CDK Corporation
8Patents
2Active
8Granted
33Portfolio score
Filing activity: Sep 26, 1986 → Sep 28, 2012
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6508453B2 | High-temperature gas control valve | Mechanical Engineering; Lighting; Heating | 28 | Expired |
| US7628376B2 | Diaphragm valve | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5473971A | Rodless cylinder | Performing Operations; Transporting | 10 | Expired |
| US8581220B2 | Target supply apparatus, control system, control apparatus and control circuit thereof | Electricity | 5 | Active |
| US4800254A | Commodity information transmission system for on-line transaction network | Physics | 4 | Expired |
| US6202681A | Vacuum pressure control system | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7084549B2 | Driver of piezoelectric actuator | Electricity | 1 | Expired |
| US9010736B2 | Liquid control apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.