Sterling Hydraulics, Inc.
9Patents
0Active
9Granted
27Portfolio score
Filing activity: Aug 21, 1973 → Mar 26, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5072752A | Bidirectional cartridge valve | Emerging Cross-Sectional Technologies | 32 | Expired |
| US6161585A | High flow proportional pressure reducing valve | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5117869A | Solenoid valve | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5842679A | Adjustable stroke solenoid operated cartridge valve | Electricity | 24 | Expired |
| US5205531A | Solenoid operated cartridge valve | Electricity | 23 | Expired |
| US5156184A | Solenoid operated transmission cartridge valve | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5299600A | Analog proportional pressure control three-way valve | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5002253A | Solenoid valve | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US3939869A | Hydraulic control valve for remote receiver | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.