Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9631759 | Expansion joint for pipelines | Randy L. Chase, Douglas R. Dole, Lawrence W. Thau, Jr., Scott D. Madara, Ryan D. Kuehner | 2017-04-25 |
| 9267628 | Method of making a tamper resistant coupling | Ahmad Sith, Douglas R. Dole | 2016-02-23 |