Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4219441 | Aqueous alkali or alkaline treat and heat regeneration of NH.sub.4.sup.+ a d | Yasuo Koseki, Masayoshi Kubota, Shoji Kubota, Sankichi Takahashi | 1980-08-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4219441 | Aqueous alkali or alkaline treat and heat regeneration of NH.sub.4.sup.+ a d | Yasuo Koseki, Masayoshi Kubota, Shoji Kubota, Sankichi Takahashi | 1980-08-26 |