Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4568062 | Fire-resistant gate valve | Stephen P. Barrett, Charles E. Jennings, Kendall E. Keene, Bashir M. Koleilat, John N. McIntyre +2 more | 1986-02-04 |
| 4510960 | Valve stem-to-bonnet backseat | Charles E. Jennings, Claud C. Barrington, Lien-Yan Chen, Bob C. Hopkins, John N. McIntyre | 1985-04-16 |