Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4726742 | Guide structure for submersible pump system | Nyle D. LaGrange | 1988-02-23 |
| 4687023 | Ball check valve | Darryl M. Nielsen, Dorothy D. McDaniel | 1987-08-18 |
| 4679991 | Submersible pump and wastewater basin apparatus | Nyle D. LaGrange, Darryl M. Nielsen | 1987-07-14 |
| 4680437 | Adjustable float assembly for pumps | Nyle D. La Grange, Darryl M. Nielsen | 1987-07-14 |