Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804849 | Method and apparatus for determining concentrations of chlorophyll and the rate of primary production in water | Dale A. Kiefer | 1989-02-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804849 | Method and apparatus for determining concentrations of chlorophyll and the rate of primary production in water | Dale A. Kiefer | 1989-02-14 |