Nikken Corporation
9Patents
0Active
9Granted
29Portfolio score
Filing activity: Oct 4, 1988 → Sep 28, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6352035B1 | Driving mechanism of a track traveling vehicle | Performing Operations; Transporting | 54 | Expired |
| US5304111A | Therapeutic magnetic sheet with repeated curved magnetic areas | Human Necessities | 37 | Expired |
| US5598641A | Raw sewage disposal apparatus | Fixed Constructions | 12 | Expired |
| US5549437A | Fork lift truck loading mechanism | Performing Operations; Transporting | 11 | Expired |
| US5575082A | Raw sewage disposal apparatus | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5638616A | Oil supply mechanism in a deep excavator | Fixed Constructions | 8 | Expired |
| US5564133A | Raw sewage disposal apparatus | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US5566401A | Cleaning mechanism of a stool | Fixed Constructions | 6 | Expired |
| US4945295A | Operation confirmatory circuit for linear actuator | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.