Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7546847 | Locking plug for closing the sidewall of a pipe | Eric N. Freeman, Mark Morgan, Tony R. Garrison | 2009-06-16 |
| 7311114 | Cross-line plugging system | Eric N. Freeman, Mark Morgan, Tony R. Garrison | 2007-12-25 |
| 7281543 | Apparatus, systems and methods for plugging a high temperature pipe | Charles D. Calkins, Eric N. Freeman, Tony R. Garrison, Gary Goins, Gregory L. Puckett +3 more | 2007-10-16 |