NEYRPIC
14Patents
0Active
14Granted
29Portfolio score
Filing activity: Oct 19, 1979 → May 14, 1993
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4276905A | Mechanism including two cut-off devices in series | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5376191A | Amorphous alloy-based metallic finishes having wear and corrosion resistance | Chemistry; Metallurgy | 11 | Expired |
| US4278108A | Control mechanism for two cut-off devices mounted in series | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4358767A | Method of tracking for telecommunications antennae | Physics | 7 | Expired |
| US4749928A | Device for reducing the lag in recovery of a non-linear subsidiary controller | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4641040A | Low-head hydroelectric installation | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4589821A | High-head multistage pump-turbine | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5083494A | Electro-hydraulic actuator with mechanical memory | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4934867A | Sealing device ensuring lateral tightness of a weir gate | Fixed Constructions | 3 | Expired |
| US4422826A | Propeller runner having swivelling blades for turbines | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4764087A | Channel for feeding water to a vertical-axis Kaplan water turbine | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4316487A | Tubular obturator for use with a hollow body | Physics | 1 | Expired |
| US4773820A | Buffer device for the spiral housings of water turbines and like machines | Emerging Cross-Sectional Technologies | 0 | Expired |
| US4295782A | Starting of pumps or turbopumps | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.