Marusan Corporation
3Patents
0Active
3Granted
24Portfolio score
Filing activity: May 25, 1988 → Dec 26, 1996
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6139024A | Cylinder head gasket | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US4881621A | Spiral spring power source for toy | Emerging Cross-Sectional Technologies | 8 | Expired |
| USD309166S | Toy motor car | General | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.