Inventor
ULLYOTT RICHARD
CA43 patents
⚠️ This page may combine multiple inventors who share the name “ULLYOTT RICHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PRATT & WHITNEY CANADA
41 patentsUS7854582B2Dec 21, 2010
Operation of an aircraft engine after emergency shutdown
PRATT & WHITNEY CANADA69 citations98
US7926287B2Apr 19, 2011
Method of operating a gas turbine engine
PRATT & WHITNEY CANADA69 citations96
US11186378B2Nov 30, 2021
Hybrid aircraft propulsion power plants
PRATT & WHITNEY CANADA21 citations94
US10221764B2Mar 5, 2019
Variable geometry inlet system
PRATT & WHITNEY CANADA17 citations93
US10094295B2Oct 9, 2018
Gas turbine engine with transmission
PRATT & WHITNEY CANADA31 citations92
US7654087B2Feb 2, 2010
Compact compound engine package
PRATT & WHITNEY CANADA34 citations92
US7412831B2Aug 19, 2008
Integral cooling system for rotary engine
PRATT & WHITNEY CANADA35 citations92
US9752500B2Sep 5, 2017
Gas turbine engine with transmission and method of adjusting rotational speed
PRATT & WHITNEY CANADA36 citations90
US11560233B2Jan 24, 2023
Hybrid aircraft propulsion power plants
PRATT & WHITNEY CANADA8 citations86
US11661887B2May 30, 2023
Variable geometry inlet system
PRATT & WHITNEY CANADA5 citations84
US10710738B2Jul 14, 2020
Auxiliary power unit with intercooler
PRATT & WHITNEY CANADA9 citations84
US10253687B2Apr 9, 2019
Auxiliary power unit with electrically driven compressor
PRATT & WHITNEY CANADA6 citations84
US10240522B2Mar 26, 2019
Auxiliary power unit with combined cooling of generator
PRATT & WHITNEY CANADA10 citations84
US10240521B2Mar 26, 2019
Auxiliary power unit with variable speed ratio
PRATT & WHITNEY CANADA8 citations84
US10094293B2Oct 9, 2018
In flight restart system and method for free turbine engine
PRATT & WHITNEY CANADA6 citations84
US9994332B2Jun 12, 2018
Engine assembly with direct drive of generator
PRATT & WHITNEY CANADA6 citations84
US9828109B2Nov 28, 2017
Apparatus and methods for powering an electrical device associated with an aircraft rotor
PRATT & WHITNEY CANADA7 citations84
US9771165B2Sep 26, 2017
Compound engine assembly with direct drive of generator
PRATT & WHITNEY CANADA12 citations84
US11066993B2Jul 20, 2021
Variable geometry inlet system
PRATT & WHITNEY CANADA6 citations83
US10054050B2Aug 21, 2018
Low noise aeroengine inlet system
PRATT & WHITNEY CANADA12 citations83
US10118695B2Nov 6, 2018
Directional control system and method of providing directional control
PRATT & WHITNEY CANADA15 citations81
US11827368B2Nov 28, 2023
Hybrid aircraft propulsion power plants
PRATT & WHITNEY CANADA2 citations73
US11485503B2Nov 1, 2022
Hybrid aircraft propulsion power plants
PRATT & WHITNEY CANADA1 citations73
US11313273B2Apr 26, 2022
Compound engine assembly with bleed air
PRATT & WHITNEY CANADA2 citations73
US10934930B2Mar 2, 2021
Auxiliary power unit with variable speed ratio
PRATT & WHITNEY CANADA2 citations73
US10717543B2Jul 21, 2020
Apparatus and methods for powering an electrical device associated with an aircraft rotor
PRATT & WHITNEY CANADA2 citations73
US10696417B2Jun 30, 2020
Auxiliary power unit with excess air recovery
PRATT & WHITNEY CANADA2 citations73
US10590842B2Mar 17, 2020
Compound engine assembly with bleed air
PRATT & WHITNEY CANADA5 citations73
US10501200B2Dec 10, 2019
Engine assembly for an auxiliary power unit
PRATT & WHITNEY CANADA2 citations73
US10253726B2Apr 9, 2019
Engine assembly with combined engine and cooling exhaust
PRATT & WHITNEY CANADA2 citations72
US9957889B2May 1, 2018
Low noise aeroengine inlet system
PRATT & WHITNEY CANADA3 citations72
US9951690B2Apr 24, 2018
Low noise aeroengine inlet system
PRATT & WHITNEY CANADA4 citations72
US10174665B2Jan 8, 2019
Active control flow system and method of cooling and providing active flow control
PRATT & WHITNEY CANADA4 citations71
US11597526B2Mar 7, 2023
Control systems for hybrid electric powerplants
PRATT & WHITNEY CANADA2 citations69
US11530647B2Dec 20, 2022
In flight restart system and method for free turbine engine
PRATT & WHITNEY CANADA0 citations62
US11131245B2Sep 28, 2021
In flight restart system and method for free turbine engine
PRATT & WHITNEY CANADA0 citations62
US11525388B2Dec 13, 2022
Active control flow system and method of cooling and providing active flow control
PRATT & WHITNEY CANADA0 citations61
US10927791B2Feb 23, 2021
Engine assembly with combined engine and cooling exhaust
PRATT & WHITNEY CANADA0 citations61
US11574548B2Feb 7, 2023
Aircraft degraded operation ceiling increase using electric power boost
PRATT & WHITNEY CANADA0 citations52
US10724429B2Jul 28, 2020
Auxiliary power unit with electrically driven compressor
PRATT & WHITNEY CANADA0 citations52
US11214381B2Jan 4, 2022
Aircraft heating assembly with liquid cooled internal combustion engine and heating element using waste heat
PRATT & WHITNEY CANADA0 citations49