Inventor · disambiguated record
John E. Holowczak
Also filed as: HOLOWCZAK JOHN · HOLOWCZAK JOHN E
38 granted patents·19 pending applications·566 citations·filing 1993–2024
97Inventor score
Files withUNITED TECHNOLOGIES CORP22RAYTHEON TECH CORP10HAMILTON SUNDSTRAND CORP7HOLOWCZAK JOHN E5RTX CORP2
Top patents by PatentIndex Score
57 records- 0195US6696144B2Hybrid monolithic ceramic and ceramic matrix composite airfoil and method for making the sameUNITED TECHNOLOGIES CORP·Filed 2002·Granted Feb 24, 2004·67 cites·13 claims
- 0295US6451416B1Hybrid monolithic ceramic and ceramic matrix composite airfoil and method for making the sameUNITED TECHNOLOGIES CORP·Filed 1999·Granted Sep 17, 2002·101 cites·20 claims
- 0394US11697878B2Continuous multiple tow coating reactorRAYTHEON TECH CORP·Filed 2021·Granted Jul 11, 2023·2 cites·17 claims
- 0494US10941491B2Continuous multiple tow coating reactorUNITED TECHNOLOGIES CORP·Filed 2017·Granted Mar 9, 2021·6 cites·6 claims
- 0592US10710111B2Continuous tow fiber coating reactorUNITED TECHNOLOGIES CORP·Filed 2017·Granted Jul 14, 2020·4 cites·22 claims
- 0690US7063894B2Environmental barrier coating for silicon based substratesUNITED TECHNOLOGIES CORP·Filed 2003·Granted Jun 20, 2006·47 cites·10 claims
- 0788US8939728B2Hybrid part made from monolithic ceramic skin and CMC coreMCCAFFREY MICHAEL G·Filed 2011·Granted Jan 27, 2015·9 cites·12 claims
- 0887US12270107B2Continuous multiple tow coating reactorRAYTHEON TECH CORP·Filed 2023·Granted Apr 8, 2025·0 cites·20 claims
- 0986US6617036B2Barrier layer for silicon containing substrateUNITED TECHNOLOGIES CORP·Filed 2001·Granted Sep 9, 2003·28 cites·31 claims
- 1085US5542820AEngineered ceramic components for the leading edge of a helicopter rotor bladeUNITED TECHNOLOGIES CORP·Filed 1994·Granted Aug 6, 1996·73 cites·23 claims
- 1183US7422671B2Non-line-of-sight process for coating complexed shaped structuresUNITED TECHNOLOGIES CORP·Filed 2004·Granted Sep 9, 2008·24 cites·29 claims
- 1282US9505145B2Hybrid part made from monolithic ceramic skin and CMC coreUNITED TECHNOLOGIES CORP·Filed 2014·Granted Nov 29, 2016·3 cites·10 claims
- 1380US11261741B2Ceramic airfoil trailing end configurationUNITED TECHNOLOGIES CORP·Filed 2019·Granted Mar 1, 2022·2 cites·15 claims
- 1479US11668198B2Fiber-reinforced self-healing environmental barrier coatingUNITED TECHNOLOGIES CORP·Filed 2018·Granted Jun 6, 2023·1 cites·16 claims
- 1578US6447254B1Low dieletric constant erosion resistant materialSIKORSKY AIRCRAFT CORP·Filed 2001·Granted Sep 10, 2002·33 cites·31 claims
- 1677US7473049B2Ceramic-to-metal shaft assemblyHAMILTON SUNDSTRAND·Filed 2006·Granted Jan 6, 2009·7 cites·21 claims
- 1774US12000049B2Alternating and continuous microwave fiber tow coating thermo-chemical reactor furnaceRAYTHEON TECH CORP·Filed 2021·Granted Jun 4, 2024·0 cites·16 claims
- 1874US10227888B2Variable vane systemsUNITED TECHNOLOGIES CORP·Filed 2015·Granted Mar 12, 2019·2 cites·20 claims
- 1974US5506018AJoining non-coplanar panels and structures of fiber reinforced compositesUNITED TECHNOLOGIES CORP·Filed 1995·Granted Apr 9, 1996·32 cites·5 claims
- 2074US5470222AHeating unit with a high emissivity, porous ceramic flame holderUNITED TECHNOLOGIES CORP·Filed 1993·Granted Nov 28, 1995·32 cites·18 claims
- 2173US7538045B2Coating process to enable electrophoretic depositionUNITED TECHNOLOGIES CORP·Filed 2006·Granted May 26, 2009·3 cites·9 claims
- 2272US7762768B2Mechanical support of a ceramic gas turbine vane ringUNITED TECHNOLOGIES CORP·Filed 2006·Granted Jul 27, 2010·13 cites·22 claims
- 2368US12173431B2Fabric structure control using ultrasonic probeRAYTHEON TECH CORP·Filed 2022·Granted Dec 24, 2024·0 cites·20 claims
- 2468US2025263343A1Ceramic componentRTX CORP·Filed 2024·Application pending·0 cites
- 2566US7527479B2Mechanical coupling for a rotor shaft assembly of dissimilar materialsHAMILTON SUNDSTRAND CORP·Filed 2005·Granted May 5, 2009·12 cites·14 claims
- 2665US8869673B2Structural panel with ballistic protectionTOWNSEND WILLIAM A·Filed 2007·Granted Oct 28, 2014·10 cites·23 claims
- 2763US12292242B2Surface texture enhanced glass-ceramic matrix composite heat exchangerHAMILTON SUNDSTRAND CORP·Filed 2022·Granted May 6, 2025·0 cites·9 claims
- 2860US10710154B2Casting core removal through thermal cyclingUNITED TECHNOLOGIES CORP·Filed 2018·Granted Jul 14, 2020·0 cites·15 claims
- 2959US11203947B2Airfoil having internally cooled wall with liner and shellRAYTHEON TECH CORP·Filed 2020·Granted Dec 21, 2021·0 cites·19 claims
- 3059US11021971B2CMC blade with monolithic ceramic platform and dovetailUNITED TECHNOLOGIES CORP·Filed 2014·Granted Jun 1, 2021·1 cites·19 claims
- 3159US2024173743A1Slot with coating and method of coating a slotRAYTHEON TECH CORP·Filed 2022·Application pending·0 cites
- 3259US2023192560A1Freeze drying of composites for filament spreadingRAYTHEON TECH CORP·Filed 2022·Application pending·0 cites
- 3357US9103633B2Lightweight projectile resistant armor systemHOLOWCZAK JOHN E·Filed 2007·Granted Aug 11, 2015·4 cites·17 claims
- 3456US2023407469A1Continuous atmospheric pressure cvd tow coater process with in-situ air leak monitoringRAYTHEON TECH CORP·Filed 2022·Application pending·0 cites
- 3555US8640590B2Armor system having ceramic composite with improved architectureHOLOWCZAK JOHN E·Filed 2008·Granted Feb 4, 2014·3 cites·15 claims
- 3655US6174481B1Method for forming cast tooling for polymer moldingLEAR AUTOMOTIVE DEARBORN INC·Filed 1998·Granted Jan 16, 2001·18 cites·11 claims
- 3754US12024458B2Glass-ceramic matrix composite feedstock and formingHAMILTON SUNDSTRAND CORP·Filed 2020·Granted Jul 2, 2024·0 cites·16 claims
- 3854US9410428B2Turbomachine with clamp coupling shaft and rotor hub togetherUNITED TECHNOLOGIES CORP·Filed 2012·Granted Aug 9, 2016·1 cites·15 claims
- 3954US2021339515A1Ceramic matrix composite laminate tube sheet and method for making the sameHAMILTON SUNDSTRAND CORP·Filed 2021·Application pending·0 cites
- 4053US5474635AJoining non-coplanar panels and structures of fiber reinforced compositesUNITED TECHNOLOGIES CORP·Filed 1994·Granted Dec 12, 1995·15 cites·11 claims
- 4152US11286783B2Airfoil with CMC liner and multi-piece monolithic ceramic shellRAYTHEON TECH CORP·Filed 2020·Granted Mar 29, 2022·0 cites·19 claims
- 4252US9097496B2Lightweight projectile resistant armor system with surface enhancementBIRD CONNIE E·Filed 2007·Granted Aug 4, 2015·1 cites·14 claims
- 4352US2025382686A1Reactive infiltration with silicide forming binary alloysRTX CORP·Filed 2024·Application pending·0 cites
- 4450US2013089811A1Seal assembly and method for self-healing glass sealHOLOWCZAK JOHN E·Filed 2009·Application pending·0 cites
- 4549US2025027564A1Piston ringHAMILTON SUNDSTRAND CORP·Filed 2024·Application pending·0 cites
- 4648US2019144327A1Transparent articles and methods of making transparent articlesUNITED TECHNOLOGIES CORP·Filed 2017·Application pending·0 cites
- 4748US2016013693A1Strand layout for reduced ac winding lossHAMILTON SUNDSTRAND CORP·Filed 2014·Application pending·0 cites
- 4848US2005258577A1Method of producing unitary multi-element ceramic casting cores and integral core/shell systemHOLOWCZAK JOHN E·Filed 2004·Application pending·0 cites
- 4947US2019233324A1High temperature oxidation protection for compositesGOODRICH CORP·Filed 2018·Application pending·0 cites
- 5046US5623988APolymeric heat exchanger with ceramic material insertGAS RES INST·Filed 1995·Granted Apr 29, 1997·12 cites·25 claims
Showing the top 50 of 57 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →