Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6479710 | Method of catalyzing a gas phase reaction using an acid-base catalyst composed of vanadium pentoxide hydrate | Nobuji Kishimoto | 2002-11-12 |
| 6452021 | Process for producing pyromellitic anhydride | Tsukasa Takahashi, Yasuhisa Emoto | 2002-09-17 |