Frederick J. Perry
11Patents
9h-index
8Co-inventors
65Inventor score
Filing activity: May 18, 1976 → Apr 23, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5992793A | Aerofoil | Emerging Cross-Sectional Technologies | 63 | Expired |
| US5492448A | Rotary blades | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4975022A | Helicopter rotor blades | Performing Operations; Transporting | 19 | Expired |
| US4668169A | Helicopter rotor blade | Performing Operations; Transporting | 15 | Expired |
| US4077741A | Helicopter rotor blades | Performing Operations; Transporting | 12 | Expired |
| US4427344A | Helicopter rotor blade | Performing Operations; Transporting | 12 | Expired |
| US5199851A | Helicopter rotor blades | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5927948A | Propeller | Performing Operations; Transporting | 10 | Expired |
| US5246344A | Helicopter rotor blade with improved performance characteristics | Performing Operations; Transporting | 9 | Expired |
| US5100294A | Helicopter rotors | Performing Operations; Transporting | 7 | Expired |
| US5205715A | Helicopter rotor blades | Emerging Cross-Sectional Technologies | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.