Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6974120 | Solenoid fuel drain valve | Steven P. Wilson, Phillip R. Core, Svetlana Ferrari | 2005-12-13 |
| 6382591 | Plug valve assembly | David Bowers, Royce Chaffin, Donnie Ray Hammock, Gerald Patrick McDermott | 2002-05-07 |
| 6029949 | High performance butterfly valve | William John Mabery, Harold Gentry, Gerald Patrick McDermott | 2000-02-29 |
| 5746417 | Adjustable ball valve | David Bowers, Royce Chaffin, Donnie Ray Hammock, Gerald Patrick McDermott | 1998-05-05 |
| 5081512 | Electronic devices | Michael J. Kelly, Micahel Pepper, Charles G. Smith, David A. Wharam | 1992-01-14 |
| 4373543 | Fire resistant seat for flow control valve | Kenneth Shepherd | 1983-02-15 |