Inventor
ABD ELHAMID MAHMOUD H
US88 patents
⚠️ This page may combine multiple inventors who share the name “ABD ELHAMID MAHMOUD H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GM GLOBAL TECH OPERATIONS INC
17 patentsUS9252411B2Feb 2, 2016
Multifunction battery separator
GM GLOBAL TECH OPERATIONS INC50 citations94
US8956785B2Feb 17, 2015
Amorphous carbon coatings for fuel cell bipolar plates
GM GLOBAL TECH OPERATIONS INC17 citations92
US7625654B2Dec 1, 2009
Ultra-low loadings of Au for stainless steel bipolar plates
GM GLOBAL TECH OPERATIONS INC40 citations92
US9249931B2Feb 2, 2016
Fluid storage tank
GM GLOBAL TECH OPERATIONS INC16 citations84
US9249933B2Feb 2, 2016
Fluid storage tank
GM GLOBAL TECH OPERATIONS INC9 citations84
US7687175B2Mar 30, 2010
Hybrid bipolar plate assembly and devices incorporating same
GM GLOBAL TECH OPERATIONS INC16 citations84
US7709145B2May 4, 2010
Hydrophilic surface modification of bipolar plate
GM GLOBAL TECH OPERATIONS INC6 citations74
US9328868B2May 3, 2016
Method of increasing storage capacity of natural gas tank
GM GLOBAL TECH OPERATIONS INC5 citations73
US7955754B2Jun 7, 2011
Enhanced stability bipolar plate
GM GLOBAL TECH OPERATIONS INC2 citations63
US7803476B2Sep 28, 2010
Electrical contact element for a fuel cell having a conductive monoatomic layer coating
GM GLOBAL TECH OPERATIONS INC4 citations63
US7749631B2Jul 6, 2010
Fuel cell separator plate coating
GM GLOBAL TECH OPERATIONS INC4 citations63
US7700212B2Apr 20, 2010
Bipolar plate with enhanced stability
GM GLOBAL TECH OPERATIONS INC3 citations63
US7641998B2Jan 5, 2010
Conductive mono atomic layer coatings for fuel cell bipolar plates
GM GLOBAL TECH OPERATIONS INC1 citations63
US7632592B2Dec 15, 2009
Method of fabricating corrosion-resistant bipolar plate
GM GLOBAL TECH OPERATIONS INC6 citations63
US9281703B2Mar 8, 2016
Cost-effective reliable method to depower rechargeable electric batteries
GM GLOBAL TECH OPERATIONS INC2 citations62
US7550222B2Jun 23, 2009
Fuel cell component having a durable conductive and hydrophilic coating
GM GLOBAL TECH OPERATIONS INC6 citations60
US9385379B2Jul 5, 2016
Removal of non-conductive hydrophilic coatings from lands of fuel cell bipolar plates
GM GLOBAL TECH OPERATIONS INC0 citations52
GM GLOBAL TECH OPERATIONS LLC
12 patentsUS10714756B2Jul 14, 2020
Metal deposition methods for forming bimetallic structures, batteries incorporating bipolar current collectors made therefrom, and applications thereof
GM GLOBAL TECH OPERATIONS LLC15 citations86
US9878611B1Jan 30, 2018
Vehicle with natural gas storage array
GM GLOBAL TECH OPERATIONS LLC14 citations84
US9869281B2Jan 16, 2018
Bi-fuel vehicle
GM GLOBAL TECH OPERATIONS LLC16 citations84
US10665913B2May 26, 2020
Thermal propagation mitigation for HV battery modules
GM GLOBAL TECH OPERATIONS LLC7 citations82
US9987705B2Jun 5, 2018
Resistance spot welding of steel to pre-coated aluminum
GM GLOBAL TECH OPERATIONS LLC3 citations73
US9874311B2Jan 23, 2018
Composite pressure vessel having a third generation advanced high strength steel (AHSS) filament reinforcement
GM GLOBAL TECH OPERATIONS LLC5 citations73
US9746134B2Aug 29, 2017
Method of storing and using natural gas in a vehicle
GM GLOBAL TECH OPERATIONS LLC2 citations73
US10018307B2Jul 10, 2018
Thermal management system for a natural gas tank
GM GLOBAL TECH OPERATIONS LLC3 citations71
US10054267B2Aug 21, 2018
Pressure vessel array
GM GLOBAL TECH OPERATIONS LLC4 citations70
US9624851B2Apr 18, 2017
Method of operating a vehicle powertrain having a gas phase fuelable engine
GM GLOBAL TECH OPERATIONS LLC3 citations67
US10337671B2Jul 2, 2019
Innovative thermal management approaches of conformable tanks
GM GLOBAL TECH OPERATIONS LLC1 citations62
US9431665B2Aug 30, 2016
Selectively coated bipolar plates for water management and freeze start in PEM fuel cells
GM GLOBAL TECH OPERATIONS LLC0 citations52
GEN MOTORS CORP
6 patentsUS6942941B2Sep 13, 2005
Adhesive bonds for metalic bipolar plates
GEN MOTORS CORP70 citations98
US6811918B2Nov 2, 2004
Low contact resistance PEM fuel cell
GEN MOTORS CORP63 citations94
US6866958B2Mar 15, 2005
Ultra-low loadings of Au for stainless steel bipolar plates
GEN MOTORS CORP39 citations92
US6827747B2Dec 7, 2004
PEM fuel cell separator plate
GEN MOTORS CORP37 citations92
US7195836B2Mar 27, 2007
Polymeric separator plates
GEN MOTORS CORP13 citations84
US7300719B2Nov 27, 2007
Porous diffusion media and bipolar plate assembly with anion exchange resin and devices incorporating same
GEN MOTORS CORP3 citations63
ABD ELHAMID MAHMOUD H
6 patentsUS9011667B2Apr 21, 2015
Nanotube assembly, bipolar plate and process of making the same
ABD ELHAMID MAHMOUD H7 citations83
US8785080B2Jul 22, 2014
Passivated metallic bipolar plates and a method for producing the same
ABD ELHAMID MAHMOUD H2 citations63
US8470488B2Jun 25, 2013
Metallic bipolar plates with high electrochemical stability and improved water management
ABD ELHAMID MAHMOUD H2 citations63
US8455155B2Jun 4, 2013
Inexpensive approach for coating bipolar plates for PEM fuel cells
ABD ELHAMID MAHMOUD H3 citations63
US8623573B2Jan 7, 2014
Porous, electrically conductive fluid distribution plate for fuel cells
ABD ELHAMID MAHMOUD H2 citations62
US8182963B2May 22, 2012
Low-cost manganese-stabilized austenitic stainless steel alloys, bipolar plates comprising the alloys, and fuel cell systems comprising the bipolar plates
ABD ELHAMID MAHMOUD H4 citations62
DADHEECH GAYATRI VYAS
4 patentsUS8758957B2Jun 24, 2014
Graphene coated SS bipolar plates
DADHEECH GAYATRI VYAS17 citations84
US9136545B2Sep 15, 2015
Low cost fuel cell bipolar plate and process of making the same
DADHEECH GAYATRI VYAS4 citations73
US8148035B2Apr 3, 2012
Bipolar plate coating architecture for fuel cells and methods of making and using the same
DADHEECH GAYATRI VYAS4 citations62
US9382620B2Jul 5, 2016
Electrical contact element for a fuel cell having an ultra-thin conductive layer coating
DADHEECH GAYATRI VYAS0 citations52
MIKHAIL YOUSSEF M
1 patentPHLEGM HERMAN K
1 patentANDREAS-SCHOTT BENNO
1 patentBALOGH MICHAEL P
1 patentZHONG FENG
1 patentShowing the top 50 of 88 patents by PatentIndex Score.