Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11052613 | Top-loading straddle-mounted pipe fusion machine | Jason A. Lawrence, James R. Perrault, David W. Porter, Timothy M. Thoman | 2021-07-06 |
| 10369751 | Top-loading straddle-mounted pipe fusion machine | Jason A. Lawrence, James R. Perrault, David W. Porter, Timothy M. Thoman | 2019-08-06 |
| 9393739 | Rack type pipe feeder for a pipe fusion machine | James R. Perrault, David W. Porter, Brandon William Jackman, William Barton Draeger, Timothy M. Thoman +1 more | 2016-07-19 |
| 9242410 | Top-loading straddle-mounted pipe fusion machine | Jason A. Lawrence, James R. Perrault, David W. Porter, Timothy M. Thoman | 2016-01-26 |
| 8690517 | Rack type pipe feeder for a pipe fusion machine | James R. Perrault, David W. Porter, Brandon William Jackman, William Barton Draeger, Timothy M. Thoman +1 more | 2014-04-08 |
| 8464410 | Rack type pipe feeder for a pipe fusion machine | Timothy A. Lyon, Thomas D. Cravens | 2013-06-18 |