Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6458740 | Method for preparing heteropolyacid catalyst and method for producing methacrylic acid | Hiroto Kasuga, Kaori Nakatani | 2002-10-01 |
| 6410786 | Process for producing methacrylic acid | Hideo Onodera, Naomasa Kimura | 2002-06-25 |