Inventor

Frederick M. Schwarz

Inventor

Glastonbury, CT, US

Overview

1977–2021

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 236 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F05Dprimary

F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants19%

F02CGas-turbine plants19%

F01DNon-positive displacement machines or engines, e.g. steam turbines16%

Y02TClimate change mitigation technologies related to transportation13%

F02KJet-propulsion plants12%

F04DNon-positive-displacement pumps6%

B64DEquipment for fitting in or to aircraft4%

F16HGearing2%

F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact1%

F28FDetails of heat-exchange and heat-transfer apparatus, of general application1%

PatentTitleYear

11,125,155Geared turbofan arrangement with core split power ratio2021 11,105,221Geared architecture turbofan engine thermal management system and method2021 11,091,272Aircraft hybrid propulsion fan drive gear system DC motors and generators2021 11,072,429Low pressure environmental control system with safe pylon transit2021 11,073,106Geared architecture for high speed and small volume fan drive turbine2021 11,053,816Turbofan engine front section2021 11,053,843Geared turbofan engine with a high ratio of thrust to turbine volume2021 11,053,815Multi-circuit lubrication system for a turbine engine2021 11,047,337Geared architecture for high speed and small volume fan drive turbine2021 11,047,257Multi-engine coordination during gas turbine engine motoring2021 11,021,981Downstream turbine vane cooling for a gas turbine engine2021 10,982,595Heat exchanger for gas turbine engine mounted in intermediate case2021 10,975,715Non-contact seal assembly for rotational equipment2021 10,941,708Acoustically damped gas turbine engine2021 10,914,242Complex air supply system for gas turbine engine and associated aircraft2021 10,906,657Aircraft system with distributed propulsion2021 10,907,579Gas turbine engine with geared architecture2021 10,890,245Epicyclic gear train2021 10,830,131Turbofan engine bearing and gearbox arrangement2020 10,830,145Intercooled cooling air fleet management system2020 10,830,153Geared turbofan engine with power density range2020 10,830,130Geared turbofan with three turbines all counter-rotating2020 10,823,051Geared turbofan engine with high compressor exit temperature2020 10,823,052Geared turbofan engine with targeted modular efficiency2020 10,823,060Gas turbine engine with short inlet, acoustic treatment and anti-icing features2020 10,823,192Gas turbine engine with short inlet and mistuned fan blades2020 10,823,085High temperature disk conditioning system2020 10,815,889Failure mitigation and failure detection of intercooled cooling air systems2020 10,814,993Inlet cowl deflection limiting strut2020 10,808,610Simplified engine bleed supply with low pressure environmental control system for aircraft2020 10,808,619Intercooled cooling air with advanced cooling system2020 10,801,355Geared turbofan with four star/planetary gear reduction2020 10,794,273Advanced distributed engine architecture-design alternative2020 10,794,290Intercooled cooled cooling integrated air cycle machine2020 10,794,293Turbine section of high bypass turbofan2020 10,794,216Fan drive gear system DC motor and generator2020 10,794,208Non-contact seal assembly for rotational equipment with linkage between adjacent rotors2020 10,794,291Geared turbofan architecture for regional jet aircraft2020 10,794,288Cooled cooling air system for a turbofan engine2020 10,794,295Engine bleed system with multi-tap bleed array2020 10,794,193Air foil with galvanic protection2020 10,794,292Geared turbofan gas turbine engine architecture2020 10,787,933Low-power bowed rotor prevention and monitoring system2020 10,759,545Hybrid electric aircraft system with distributed propulsion2020 10,760,492Cooling air architecture for compact size and performance improvement2020 10,760,488Geared turbofan engine gearbox arrangement2020 10,753,286Geared turbine engine with relatively lightweight propulsor module2020 10,738,703Intercooled cooling air with combined features2020 10,731,661Gas turbine engine with short inlet and blade removal feature2020 10,731,560Intercooled cooling air2020 10,718,233Intercooled cooling air with low temperature bearing compartment air2020 10,704,989Gas turbine engine with lifing calculations based upon actual usage2020 10,669,888Non-contact seal assembly for rotational equipment2020 10,669,890Compartment shielding2020 10,662,880Turbine section of high bypass turbofan2020 10,633,106Alternating starter use during multi-engine motoring2020 10,634,053Electric windmill pump for gearbox durability2020 10,634,051Geared turbofan engine with low pressure environmental control system for aircraft2020 10,626,879Gas turbine engine with mid-compressor bleed2020 10,605,104Multi-circuit lubrication system for a turbine engine2020 10,598,047Low-power bowed rotor prevention system2020 10,590,952Nacelle assembly2020 10,584,608Tuned rotor disk2020 10,584,642Geared architecture with inducer for gas turbine engine2020 10,578,018Geared turbofan engine gearbox arrangement2020 10,570,824Near zero velocity lubrication system for a turbine engine2020 10,570,855Gas turbine engine with geared architecture2020 10,563,582Heat exchanger array2020 10,539,079Bowed rotor start mitigation in a gas turbine engine using aircraft-derived parameters2020 10,526,916Heat exchanger with heat resistant center body2020 10,526,894Short inlet with low solidity fan exit guide vane arrangements2020 10,527,151Gas turbine engine with geared architecture2020 10,508,562Geared turbofan with four star/planetary gear reduction2019 10,502,163Geared turbofan arrangement with core split power ratio2019 10,472,071Hybrid compressor bleed air for aircraft use2019 10,458,332Cooled gas turbine engine cooling air with cold air dump2019 10,451,004Gas turbine engine with low stage count low pressure turbine2019 10,443,507Gas turbine engine bowed rotor avoidance system2019 10,443,612Hollow fan blade with stir welded cover support2019 10,443,543High compressor build clearance reduction2019 10,436,115Heat exchanger for gas turbine engine with support damper mounting2019 10,436,120Exhaust nozzle for an elongated gear turbofan with high bypass ratio2019 10,436,121Elongated geared turbofan with high bypass ratio2019 10,415,478Air mixing systems having mixing chambers for gas turbine engines2019 10,378,359Heat exchanger with precision manufactured flow passages2019 10,371,061Turbine section of high bypass turbofan2019 10,370,992Seal with integral assembly clip and method of sealing2019 10,371,047Geared turbofan engine with targeted modular efficiency2019 10,358,932Segmented non-contact seal assembly for rotational equipment2019 10,316,758Turbofan engine front section2019 10,316,757Exhaust nozzle arrangement for geared turbofan2019 10,309,232Gas turbine engine with stage dependent material selection for blades and disk2019 10,294,871Exhaust nozzle arrangement for geared turbofan2019 10,287,914Gas turbine engine with high speed low pressure turbine section and bearing support features2019 10,288,010Geared turbofan gas turbine engine architecture2019 10,287,917Turbofan engine front section2019 10,288,011Geared turbofan gas turbine engine architecture2019 10,287,982Folded heat exchanger for cooled cooling air2019 10,280,794Compartment shielding2019 10,280,757Gas turbine engine airfoil with auxiliary flow channel2019 10,267,180Geared architecture turbofan engine thermal management system and method2019 10,267,228Geared turbofan arrangement with core split power ratio2019 10,253,695Heat exchanger for cooled cooling air with adjustable damper2019 10,247,004Heat exchanger with decreased core cross-sectional areas2019 10,240,526Gas turbine engine with high speed low pressure turbine section2019 10,240,531Heat exchange module for a turbine engine2019 10,234,359Gas turbine engine with lifing calculations based upon actual usage2019 10,233,774Three spool turbofan engine with low noise intermediate turbine rotor2019 10,233,773Monitoring system for non-ferrous metal particles2019 10,215,027Aluminum fan blade construction with welded cover2019 10,202,185Geared turbofan with improved spinner2019 10,196,989Gas turbine engine gear train2019 10,190,495Geared turbofan engine with inter-shaft deflection feature2019 10,190,496Turbofan engine bearing and gearbox arrangement2019 10,174,678Bowed rotor start using direct temperature measurement2019 10,167,813Gas turbine engine with fan variable area nozzle to reduce fan instability2019 10,151,247Heat exchanger suspension system with pipe-to-linkage spring rate ratio2018 10,144,519Compressor bleed air supply for an aircraft environmental control system2018 10,138,809Geared turbofan engine with a high ratio of thrust to turbine volume2018 10,125,693Geared turbofan engine with power density range2018 10,125,691Bowed rotor start using a variable position starter valve2018 10,119,466Geared turbofan engine with high compressor exit temperature2018 10,107,131Fan drive thrust balance2018 10,107,135Gas turbine engine with gearbox health features2018 10,107,126Non-contact seal assembly for rotational equipment2018 10,107,231Gas turbine engine with geared architecture2018 10,100,745Geared turbine engine with relatively lightweight propulsor module2018 10,094,278Turbofan engine bearing and gearbox arrangement2018 10,094,296Gas turbine engine with rotor bore heating2018 10,093,424Low pressure environmental control system with safe pylon transit2018 10,082,105Gas turbine engine with geared architecture2018 10,066,504Turbofan engine main bearing arrangement2018 10,060,282Geared turbofan with integrally bladed rotor2018 10,060,271Fan airfoil shrouds with area ruling in the shrouds2018 10,060,280Turbine cavity sealing assembly2018 10,060,353Heat exchanger for cooled cooling air2018 10,060,357Turbine section of high bypass turbofan2018 10,054,059Nacelle and compressor inlet arrangements2018 10,047,628Gas turbine engine with fan variable area nozzle for low fan pressure ratio2018 10,036,351Geared turbofan with three co-rotating turbines2018 10,036,350Geared turbofan with three turbines all co-rotating2018 10,036,316Geared turbofan engine with high compressor exit temperature2018 10,030,586Geared turbofan gas turbine engine architecture2018 10,018,120Gas turbine engine control for rotor bore heating2018 10,018,119Geared architecture with inducer for gas turbine engine2018 9,995,222High temperature disk conditioning system2018 9,976,437Epicyclic gear train2018 9,976,489Gas turbine engine for long range aircraft2018 9,970,323Geared turbofan engine with optimized diffuser case flange location2018 9,964,036Simplified engine bleed supply with low pressure environmental control system for aircraft2018 9,957,832Variable area turbine2018 9,915,165'Geared turbofan engine with low pressure environmental control system for aircraft'2018 9,897,001'Compressor areas for high overall pressure ratio gas turbine engine'2018 9,850,821Gas turbine engine with fan-tied inducer section2017 9,845,726Gas turbine engine with high speed low pressure turbine section2017 9,835,052Gas turbine engine with high speed low pressure turbine section and bearing support features2017 9,828,944Geared turbofan gas turbine engine architecture2017 9,816,442'Gas turbine engine with high speed low pressure turbine section'2017 9,752,511'Geared architecture for high speed and small volume fan drive turbine'2017 9,739,205'Geared turbofan with a gearbox upstream of a fan drive turbine'2017 9,739,206'Geared turbofan gas turbine engine architecture'2017 9,732,629'Turbofan engine main bearing arrangement'2017 9,695,751'Geared turbofan gas turbine engine architecture'2017 9,631,558'Geared architecture for high speed and small volume fan drive turbine'2017 9,611,859'Gas turbine engine with high speed low pressure turbine section and bearing support features'2017 9,540,948'Gas turbine engine with high speed low pressure turbine section and bearing support features'2017 9,506,353'Lightweight shrouded fan blade'2016 9,500,126'Geared turbofan engine gearbox arrangement'2016 9,494,084'Gas turbine engine with fan variable area nozzle for low fan pressure ratio'2016 9,221,120'Aluminum fan blade construction with welded cover'2015 9,222,417'Geared turbofan gas turbine engine architecture'2015 9,103,227'Gas turbine engine with fan-tied inducer section'2015 9,074,485'Geared turbofan with three turbines all counter-rotating'2015 9,051,897'System for optimizing power usage from damaged fan blades'2015 9,010,085'Turbine section of high bypass turbofan'2015 8,997,500'Gas turbine engine oil buffering'2015 8,973,374'Blades in a turbine section of a gas turbine engine'2015 8,939,864'Gas turbine engine lubrication'2015 8,935,913'Geared turbofan gas turbine engine architecture'2015 8,915,700'Gas turbine engine with fan-tied inducer section and multiple low pressure turbine sections'2014 8,899,915'Geared architecture for high speed and small volume fan drive turbine'2014 8,894,538'Gas turbine engine with geared architecture'2014 8,887,487'Geared turbofan gas turbine engine architecture'2014 8,869,504'Geared turbofan engine gearbox arrangement'2014 8,858,388'Gas turbine engine gear train'2014 8,858,182'Fan blade with sheath'2014 8,850,793'Turbine section of high bypass turbofan'2014 8,844,265'Turbine section of high bypass turbofan'2014 8,807,477'Gas turbine engine compressor arrangement'2014 8,800,914'Gas turbine engine with low stage count low pressure turbine'2014 8,776,952'Thermal management system for turbofan engines'2014 8,756,908'Fundamental gear system architecture'2014 8,747,055'Geared architecture for high speed and small volume fan drive turbine'2014 8,708,863'Epicyclic gear train'2014 8,695,920'Gas turbine engine with low stage count low pressure turbine'2014 8,534,043'Air-oil heat exchanger'2013 8,511,605'Gas turbine engine with low stage count low pressure turbine'2013 8,511,604'Gas turbine engine with low stage count low pressure turbine'2013 8,480,460'Cabin air supercharged aircraft internal combustion engine'2013 8,459,035'Gas turbine engine with low fan pressure ratio'2013 8,448,895'Gas turbine engine compressor arrangement'2013 8,161,726'Cooling exchanger duct'2012 8,127,828'Air-oil heat exchanger'2012 8,015,795'Aircraft combination engines plural airflow conveyances system'2011 8,011,883'Gas turbine engine blade tip clearance apparatus and method'2011 7,908,840'Turbine engine with integrated generator having shared lubrication system'2011 7,857,257'Aircraft thermal management system with reduced exhaust re-ingestion'2010 7,836,680'Aircraft combination engines thermal management system'2010 7,824,151'Zero running clearance centrifugal compressor'2010 7,810,311'Cooling exchanger ducts'2010 7,765,788'Cooling exchanger duct'2010 7,762,056'Aircraft combination engines exhaust thrust recovery'2010 7,690,188'Combination engines for aircraft'2010 7,690,189'Aircraft combination engines inlet airflow control system'2010 7,485,981'Aircraft combination engines complemental connection and operation'2009 7,464,585'Method and apparatus for sensing integrity degradation in turbine engine components'2008 7,407,369'Gas turbine engine blade tip clearance apparatus and method'2008 7,341,426'Gas turbine engine blade tip clearance apparatus and method'2008 5,224,332'Modulated gas turbine cooling air'1993 5,157,914'Modulated gas turbine cooling air'1992 5,081,830'Method of restoring exhaust gas temperature margin in a gas turbine engine'1992 4,869,640'Controlled temperature rotating seal'1989 4,708,588'Turbine cooling air supply system'1987 4,697,981'Rotor thrust balancing'1987 4,621,520'Leakage detection and tracking system'1986 4,525,998'Clearance control for gas turbine engine'1985 4,487,016'Modulated clearance control for an axial flow rotary machine'1984 4,474,001'Cooling system for the electrical generator of a turbofan gas turbine engine'1984 4,471,938'Modulating poppet valve'1984 4,332,133'Compressor bleed system for cooling and clearance control'1982 4,318,668'Seal means for a gas turbine engine'1982 4,279,123'External gas turbine engine cooling for clearance control'1981 4,257,222'Seal clearance control system for a gas turbine'1981 4,242,042'Temperature control of engine case for clearance control'1980 4,213,296'Seal clearance control system for a gas turbine'1980 4,053,254'Turbine case cooling system'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–2021Patents assigned to UNITED TECHNOLOGIES CORP (222)· patent assignee history

1977–2021Based in Glastonbury, CT, US· patent location history

1993–2020Patents assigned to SCHWARZ FREDERICK M (38)· patent assignee history

2013–2020Patents assigned to SUCIU GABRIEL L (12)· patent assignee history

2014–2019Patents assigned to KUPRATIS DANIEL BERNARD (9)· patent assignee history

2020–2021Patents assigned to RAYTHEON TECH CORP (50)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
UNITED TECHNOLOGIES CORP	222	1977–2021
RAYTHEON TECH CORP	50	2020–2021
SCHWARZ FREDERICK Mself	38	1993–2020
SUCIU GABRIEL L	12	2013–2020
KUPRATIS DANIEL BERNARD	9	2014–2019

Locations

Location	Patents	Span
Glastonbury, CT, US	236	1977–2021