David William Crall
47Patents
19h-index
69Co-inventors
84Inventor score
Filing activity: Jun 6, 1995 → Aug 4, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5809772A | Turbofan engine with a core driven supercharged bypass duct | Mechanical Engineering; Lighting; Heating | 125 | Expired |
| US5725354A | Forward swept fan blade | Emerging Cross-Sectional Technologies | 72 | Expired |
| US5725355A | Adhesive bonded fan blade | Emerging Cross-Sectional Technologies | 67 | Expired |
| US6454535B1 | Blisk | Mechanical Engineering; Lighting; Heating | 66 | Expired |
| US6478545B2 | Fluted blisk | Emerging Cross-Sectional Technologies | 60 | Expired |
| US10815886B2 | High tip speed gas turbine engine | Emerging Cross-Sectional Technologies | 48 | Active |
| US5988980A | Blade assembly with splitter shroud | Emerging Cross-Sectional Technologies | 42 | Expired |
| US7246990B2 | Composite fan containment case for turbine engines | Emerging Cross-Sectional Technologies | 41 | Expired |
| US5562419A | Shrouded fan blisk | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US7497662B2 | Methods and systems for assembling rotatable machines | Emerging Cross-Sectional Technologies | 33 | Active |
| US7780410B2 | Method and apparatus for gas turbine engines | Emerging Cross-Sectional Technologies | 33 | Active |
| US6439838B1 | Periodic stator airfoils | Emerging Cross-Sectional Technologies | 32 | Expired |
| US6666017B2 | Counterrotatable booster compressor assembly for a gas turbine engine | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US10711797B2 | Inlet pre-swirl gas turbine engine | Emerging Cross-Sectional Technologies | 29 | Active |
| US10724435B2 | Inlet pre-swirl gas turbine engine | Emerging Cross-Sectional Technologies | 28 | Active |
| US7575417B2 | Reinforced fan blade | Emerging Cross-Sectional Technologies | 25 | Active |
| US6471484B1 | Methods and apparatus for damping rotor assembly vibrations | Emerging Cross-Sectional Technologies | 24 | Expired |
| US9260974B2 | System and method for active clearance control | Mechanical Engineering; Lighting; Heating | 21 | Active |
| US11187156B2 | Thermal management system | Emerging Cross-Sectional Technologies | 21 | Active |
| US5971706A | Inter-rotor bearing assembly | Emerging Cross-Sectional Technologies | 19 | Expired |
| US7972109B2 | Methods and apparatus for fabricating a fan assembly for use with turbine engines | Emerging Cross-Sectional Technologies | 18 | Active |
| US7018168B2 | Method and apparatus for fabricating gas turbine engines | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US8123463B2 | Method and system for manufacturing a blade | Emerging Cross-Sectional Technologies | 11 | Active |
| US10374477B2 | Electric machine with separable magnet carrier | Emerging Cross-Sectional Technologies | 10 | Active |
| US6568909B2 | Methods and apparatus for improving engine operation | Emerging Cross-Sectional Technologies | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.