Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6923423 | Small bore gate valve | Taylor L. Jones, Archie L. Smith, David Cain, Gregory L. Glidden, Christopher D. Bartlett +2 more | 2005-08-02 |
| 6626239 | Internal gate valve for flow completion systems | Christopher E. Cunningham, Christopher D. Bartlett, Thomas L. Hergarden, Michael E. Wilson, Jr. | 2003-09-30 |
| 6497277 | Internal gate valve for flow completion systems | Christopher E. Cunningham, Christopher D. Bartlett, Thomas L. Hergarden, Michael E. Wilson, Jr. | 2002-12-24 |