Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5441310 | Cement head quick connector | Paul A. Crawford | 1995-08-15 |
| 4867483 | Pipe connector device | Robert Witt, Tep Ungchusri, Roy Bates | 1989-09-19 |
| 4568062 | Fire-resistant gate valve | Alfred P. Regitz, Charles E. Jennings, Kendall E. Keene, Bashir M. Koleilat, John N. McIntyre +2 more | 1986-02-04 |