Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4987083 | Photometric analyzer and controller for beverages | Glenn D. Apple, Stewart W. Sennet | 1991-01-22 |
| 4380586 | Method and apparatus for photometrically monitoring low level concentration of hydrogen sulfide in alkanol amine | — | 1983-04-19 |
| 4311485 | Method and apparatus for photometrically monitoring the concentrations of both chlorine and chlorine dioxide | James W. Williams | 1982-01-19 |