Issued Patents 2019
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10450708 | Trench filling machine | Cornelius Vanderford | 2019-10-22 |
| 10422107 | Trenching system with hydraulically adjustable hub | Michael C. Ruhl, David R. Bazzell, Vernon T. Stellman, Steven P. Seabolt, Andrew A. Schuermann | 2019-09-24 |
| 10399017 | Drilling fluid reclaimer | Brant Douglas Kukuk | 2019-09-03 |
| RE47572 | Sprocket with double mud relief | Brant Douglas Kukuk | 2019-08-20 |
| 10337168 | Trenching assembly | — | 2019-07-02 |
| 10309080 | Trench filling machine | — | 2019-06-04 |
| 10221602 | Vacuum system | — | 2019-03-05 |
| 10207863 | Apparatus for sealing a vacuum tank door | David A. Bural | 2019-02-19 |