Bertea Corporation
10Patents
0Active
10Granted
32Portfolio score
Filing activity: Nov 6, 1974 → Mar 6, 1980
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4091841A | Pressure plug and method | Emerging Cross-Sectional Technologies | 51 | Expired |
| US4333387A | Anti-jam hydraulic servo valve | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4116504A | Spherical bearing and method of making the same | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US3960361A | Solenoid valve | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4333009A | Optical position transducer | Electricity | 10 | Expired |
| US4132378A | Control system for aircraft | Physics | 9 | Expired |
| US4185542A | Actuator with frangible gland construction | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4132126A | Ratio select mechanism | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4167135A | Anti-jam mechanism for actuation pistons | Emerging Cross-Sectional Technologies | 3 | Expired |
| US3972188A | Control system with actuator powered by dual sources | Mechanical Engineering; Lighting; Heating | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.