NNC Limited
7Patents
0Active
7Granted
27Portfolio score
Filing activity: Aug 3, 1989 → Jan 17, 1992
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5119023A | Method and apparatus for eddy curent non-destructive examination of cylindrical metallic members | Physics | 13 | Expired |
| US5100295A | Impeller pumps | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5004354A | Heat transfer measurement | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5196158A | Electrical safety system | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5124114A | Movement detection system | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5101893A | Heat exchangers | Emerging Cross-Sectional Technologies | 0 | Expired |
| US5155894A | Method of repairing by lining heat exchanger tubes | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.