Energized restraining gasket for mechanical joints of pipes | — | 2006-09-12 |
| 7093863 | Restraining gasket for mechanical joints of pipes | William W. Holmes, IV | 2006-08-22 |
| D515673 | Pipe gland ear | William H. Owen | 2006-02-21 |
| D514669 | Pipe gland ear | William H. Owen | 2006-02-07 |
| D513793 | Pipe gland | William H. Owen | 2006-01-24 |
| 6730876 | Highly ductile reduced imperfection weld for ductile iron and method for producing same | David J. Farr, James E. Wren | 2004-05-04 |
| 6688652 | Locking device and method for securing telescoped pipe | William W. Holmes, IV | 2004-02-10 |
| 6502867 | Flanged pipe fitting | William W. Holmes, IV | 2003-01-07 |