Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4401763 | Analytical method for the determination of nitrogen, carbon, hydrogen and sulfur or chlorine and apparatus therefor | — | 1983-08-30 |
| 4332591 | Analytical method and apparatus for the determination of total nitrogen contents in aqueous systems | Naobumi Oi, Yoshiaki Yasumasa | 1982-06-01 |
| 4285699 | Analytical method and apparatus for the determination of total nitrogen contents in samples | — | 1981-08-25 |