Toyota Jidosha Kabushiki Kaisha and Cataler Industrial Co., Ltd.
2Patents
0Active
2Granted
24Portfolio score
Filing activity: Mar 15, 1989 → Nov 30, 1998
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4957896A | Catalyst for purification of exhaust gases | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6159897A | Catalyst for purifying exhaust gases | Emerging Cross-Sectional Technologies | 23 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.