Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7189880 | Process for producing 2,4′-dihydroxydiphenylsulfone | Gou Yoshino, Yuichi Tomoda, Kazuaki Igarashi, Takeo Hasegawa | 2007-03-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7189880 | Process for producing 2,4′-dihydroxydiphenylsulfone | Gou Yoshino, Yuichi Tomoda, Kazuaki Igarashi, Takeo Hasegawa | 2007-03-13 |