Inventor
LEGRAND III LOUIS LEROI
US54 patents
⚠️ This page may combine multiple inventors who share the name “LEGRAND III LOUIS LEROI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AMAZON TECH INC
48 patentsUS9764829B1Sep 19, 2017
Multirotor aircraft with enhanced yaw control
AMAZON TECH INC101 citations97
US9650136B1May 16, 2017
Unmanned aerial vehicle payload delivery
AMAZON TECH INC167 citations97
US9354709B1May 31, 2016
Tilt gesture detection
AMAZON TECH INC135 citations97
US9334049B1May 10, 2016
Single blade rotor system for use in a vertical takeoff and landing (VTOL) aircraft
AMAZON TECH INC45 citations97
US10071804B1Sep 11, 2018
Delivery drop rate modulation
AMAZON TECH INC120 citations96
US9969494B1May 15, 2018
Delivery drop platforms, tethers, and stabilization
AMAZON TECH INC113 citations96
US9613539B1Apr 4, 2017
Damage avoidance system for unmanned aerial vehicle
AMAZON TECH INC106 citations96
US9688404B1Jun 27, 2017
Stabilized airborne drop delivery
AMAZON TECH INC160 citations95
US10556709B1Feb 11, 2020
Energy-efficient launch system for aerial vehicles
AMAZON TECH INC21 citations94
US10518880B2Dec 31, 2019
Six degree of freedom aerial vehicle with a ring wing
AMAZON TECH INC18 citations94
US10222279B1Mar 5, 2019
Force measurement device
AMAZON TECH INC32 citations94
US10101443B1Oct 16, 2018
Airframe-embedded ultrasonic transducers
AMAZON TECH INC29 citations94
US9868524B2Jan 16, 2018
Unmanned aerial vehicle configuration for extended flight
AMAZON TECH INC23 citations94
US9598169B1Mar 21, 2017
Single blade rotor system for use in a vertical takeoff and landing (VTOL) aircraft
AMAZON TECH INC35 citations93
US9586683B1Mar 7, 2017
Transitioning an unmanned aerial vehicle to horizontal flight
AMAZON TECH INC52 citations92
US11649053B2May 16, 2023
Hexagonal ring wing aerial vehicle
AMAZON TECH INC4 citations86
USD942921SFeb 8, 2022
Aerial vehicle
AMAZON TECH INC13 citations86
USD916623SApr 20, 2021
Aerial vehicle
AMAZON TECH INC9 citations86
US11407511B1Aug 9, 2022
Delivery drop platforms, tethers, and stabilization
AMAZON TECH INC7 citations84
US10165256B2Dec 25, 2018
Aerial vehicle optical sensor configuration
AMAZON TECH INC7 citations84
US10160541B1Dec 25, 2018
Circumferentially-driven propulsion mechanism
AMAZON TECH INC8 citations84
US10044196B1Aug 7, 2018
Utility distribution infrastructure
AMAZON TECH INC7 citations84
USD917340SApr 27, 2021
Aerial vehicle
AMAZON TECH INC11 citations83
US10800521B1Oct 13, 2020
Configurable aerial vehicles
AMAZON TECH INC10 citations83
US10377483B2Aug 13, 2019
Six degree of freedom aerial vehicle with offset propulsion mechanisms
AMAZON TECH INC9 citations83
US9305226B1Apr 5, 2016
Semantic boosting rules for improving text recognition
AMAZON TECH INC14 citations83
USD1086970SAug 5, 2025
Aerial vehicle
AMAZON TECH INC2 citations75
US11091263B2Aug 17, 2021
Ring wing aerial vehicle
AMAZON TECH INC2 citations73
US11066163B2Jul 20, 2021
Distributed and reconfigurable aerial vehicle configuration
AMAZON TECH INC5 citations73
US10901077B1Jan 26, 2021
Airframe-embedded ultrasonic transducers
AMAZON TECH INC2 citations73
US10778960B2Sep 15, 2020
Aerial vehicle sensor positioning
AMAZON TECH INC3 citations73
US10671094B2Jun 2, 2020
Virtual safety shrouds for aerial vehicles
AMAZON TECH INC4 citations73
USD1073532SMay 6, 2025
Aerial vehicle
AMAZON TECH INC3 citations72
US11565808B2Jan 31, 2023
Aerial vehicle with failure recovery
AMAZON TECH INC2 citations72
US11111009B1Sep 7, 2021
Operating multirotor aircraft with enhanced yaw control
AMAZON TECH INC2 citations72
US10858103B1Dec 8, 2020
Delivery drop rate modulation
AMAZON TECH INC2 citations72
US10836485B2Nov 17, 2020
Unmanned aerial vehicle configuration for extended flight and heat dissipation
AMAZON TECH INC4 citations72
US10739139B1Aug 11, 2020
Calculating moment of inertia tensors of aerial vehicles
AMAZON TECH INC5 citations72
US10618649B2Apr 14, 2020
Six degree of freedom aerial vehicle
AMAZON TECH INC6 citations72
US10059440B2Aug 28, 2018
Propeller alignment devices
AMAZON TECH INC3 citations72
US9878784B2Jan 30, 2018
Propeller alignment devices
AMAZON TECH INC2 citations72
US10096255B1Oct 9, 2018
Damage avoidance system for unmanned aerial vehicle using stored energy from descent
AMAZON TECH INC4 citations71
US10450065B2Oct 22, 2019
Stabilized airborne drop delivery
AMAZON TECH INC5 citations70
US12304627B2May 20, 2025
Hexagonal ring wing aerial vehicle
AMAZON TECH INC0 citations63
US10640204B2May 5, 2020
Unmanned aerial vehicle with a tri-wing configuration
AMAZON TECH INC1 citations63
US12510907B2Dec 30, 2025
Aerial vehicle with independent navigation in six degrees of freedom
AMAZON TECH INC0 citations62
US12032391B2Jul 9, 2024
Virtual safety shrouds for aerial vehicles
AMAZON TECH INC0 citations62
US11884393B2Jan 30, 2024
Aerial vehicle with failure recovery
AMAZON TECH INC0 citations62
RAWLES LLC
2 patentsShowing the top 50 of 54 patents by PatentIndex Score.