Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4608127 | Dibenzofuran distillation and crystallization process | Kiyoshi Sakuma, Tadao Tomioka, Kihachiro Ohta, Masakazu Takeuchi | 1986-08-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4608127 | Dibenzofuran distillation and crystallization process | Kiyoshi Sakuma, Tadao Tomioka, Kihachiro Ohta, Masakazu Takeuchi | 1986-08-26 |