Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4424277 | Method for the determination of nitrate ions | — | 1984-01-03 |
| 4395494 | Reagent and method for the determination of hydrazine | Roland Bitsch | 1983-07-26 |
| 4266877 | Photometer with interchangeable calibration cards | — | 1981-05-12 |