Lawrence Butler
26Patents
17h-index
25Co-inventors
81Inventor score
Filing activity: Sep 9, 1986 → Feb 1, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5010729A | Geared counterrotating turbine/fan propulsion system | Emerging Cross-Sectional Technologies | 218 | Expired |
| US4916894A | High bypass turbofan engine having a partially geared fan drive turbine | Emerging Cross-Sectional Technologies | 117 | Expired |
| US5655360A | Thrust reverser with variable nozzle | Emerging Cross-Sectional Technologies | 98 | Expired |
| US7195446B2 | Counter-rotating turbine engine and method of assembling same | Mechanical Engineering; Lighting; Heating | 60 | Expired |
| US4936748A | Auxiliary power source in an unducted fan gas turbine engine | Emerging Cross-Sectional Technologies | 55 | Expired |
| US6990797B2 | Methods and apparatus for operating gas turbine engines | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5263898A | Propeller blade retention system | Performing Operations; Transporting | 40 | Expired |
| US4752185A | Non-contacting flowpath seal | Mechanical Engineering; Lighting; Heating | 38 | Expired |
| US6442930B1 | Combined cycle pulse detonation turbine engine | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US4738591A | Blade pitch varying mechanism | Emerging Cross-Sectional Technologies | 36 | Expired |
| US4738590A | Blade pitch varying mechanism | Emerging Cross-Sectional Technologies | 30 | Expired |
| US6666018B2 | Combined cycle pulse detonation turbine engine | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US6629674B1 | Method and apparatus for modulating airfoil lift | Emerging Cross-Sectional Technologies | 29 | Expired |
| US6550235B2 | Combined cycle pulse detonation turbine engine operating method | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US4875655A | Vibration isolating engine mount | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5028001A | Method of vibration isolating an aircraft engine | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4951461A | Power turbine support arrangement | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6931858B2 | Rotating pulse detonation system for a gas turbine engine | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US6928804B2 | Pulse detonation system for a gas turbine engine | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US6904750B2 | Integral pulse detonation system for a gas turbine engine | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US8082728B2 | System and method of continuous detonation in a gas turbine engine | Mechanical Engineering; Lighting; Heating | 9 | Active |
| US6889505B2 | Pulse detonation system for a gas turbine engine | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US6868665B2 | Methods and apparatus for operating gas turbine engines | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US7328570B2 | Pulse detonation system for a gas turbine engine having multiple spools | Emerging Cross-Sectional Technologies | 6 | Active |
| US7124573B2 | Rotary pulse detonation system with aerodynamic detonation passages for use in a gas turbine engine | Emerging Cross-Sectional Technologies | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.