Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8544563 | Oil well perforators | Nathan G. Clark | 2013-10-01 |
| 8220394 | Oil well perforators | Leslie Raymond Bates | 2012-07-17 |
| 7261036 | Shaped charge liner | Kenneth Graham Cowan | 2007-08-28 |
| 6877562 | Oil well perforator | — | 2005-04-12 |
| 5331895 | Shaped charges and their manufacture | Peter N. Jones, Roger Warren | 1994-07-26 |