Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11813498 | Torque pull-up bar assembly | — | 2023-11-14 |
| 11780741 | Modular underdrain systems | Rand S Faaborg, Clifford Dale Barber, Darrell Wayne Christianson, Scott Allen Pallwitz, Chad Carpenter | 2023-10-10 |
| 10941050 | Modular underdrain systems | Rand S Faaborg, Clifford Dale Barber, Darrell Wayne Christianson, Scott Allen Pallwitz, Chad Carpenter | 2021-03-09 |