SNECMA
1,661Patents
1,557Active
1,661Granted
64Portfolio score
Filing activity: Aug 13, 1981 → Jun 18, 2019 · 604 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8600611B2 | System and method for measuring fatigue for mechanical components of an aircraft and aircraft maintenance method | Physics | 87 | Active |
| US7942003B2 | Dual-injector fuel injector system | Mechanical Engineering; Lighting; Heating | 87 | Active |
| US4608480A | Process and apparatus for laser drilling | Performing Operations; Transporting | 85 | Expired |
| US7500644B2 | Device for maintaining and positioning harnesses on a turbo-jet engine | Mechanical Engineering; Lighting; Heating | 74 | Expired |
| US4679981A | Turbine ring for a gas turbine engine | Mechanical Engineering; Lighting; Heating | 73 | Expired |
| US7552591B2 | Twin spool turbine engine with power take-off means on the low-pressure and high-pressure rotors, and power take-off module for the turbine engine | Emerging Cross-Sectional Technologies | 71 | Active |
| US7406830B2 | Compression-evaporation system for liquefied gas | Emerging Cross-Sectional Technologies | 59 | Active |
| US4452038A | System for attaching two rotating parts made of materials having different expansion coefficients | Emerging Cross-Sectional Technologies | 58 | Expired |
| US7249462B2 | Mounting a turbine nozzle on a combustion chamber having CMC walls in a gas turbine | Emerging Cross-Sectional Technologies | 58 | Expired |
| US4457668A | Gas turbine stages of turbojets with devices for the air cooling of the turbine wheel disc | Emerging Cross-Sectional Technologies | 57 | Expired |
| US7785075B2 | Optimized aerodynamic profile for a turbine blade | Emerging Cross-Sectional Technologies | 50 | Active |
| US7707832B2 | Device for injecting a mixture of air and fuel, and a combustion chamber and turbomachine provided with such a device | Emerging Cross-Sectional Technologies | 48 | Active |
| US7234306B2 | Gas turbine combustion chamber made of CMC and supported in a metal casing by CMC linking members | Mechanical Engineering; Lighting; Heating | 44 | Expired |
| US4522557A | Cooling device for movable turbine blade collars | Mechanical Engineering; Lighting; Heating | 44 | Expired |
| US4478554A | Fan blade axial and radial retention device | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US7673461B2 | Structural turbine engine casing | Emerging Cross-Sectional Technologies | 38 | Active |
| US8162593B2 | Inter-turbine casing with cooling circuit, and turbofan comprising it | Mechanical Engineering; Lighting; Heating | 36 | Active |
| US7891165B2 | Exhaust casing hub comprising stress-distributing ribs | Mechanical Engineering; Lighting; Heating | 35 | Active |
| US7952244B2 | Turbojet having an electricity generator arranged in its fan | Mechanical Engineering; Lighting; Heating | 35 | Active |
| US4516910A | Retractable damping device for blades of a turbojet | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4470756A | Device for axial securing of blade feet of a gas turbine disk | Mechanical Engineering; Lighting; Heating | 32 | Expired |
| US9309008B2 | Aircraft engine module handling assembly | Performing Operations; Transporting | 32 | Active |
| US7909573B2 | Casing cover in a jet engine | Mechanical Engineering; Lighting; Heating | 31 | Active |
| US4494909A | Damping device for turbojet engine fan blades | Emerging Cross-Sectional Technologies | 31 | Expired |
| US7237388B2 | Assembly comprising a gas turbine combustion chamber integrated with a high pressure turbine nozzle | Emerging Cross-Sectional Technologies | 31 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.