Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6407296 | Process for producing difluoromethane | Takashi Shibanuma, Takehide Tsuda | 2002-06-18 |
| 6375808 | Process for producing difluoromethane | Takehide Tsuda, Takashi Shibanuma | 2002-04-23 |