P

Inventor

FRANK DAVID

FR67 patents
⚠️ This page may combine multiple inventors who share the name “FRANK DAVID”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HYDROGENICS CORP

19 patents
US6878477B2Apr 12, 2005

Fuel cell flow field plate

HYDROGENICS CORP21 citations92
US6833207B2Dec 21, 2004

Unitized regenerative fuel cell with bifunctional fuel cell humidifier and water electrolyzer

HYDROGENICS CORP65 citations92
US6727012B2Apr 27, 2004

Method and apparatus for generating hydrogen inside of a fuel cell

HYDROGENICS CORP45 citations92
US6602625B1Aug 5, 2003

Fuel cell with dual end plate humidifiers

HYDROGENICS CORP23 citations92
US6541141B1Apr 1, 2003

Water recovery in the anode side of a proton exchange membrane fuel cell

HYDROGENICS CORP45 citations92
US6436563B1Aug 20, 2002

Water recovery, primarily in the cathode side, of a proton exchange membrane fuel cell

HYDROGENICS CORP22 citations92
US6737184B2May 18, 2004

Chemical hydride hydrogen generation system and an energy system incorporating the same

HYDROGENICS CORP39 citations89
US7432008B2Oct 7, 2008

Gas diffusion layer for an electrochemical cell

HYDROGENICS CORP12 citations84
US6746789B1Jun 8, 2004

Catalytic humidifier and heater for the fuel stream of a fuel cell

HYDROGENICS CORP13 citations83
US7045230B2May 16, 2006

Chemical hydride hydrogen generation system and fuel cell stack incorporating a common heat transfer circuit

HYDROGENICS CORP17 citations81
US6946104B2Sep 20, 2005

Chemical hydride hydrogen generation system and an energy system incorporating the same

HYDROGENICS CORP15 citations79
US6706429B1Mar 16, 2004

Catalytic humidifier and heater, primarily for humidification of the oxidant stream for a fuel cell

HYDROGENICS CORP9 citations72
US12100869B2Sep 24, 2024

Fuel cell sub-assembly and method of making it

HYDROGENICS CORP0 citations63
US10923739B2Feb 16, 2021

Fuel cell sub-assembly and method of making it

HYDROGENICS CORP0 citations63
US6916567B2Jul 12, 2005

Regenerative dryer device and method for water recovery, primarily in the cathode side, of a proton exchange membrane fuel cell

HYDROGENICS CORP3 citations62
US7338727B2Mar 4, 2008

Method of operating a fuel cell to provide a heated and humidified oxidant

HYDROGENICS CORP2 citations61
US7569303B2Aug 4, 2009

Membrane electrode assembly with modified catalyst layout

HYDROGENICS CORP3 citations56
US10164285B2Dec 25, 2018

Fuel cell sub-assembly and method of making it

HYDROGENICS CORP0 citations52
US9929413B2Mar 27, 2018

Fuel cell sub-assembly and method of making it

HYDROGENICS CORP0 citations52

STATE FARM MUTUAL AUTOMOBILE INSURANCE CO

7 patents

MESSIER BUGATTI DOWTY

6 patents

SAFRAN LANDING SYSTEMS

6 patents

FRANK DAVID

5 patents

FUZION TECHNOLOGIES INC

1 patent

MESSIER BUGATTI

1 patent

LEMAY DAVID

1 patent

aquila biolabs GmbH

1 patent

ANALOG DEVICES INC

1 patent

GARCIA JEAN-PIERRE

1 patent

DANA FARBER CANCER INST INC

1 patent

Showing the top 50 of 67 patents by PatentIndex Score.