Patent assignee · FR · COMPANY

SAFRAN HELICOPTER ENGINES

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192Patents
191Active
192Granted
60Portfolio score

Filing activity: Jun 14, 2011 → May 6, 2024

Most-cited patents

PatentTitleAreaCited byStatus
US10766629B2 Architecture of a multiple-engine helicopter propulsion system, and corresponding helicopter Emerging Cross-Sectional Technologies 32 Active
US11161603B2 Architecture for a propulsion system of a helicopter including a hybrid turboshaft engine and a system for reactivating said hybrid turboshaft engine Emerging Cross-Sectional Technologies 13 Active
US10337409B2 Method for assisting a turboshaft engine in standby of a multiple-engine helicopter, and architecture of a propulsion system of a helicopter comprising at least one turboshaft engine that can be in standby Emerging Cross-Sectional Technologies 11 Active
US10059460B2 Method and architecture for the optimized transfer of power between an auxiliary power motor and the main engines of a helicopter Emerging Cross-Sectional Technologies 10 Active
US9828917B2 Rapid assistance device for a free turbine engine of an aircraft Emerging Cross-Sectional Technologies 9 Active
US10662875B2 Propulsion unit with selective coupling means Emerging Cross-Sectional Technologies 7 Active
US10208620B2 Overspeed protection device of an aircraft engine Mechanical Engineering; Lighting; Heating 5 Active
US10190438B2 Turbine engine and control method Emerging Cross-Sectional Technologies 4 Active
US11459960B2 Method for checking the maximum available power of a turbine engine of an aircraft equipped with two turbine engines Mechanical Engineering; Lighting; Heating 4 Active
US10023303B2 Field of electric actuating systems aboard aircrafts Physics 4 Active
US10138734B2 Turbine ring for a turbomachine Mechanical Engineering; Lighting; Heating 4 Active
US10578031B2 Method for detecting a failure of a first turbine engine of a twin-engine helicopter and for operating the second turbine engine, and corresponding device Emerging Cross-Sectional Technologies 4 Active
US9951694B2 System and method for emergency starting of an aircraft turbomachine Emerging Cross-Sectional Technologies 3 Active
US11047312B2 Turboprop comprising an incorporated electricity generator Emerging Cross-Sectional Technologies 3 Active
US10527287B2 Injectors for gas turbine combustion chamber Mechanical Engineering; Lighting; Heating 2 Active
US10415482B2 Turboshaft engine comprising a controlled mechanical coupling device, helicopter equipped with such a turboshaft engine, and method for optimising the zero-power super-idle speed of such a helicopter Emerging Cross-Sectional Technologies 2 Active
US11316394B2 Electrical machine of a turbomachine comprising a rotor cooled by a cooling channel Electricity 2 Active
US11391203B2 Asymmetric propulsion system with heat recovery Emerging Cross-Sectional Technologies 2 Active
US10336442B2 Non-lubricated architecture for a turboshaft engine Emerging Cross-Sectional Technologies 2 Active
US11085376B2 Integration of a phase-change material for limiting the temperature of fuel from an electronic module Emerging Cross-Sectional Technologies 2 Active
US10551064B2 Annular wall of a combustion chamber with improved cooling at the level of primary and/or dilution holes Mechanical Engineering; Lighting; Heating 2 Active
US10683804B2 System for recovering exhaust gas energy Emerging Cross-Sectional Technologies 2 Active
US10301035B2 Method and configuration for an auxiliary power engine to deliver propulsive and/or non-propulsive energy in a helicopter architecture Emerging Cross-Sectional Technologies 2 Active
US10087838B2 Device and method for temporarily increasing power Mechanical Engineering; Lighting; Heating 2 Active
US10151246B2 Assistance device for a free-turbine engine of an aircraft having at least two free-turbine engines Emerging Cross-Sectional Technologies 2 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.