Inventor
DUONG HIEN
CA54 patents
⚠️ This page may combine multiple inventors who share the name “DUONG HIEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PRATT & WHITNEY CANADA
48 patentsUS9726084B2Aug 8, 2017
Compressor bleed self-recirculating system
PRATT & WHITNEY CANADA23 citations94
US11572897B1Feb 7, 2023
Compressor with casing treatment
PRATT & WHITNEY CANADA13 citations85
US9732762B2Aug 15, 2017
Compressor airfoil
PRATT & WHITNEY CANADA17 citations84
US9644639B2May 9, 2017
Shroud treatment for a centrifugal compressor
PRATT & WHITNEY CANADA8 citations84
US9845684B2Dec 19, 2017
Airfoil with stepped spanwise thickness distribution
PRATT & WHITNEY CANADA7 citations82
US9765795B2Sep 19, 2017
Compressor rotor airfoil
PRATT & WHITNEY CANADA10 citations82
US10570925B2Feb 25, 2020
Diffuser pipe with splitter vane
PRATT & WHITNEY CANADA6 citations81
US9926942B2Mar 27, 2018
Diffuser pipe with vortex generators
PRATT & WHITNEY CANADA11 citations80
US11391296B1Jul 19, 2022
Diffuser pipe with curved cross-sectional shapes
PRATT & WHITNEY CANADA3 citations73
US11143201B2Oct 12, 2021
Impeller tip cavity
PRATT & WHITNEY CANADA2 citations73
US10876549B2Dec 29, 2020
Tandem stators with flow recirculation conduit
PRATT & WHITNEY CANADA5 citations73
US10578125B2Mar 3, 2020
Compressor stator vane with leading edge forward sweep
PRATT & WHITNEY CANADA4 citations73
US10465539B2Nov 5, 2019
Rotor casing
PRATT & WHITNEY CANADA2 citations73
US9810157B2Nov 7, 2017
Compressor shroud reverse bleed holes
PRATT & WHITNEY CANADA4 citations73
US10760424B2Sep 1, 2020
Compressor rotor airfoil
PRATT & WHITNEY CANADA2 citations71
US10718215B2Jul 21, 2020
Airfoil with stepped spanwise thickness distribution
PRATT & WHITNEY CANADA5 citations71
US10443390B2Oct 15, 2019
Rotary airfoil
PRATT & WHITNEY CANADA4 citations71
US9803652B2Oct 31, 2017
Centrifugal compressor diffuser and method for controlling same
PRATT & WHITNEY CANADA6 citations71
US12540628B1Feb 3, 2026
Impeller blade turning distribution
PRATT & WHITNEY CANADA0 citations62
US12398673B2Aug 26, 2025
Air intake plenum with struts
PRATT & WHITNEY CANADA0 citations62
US12320274B2Jun 3, 2025
Compressor stator with leading edge fillet
PRATT & WHITNEY CANADA0 citations62
US11965459B2Apr 23, 2024
Air intake plenum with struts
PRATT & WHITNEY CANADA0 citations62
US11499475B2Nov 15, 2022
Fan assembly having flow recirculation circuit with rotating airfoils
PRATT & WHITNEY CANADA0 citations62
US11286951B2Mar 29, 2022
Diffuser pipe with exit scallops
PRATT & WHITNEY CANADA0 citations62
US11268536B1Mar 8, 2022
Impeller exducer cavity with flow recirculation
PRATT & WHITNEY CANADA1 citations62
US11225870B2Jan 18, 2022
Impeller splitter optimization
PRATT & WHITNEY CANADA0 citations62
US11136993B2Oct 5, 2021
Diffuser pipe with asymmetry
PRATT & WHITNEY CANADA0 citations62
US11118466B2Sep 14, 2021
Compressor stator with leading edge fillet
PRATT & WHITNEY CANADA1 citations62
US10669854B2Jun 2, 2020
Impeller
PRATT & WHITNEY CANADA1 citations62
US12352215B2Jul 8, 2025
Devices and methods for guiding bleed air in a turbofan engine
PRATT & WHITNEY CANADA0 citations60
US11220910B2Jan 11, 2022
Compressor stator
PRATT & WHITNEY CANADA1 citations60
US11215196B2Jan 4, 2022
Diffuser pipe with splitter vane
PRATT & WHITNEY CANADA0 citations60
US9500084B2Nov 22, 2016
Impeller
PRATT & WHITNEY CANADA2 citations60
US10781705B2Sep 22, 2020
Inter-compressor flow divider profiling
PRATT & WHITNEY CANADA1 citations59
US12071959B1Aug 27, 2024
Compressor casing with slots and grooves
PRATT & WHITNEY CANADA1 citations57
US10823197B2Nov 3, 2020
Vane diffuser and method for controlling a compressor having same
PRATT & WHITNEY CANADA1 citations56
US12590590B2Mar 31, 2026
Aircraft engine impeller with exducer shroud forward sweep
PRATT & WHITNEY CANADA0 citations52
US12571403B2Mar 10, 2026
Non-linear impeller backsweep
PRATT & WHITNEY CANADA0 citations52
US12486856B2Dec 2, 2025
Diffuser pipe for an aircraft propulsion system
PRATT & WHITNEY CANADA0 citations52
US12473835B2Nov 18, 2025
Vane array structure with recessed stator vanes
PRATT & WHITNEY CANADA0 citations52
US12410714B2Sep 9, 2025
Airfoil thickness profile for minimizing tip leakage flow
PRATT & WHITNEY CANADA0 citations52
US12055057B2Aug 6, 2024
Engine strut flow control
PRATT & WHITNEY CANADA0 citations52
US12018583B2Jun 25, 2024
Impeller with hub sweep
PRATT & WHITNEY CANADA0 citations52
US11639666B2May 2, 2023
Stator with depressions in gaspath wall adjacent leading edges
PRATT & WHITNEY CANADA0 citations52
US11435079B2Sep 6, 2022
Diffuser pipe with axially-directed exit
PRATT & WHITNEY CANADA0 citations52
US11415012B1Aug 16, 2022
Tandem stator with depressions in gaspath wall
PRATT & WHITNEY CANADA0 citations52
US11378005B1Jul 5, 2022
Compressor diffuser and diffuser pipes therefor
PRATT & WHITNEY CANADA0 citations52
US10823195B2Nov 3, 2020
Diffuser pipe with non-axisymmetric end wall
PRATT & WHITNEY CANADA0 citations52
NICHOLS JASON
2 patentsShowing the top 50 of 54 patents by PatentIndex Score.