Societe Nationale d'Etude et de Construction de Moteurs d'Aviation - S.N.E.C.M.A
765Patents
0Active
765Granted
45Portfolio score
Filing activity: Aug 8, 1968 → Dec 27, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4550617A | Multi axis force and moments transducer | Physics | 111 | Expired |
| US4606039A | Spread spectrum coding method and apparatus | Electricity | 100 | Expired |
| US5477731A | Method and apparatus for detecting a fouled fluid filter | Performing Operations; Transporting | 95 | Expired |
| US5157915A | Pod for a turbofan aero engine of the forward contrafan type having a very high bypass ratio | Performing Operations; Transporting | 87 | Expired |
| US3975901A | Device for regulating turbine blade tip clearance | Mechanical Engineering; Lighting; Heating | 80 | Expired |
| US6282881A | Cooling system for a turbomachine speed reducer | Emerging Cross-Sectional Technologies | 71 | Expired |
| US4901522A | Turbojet engine combustion chamber with a double wall converging zone | Emerging Cross-Sectional Technologies | 68 | Expired |
| US4596116A | Sealing ring for a turbine rotor of a turbo machine and turbo machine installations provided with such rings | Emerging Cross-Sectional Technologies | 68 | Expired |
| US5012640A | Combined air-hydrogen turbo-rocket power plant | Mechanical Engineering; Lighting; Heating | 67 | Expired |
| US6017189A | Cooling system for turbine blade platforms | Emerging Cross-Sectional Technologies | 67 | Expired |
| US3937011A | Fuel injector for atomizing and vaporizing fuel | Emerging Cross-Sectional Technologies | 67 | Expired |
| US4759687A | Turbine ring incorporating elements of a ceramic composition divided into sectors | Mechanical Engineering; Lighting; Heating | 66 | Expired |
| US5297386A | Cooling system for a gas turbine engine compressor | Emerging Cross-Sectional Technologies | 65 | Expired |
| US6585842B1 | Method and machine for producing multiaxial fibrous webs | Emerging Cross-Sectional Technologies | 64 | Expired |
| US4037809A | Device for mounting a turboreactor on an aeroplane | Performing Operations; Transporting | 61 | Expired |
| US5308228A | Gas turbine blade comprising layers of composite material | Emerging Cross-Sectional Technologies | 60 | Expired |
| US5074109A | Low pressure turbine rotor suspension in a twin hub turbo-engine | Mechanical Engineering; Lighting; Heating | 59 | Expired |
| US4199295A | Method and device for reducing the noise of turbo-machines | Mechanical Engineering; Lighting; Heating | 59 | Expired |
| US4614296A | Diffusion brazing process for pieces of superalloys | Performing Operations; Transporting | 59 | Expired |
| US5993156A | Turbine vane cooling system | Mechanical Engineering; Lighting; Heating | 58 | Expired |
| US6082967A | Constant-speed twin spool turboprop unit | Mechanical Engineering; Lighting; Heating | 58 | Expired |
| US5592819A | Pre-mixing injection system for a turbojet engine | Emerging Cross-Sectional Technologies | 57 | Expired |
| US4805398A | Turbo-machine with device for automatically controlling the rate of flow of turbine ventilation air | Emerging Cross-Sectional Technologies | 56 | Expired |
| US3934409A | Gas turbine combustion chambers | Mechanical Engineering; Lighting; Heating | 56 | Expired |
| US5182430A | Powder supply device for the formation of coatings by laser beam treatment | Chemistry; Metallurgy | 56 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.