Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4688999 | Well pump | James M. Doesburg | 1987-08-25 |
| 4669536 | Groundwater monitoring system | James M. Doesburg, Eugene A. Eschbach, Roy Kelley, David A. Myers | 1987-06-02 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4688999 | Well pump | James M. Doesburg | 1987-08-25 |
| 4669536 | Groundwater monitoring system | James M. Doesburg, Eugene A. Eschbach, Roy Kelley, David A. Myers | 1987-06-02 |