Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11058973 | Underdrain assembly | Michael Ekholm, Richard C. Maxson, Mark E. Watson | 2021-07-13 |
| 10151099 | Underdrain assembly | Michael Ekholm, Richard C. Maxson, Mark E. Watson | 2018-12-11 |
| 8491787 | Leveling hold-down mechanism for lateral screens | Timothy Charles Wolf, Garth H. Saul, Michael Ekholm, Ehrich Shaw, Frederick Granet +1 more | 2013-07-23 |