Inventor · disambiguated record
Mahmoud H. Abd Elhamid
Also filed as: ABD ELHAMID MAHMOUD · ABD ELHAMID MAHMOUD H
103 granted patents·27 pending applications·591 citations·filing 2001–2020
99Inventor score
Files withGM GLOBAL TECH OPERATIONS INC36GM GLOBAL TECH OPERATIONS LLC35ABD ELHAMID MAHMOUD H24GEN MOTORS CORP9DADHEECH GAYATRI VYAS7
Top patents by PatentIndex Score
130 records- 0199US9252411B2Multifunction battery separatorGM GLOBAL TECH OPERATIONS INC·Filed 2013·Granted Feb 2, 2016·50 cites·20 claims
- 0298US10714756B2Metal deposition methods for forming bimetallic structures, batteries incorporating bipolar current collectors made therefrom, and applications thereofGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Jul 14, 2020·15 cites·11 claims
- 0398US9869281B2Bi-fuel vehicleGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted Jan 16, 2018·16 cites·20 claims
- 0497US8956785B2Amorphous carbon coatings for fuel cell bipolar platesGM GLOBAL TECH OPERATIONS INC·Filed 2013·Granted Feb 17, 2015·17 cites·15 claims
- 0596US7625654B2Ultra-low loadings of Au for stainless steel bipolar platesGM GLOBAL TECH OPERATIONS INC·Filed 2005·Granted Dec 1, 2009·40 cites·9 claims
- 0696US6811918B2Low contact resistance PEM fuel cellGEN MOTORS CORP·Filed 2001·Granted Nov 2, 2004·63 cites·14 claims
- 0795US9249931B2Fluid storage tankGM GLOBAL TECH OPERATIONS INC·Filed 2013·Granted Feb 2, 2016·16 cites·16 claims
- 0895US8728680B2Method to enhance the durability of conductive carbon coating of PEM fuel cell bipolar platesMIKHAIL YOUSSEF M·Filed 2012·Granted May 20, 2014·16 cites·8 claims
- 0995US6942941B2Adhesive bonds for metalic bipolar platesGEN MOTORS CORP·Filed 2003·Granted Sep 13, 2005·70 cites·36 claims
- 1094US11309588B1Motion-generating mechanisms for desulfation of lead-acid batteriesGM GLOBAL TECH OPERATIONS LLC·Filed 2020·Granted Apr 19, 2022·2 cites·15 claims
- 1194US9878611B1Vehicle with natural gas storage arrayGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Jan 30, 2018·14 cites·20 claims
- 1294US8758957B2Graphene coated SS bipolar platesDADHEECH GAYATRI VYAS·Filed 2008·Granted Jun 24, 2014·17 cites·21 claims
- 1393US10665913B2Thermal propagation mitigation for HV battery modulesGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted May 26, 2020·7 cites·18 claims
- 1492US6866958B2Ultra-low loadings of Au for stainless steel bipolar platesGEN MOTORS CORP·Filed 2002·Granted Mar 15, 2005·39 cites·27 claims
- 1591US6827747B2PEM fuel cell separator plateGEN MOTORS CORP·Filed 2002·Granted Dec 7, 2004·37 cites·12 claims
- 1689US11145897B2Electrolyte membraneGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Oct 12, 2021·2 cites·18 claims
- 1789US10998578B2Electrolyte membraneGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted May 4, 2021·2 cites·19 claims
- 1888US11125392B2Innovative thermal management approaches of conformable tanksGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Sep 21, 2021·3 cites·20 claims
- 1987US11309589B1Motion-generating pumps for desulfation of lead-acid batteriesGM GLOBAL TECH OPERATIONS LLC·Filed 2020·Granted Apr 19, 2022·1 cites·18 claims
- 2086US11198349B2Antimicrobial treatment for HVAC systemsGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Dec 14, 2021·2 cites·17 claims
- 2186US10054267B2Pressure vessel arrayGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Aug 21, 2018·4 cites·17 claims
- 2286US9249933B2Fluid storage tankGM GLOBAL TECH OPERATIONS INC·Filed 2014·Granted Feb 2, 2016·9 cites·21 claims
- 2386US9011667B2Nanotube assembly, bipolar plate and process of making the sameABD ELHAMID MAHMOUD H·Filed 2007·Granted Apr 21, 2015·7 cites·13 claims
- 2484US11398653B2Cure-in-place lightweight thermally-conductive interfaceGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Granted Jul 26, 2022·5 cites·21 claims
- 2584US9874311B2Composite pressure vessel having a third generation advanced high strength steel (AHSS) filament reinforcementGM GLOBAL TECH OPERATIONS LLC·Filed 2014·Granted Jan 23, 2018·5 cites·21 claims
- 2684US8778562B2Method of depositing durable thin gold coating on fuel cell bipolar platesBALOGH MICHAEL P·Filed 2012·Granted Jul 15, 2014·3 cites·17 claims
- 2783US9328868B2Method of increasing storage capacity of natural gas tankGM GLOBAL TECH OPERATIONS INC·Filed 2014·Granted May 3, 2016·5 cites·11 claims
- 2883US7550222B2Fuel cell component having a durable conductive and hydrophilic coatingGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Jun 23, 2009·6 cites·8 claims
- 2982US8182963B2Low-cost manganese-stabilized austenitic stainless steel alloys, bipolar plates comprising the alloys, and fuel cell systems comprising the bipolar platesABD ELHAMID MAHMOUD H·Filed 2009·Granted May 22, 2012·4 cites·3 claims
- 3081US10476105B2Self-healing gel-type electrolyte compositeGM GLOBAL TECH OPERATIONS LLC·Filed 2017·Granted Nov 12, 2019·1 cites·18 claims
- 3181US7749631B2Fuel cell separator plate coatingGM GLOBAL TECH OPERATIONS INC·Filed 2005·Granted Jul 6, 2010·4 cites·14 claims
- 3280US11235748B2Use of adjustable battery system within a vehicle with an HV battery or fuel cell systemGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Feb 1, 2022·3 cites·15 claims
- 3380US9281703B2Cost-effective reliable method to depower rechargeable electric batteriesGM GLOBAL TECH OPERATIONS INC·Filed 2012·Granted Mar 8, 2016·2 cites·15 claims
- 3480US9136545B2Low cost fuel cell bipolar plate and process of making the sameDADHEECH GAYATRI VYAS·Filed 2008·Granted Sep 15, 2015·4 cites·23 claims
- 3580US7803476B2Electrical contact element for a fuel cell having a conductive monoatomic layer coatingGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Sep 28, 2010·4 cites·46 claims
- 3679US8455155B2Inexpensive approach for coating bipolar plates for PEM fuel cellsABD ELHAMID MAHMOUD H·Filed 2006·Granted Jun 4, 2013·3 cites·19 claims
- 3779US8148035B2Bipolar plate coating architecture for fuel cells and methods of making and using the sameDADHEECH GAYATRI VYAS·Filed 2008·Granted Apr 3, 2012·4 cites·25 claims
- 3878US10947905B1System and process for pump assist to maximize fuel consumption in a natural gas powertrainGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Mar 16, 2021·1 cites·20 claims
- 3978US9987705B2Resistance spot welding of steel to pre-coated aluminumGM GLOBAL TECH OPERATIONS LLC·Filed 2014·Granted Jun 5, 2018·3 cites·17 claims
- 4078US7687175B2Hybrid bipolar plate assembly and devices incorporating sameGM GLOBAL TECH OPERATIONS INC·Filed 2004·Granted Mar 30, 2010·16 cites·22 claims
- 4176US10018307B2Thermal management system for a natural gas tankGM GLOBAL TECH OPERATIONS LLC·Filed 2014·Granted Jul 10, 2018·3 cites·15 claims
- 4275US8785080B2Passivated metallic bipolar plates and a method for producing the sameABD ELHAMID MAHMOUD H·Filed 2008·Granted Jul 22, 2014·2 cites·34 claims
- 4375US8470488B2Metallic bipolar plates with high electrochemical stability and improved water managementABD ELHAMID MAHMOUD H·Filed 2005·Granted Jun 25, 2013·2 cites·14 claims
- 4474US10337671B2Innovative thermal management approaches of conformable tanksGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Jul 2, 2019·1 cites·4 claims
- 4573US9624851B2Method of operating a vehicle powertrain having a gas phase fuelable engineGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted Apr 18, 2017·3 cites·14 claims
- 4673US8323851B2Non-permeable low contact resistance shim for composite fuel cell stacksANDREAS-SCHOTT BENNO·Filed 2006·Granted Dec 4, 2012·2 cites·25 claims
- 4773US7641998B2Conductive mono atomic layer coatings for fuel cell bipolar platesGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Jan 5, 2010·1 cites·20 claims
- 4873US7195836B2Polymeric separator platesGEN MOTORS CORP·Filed 2003·Granted Mar 27, 2007·13 cites·20 claims
- 4972US8623573B2Porous, electrically conductive fluid distribution plate for fuel cellsABD ELHAMID MAHMOUD H·Filed 2005·Granted Jan 7, 2014·2 cites·14 claims
- 5071US9995260B2Bi-fuel vehicleGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted Jun 12, 2018·1 cites·17 claims
Showing the top 50 of 130 patent records by PatentIndex Score.
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