Inventor
KUPRATIS DANIEL B
US52 patents
⚠️ This page may combine multiple inventors who share the name “KUPRATIS DANIEL B”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UNITED TECHNOLOGIES CORP
18 patentsUS7513120B2Apr 7, 2009
Electrically coupled supercharger for a gas turbine engine
UNITED TECHNOLOGIES CORP84 citations98
US9341121B2May 17, 2016
Gas turbine engine with intercooling turbine section and intercooling turbine section bypass
UNITED TECHNOLOGIES CORP23 citations92
US8365514B1Feb 5, 2013
Hybrid turbofan engine
UNITED TECHNOLOGIES CORP25 citations92
US10125722B2Nov 13, 2018
Turbine engine with a turbo-compressor
UNITED TECHNOLOGIES CORP17 citations86
US10801443B2Oct 13, 2020
Fan drive gear system electrical conditioning circuit for hybrid electric gas turbine engine
UNITED TECHNOLOGIES CORP2 citations73
US10041408B2Aug 7, 2018
Turbine engine with a turbo-compressor
UNITED TECHNOLOGIES CORP2 citations73
US9752585B2Sep 5, 2017
Gas turbine engine architecture with intercooled twin centrifugal compressor
UNITED TECHNOLOGIES CORP5 citations73
US8371806B2Feb 12, 2013
Gas turbine engine having core auxiliary duct passage
UNITED TECHNOLOGIES CORP5 citations73
US11530635B2Dec 20, 2022
Fluid injection systems for gas turbine engines
UNITED TECHNOLOGIES CORP2 citations72
US10514002B2Dec 24, 2019
Variable exhaust mixer and cooler for a three-stream gas turbine engine
UNITED TECHNOLOGIES CORP2 citations72
US10161316B2Dec 25, 2018
Engine bypass valve
UNITED TECHNOLOGIES CORP5 citations72
US10094279B2Oct 9, 2018
Reverse-flow core gas turbine engine with a pulse detonation system
UNITED TECHNOLOGIES CORP2 citations72
US10030606B2Jul 24, 2018
Variable exhaust mixer and cooler for a three-stream gas turbine engine
UNITED TECHNOLOGIES CORP4 citations72
US10119477B2Nov 6, 2018
Gas turbine engine with a multi-spool driven fan
UNITED TECHNOLOGIES CORP2 citations70
US11066989B2Jul 20, 2021
Gas turbine engine architecture with nested concentric combustor
UNITED TECHNOLOGIES CORP0 citations54
US10100731B2Oct 16, 2018
Turbine engine with a turbo-compressor
UNITED TECHNOLOGIES CORP0 citations52
US11236639B2Feb 1, 2022
Gas turbine engine and an airflow control system
UNITED TECHNOLOGIES CORP0 citations47
US10267229B2Apr 23, 2019
Gas turbine engine architecture with nested concentric combustor
UNITED TECHNOLOGIES CORP0 citations44
RTX CORP
11 patentsUS12253021B2Mar 18, 2025
Transmission and method for control of boost spool
RTX CORP1 citations64
US12180898B1Dec 31, 2024
Regulating core air bled from a turbine engine core flowpath
RTX CORP1 citations63
US12398679B2Aug 26, 2025
Transmission and method for control of boost spool
RTX CORP0 citations62
US12466548B2Nov 11, 2025
Aircraft vertical stabilizer with air system
RTX CORP0 citations60
US12503977B2Dec 23, 2025
Tailoring aircraft powerplant split line parameter with inflatable bladder
RTX CORP0 citations52
US12392296B2Aug 19, 2025
Powerplant with multiple integrated gas turbine engines
RTX CORP0 citations52
US12326114B2Jun 10, 2025
Gas turbine engine with core debris protection
RTX CORP0 citations52
US12312998B1May 27, 2025
Actuatable airflow splitter for an aircraft powerplant
RTX CORP0 citations52
US12209534B1Jan 28, 2025
Aircraft engine entrained particle separation system and method
RTX CORP0 citations52
US12459631B2Nov 4, 2025
Aircraft vertical stabilizer with moveable propulsion system(s)
RTX CORP0 citations49
US12420914B2Sep 23, 2025
Aircraft airframe component with air system
RTX CORP0 citations49
KUPRATIS DANIEL B
10 patentsUS8516789B2Aug 27, 2013
Gas turbine engine with aft core driven fan section
KUPRATIS DANIEL B41 citations94
US9003808B2Apr 14, 2015
Turbofan with gear-driven compressor and fan-driven core
KUPRATIS DANIEL B19 citations92
US8161728B2Apr 24, 2012
Gas turbines with multiple gas flow paths
KUPRATIS DANIEL B25 citations92
US8104265B2Jan 31, 2012
Gas turbines with multiple gas flow paths
KUPRATIS DANIEL B37 citations92
US9140188B2Sep 22, 2015
Gas turbine engine with intercooling turbine section
KUPRATIS DANIEL B10 citations84
US9057328B2Jun 16, 2015
Gas turbine engine with intercooling turbine section
KUPRATIS DANIEL B17 citations84
US9021778B2May 5, 2015
Differential gear system with carrier drive
KUPRATIS DANIEL B15 citations84
US8935923B2Jan 20, 2015
Gas turbine engine with intercooling turbine section and intercooling turbine section bypass
KUPRATIS DANIEL B7 citations84
US9279388B2Mar 8, 2016
Gas turbine engine with two-spool fan and variable vane turbine
KUPRATIS DANIEL B5 citations73
US9188083B2Nov 17, 2015
Gas turbine engine with auxiliary fan
KUPRATIS DANIEL B3 citations63
RAYTHEON TECH CORP
9 patentsUS11639690B1May 2, 2023
Boost spool flow control and generator load matching via load compressor
RAYTHEON TECH CORP7 citations86
US11692491B1Jul 4, 2023
Transmission and method for control of boost spool
RAYTHEON TECH CORP3 citations73
US12163476B1Dec 10, 2024
Inter-rotating assembly power coupling system for turbine engine
RAYTHEON TECH CORP1 citations62
US11976598B2May 7, 2024
Transmission and method for control of boost spool
RAYTHEON TECH CORP1 citations62
US11898490B2Feb 13, 2024
Transmission and method for control of boost spool
RAYTHEON TECH CORP1 citations62
US11649763B1May 16, 2023
Rating control architecture and method for hybrid electric engine
RAYTHEON TECH CORP1 citations61
US12385434B2Aug 12, 2025
Aircraft powerplant with boosted gas turbine engine
RAYTHEON TECH CORP0 citations52
US12244209B2Mar 4, 2025
Aircraft powerplant with boosted gas turbine engine
RAYTHEON TECH CORP0 citations52
US11692493B1Jul 4, 2023
Fluidic valve configuration for boost spool engine
RAYTHEON TECH CORP0 citations52
NORRIS JAMS W
1 patentNORRIS JAMES W
1 patentShowing the top 50 of 52 patents by PatentIndex Score.