Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9393739 | Rack type pipe feeder for a pipe fusion machine | James R. Perrault, David W. Porter, William Barton Draeger, Bobby Lee Murray, Timothy M. Thoman +1 more | 2016-07-19 |
| 8690517 | Rack type pipe feeder for a pipe fusion machine | James R. Perrault, David W. Porter, William Barton Draeger, Bobby Lee Murray, Timothy M. Thoman +1 more | 2014-04-08 |