Chockkalingam M Karuppaiah

6774637, Aug 10, 2004

Nov 30, 2000

09/726839

Ryan Hallum - Latham NY
Yaobang Wu - Latham NY
Chris Comi - Scotia NY
Prathap Haridoss - Watervliet NY
Chockkalingam Karuppaiah - Troy NY

Plug Power, Inc. - Latham NY

G01N 27416

324433, 324434, 429 13, 429 22

The present invention provides a method for enabling qualification of at least a portion of a fuel cell system. The method includes electronically obtaining at least one result of a test of the at least a portion of a fuel cell system and electronically comparing the at least one result to at least one qualifying criteria.

6821661, Nov 23, 2004

Aug 30, 2002

10/232292

Prathap Haridoss - Chennai, IN
Chockkalingam Karuppaiah - Troy NY
James F. McElroy - Suffield CT
Jeffrey R. Boyer - Nishayuna NY
Eric G. Budesheim - Wynantskill NY

Plug Power, Inc. - Latham NY

H01M 800

429 13, 429 33, 429 34, 429 44

The invention provides an anode gas diffusion layer for a fuel cell and methods for preparation and use thereof. In particular, a hydrophilic anode gas diffusion layer promotes water transfer through the fuel cell. As an example, in one aspect, the invention provides a fuel cell system, including a fuel cell with an anode gas diffusion layer. The anode gas diffusion layer has a contact angle with water less than 140Â (e. g. , in some cases less than 120Â or less than 100Â). In another aspect, the invention provides a gas diffusion layer for a hydrogen electrode of a PEM fuel cell that includes a carbon fiber media having a water contact angle of less than 140Â.

7514166, Apr 7, 2009

Apr 1, 2005

11/095552

Darren Hickey - Palo Alto CA, US
Chockkalingam Karuppaiah - Cupertino CA, US
James McElroy - Suffield CT, US

Bloom Energy Corporation - Sunnyvale CA

H01M 8/10

429 13, 429 23, 429 30

One embodiment of the invention provides a method of operating a solid oxide fuel cell, including providing a solid oxide fuel cell comprising an anode electrode containing nickel, and electrochemically reducing an anode side of the fuel cell. Another embodiment of the invention provides a method of operating a solid oxide fuel cell, including providing a solid oxide fuel cell comprising an anode electrode containing nickel, periodically operating the fuel cell to generate electricity, and reducing an anode side of the fuel cell between electricity generation operation periods of the fuel cell.

8551299, Oct 8, 2013

May 28, 2010

12/790613

Majid Keshavarz - Pleasanton CA, US
Saroj Kumar Sahu - Mountain House CA, US
Chockkalingam Karuppaiah - Fremont CA, US
Ge Zu - San Jose CA, US
Suresh Kumar Surapalan Nair - Fremont CA, US
Vasanthan Mani - Fremont CA, US

Deeya Energy, Inc. - Fremont CA

C01B 7/01
H01M 6/50
H01M 6/04

20415748, 20415752, 429 49, 429200

A method of producing HCl from Hand Clis provided. In some embodiments, the method comprises at least one photochemical chamber placed in fluid communication with at least one source of Hand at least one source of Cl. In some embodiments, the photochemical chamber effects the formation of HCl through the use of at least one source of ultraviolet radiation contained therein. In some embodiments, the HCl product may be captured and used as a gas. In some embodiments, the HCl product may be absorbed into water to form an aqueous HCl solution.

20020071977, Jun 13, 2002

Dec 13, 2000

09/736470

Balasubramanian Lakshmanan - Columbia SC, US
Chockkalingam Karuppaiah - Troy NY, US

H01M008/06
H01M008/04
H01M008/18
H01M004/86
H01M008/10

429/021000, 429/019000, 429/030000, 429/033000, 429/044000, 429/023000, 429/017000

A fuel cell system includes a fuel cell having an electrode, and an electrochemical cell having a device. The electrochemical cell includes a cathode, an anode in fluid communication with the electrode of the fuel cell, and an electrolyte in electrical communication with the cathode and the anode. The device is in electrical communication with the anode of the electrochemical cell and adapted to vary the potential of the anode. The electrochemical cell and the device are capable of reducing an amount of carbon monoxide that enters the fuel cell system.

20030031916, Feb 13, 2003

Nov 30, 2000

09/727748

Prathap Haridoss - Watervliet NY, US
Chockkalingam Karuppaiah - Troy NY, US
James McElroy - Suffield CT, US
Glenn Eisman - Niskayuna NY, US

H01M004/86
H01M004/92

429/040000, 429/042000

A composition includes a catalyst, and a non-electrolytic material different than the catalyst, wherein the catalyst and the non-electrolytic material compose a fuel cell electrode.

20030190517, Oct 9, 2003

Oct 24, 2002

10/279632

John Elter - Glenville NY, US
Richard Gaylord - Saratoga Springs NY, US
Qunhui Guo - North Andover MA, US
Chockkalingam Karuppaiah - University Heights OH, US
Hao Tang - Montreal, CA
Yaobang Wu - Latham NY, US

H01M004/86
H01M004/92
H01M004/96
H01M004/94

429/042000, 429/044000

Cathodes that can be used, for example, in an electrode unit, a fuel cell, and/or a fuel cell stack are disclosed.

20040253488, Dec 16, 2004

Jun 29, 2004

10/879551

Ryan Hallum - Latham NY, US
Yaobang Wu - Latham NY, US
Chris Comi - Scotia NY, US
Prathap Haridoss - Watervliet NY, US
Chockkalingam Karuppaiah - Troy NY, US

Plug Power, Inc. - Latham NY

H01M008/00
H01M008/10

429/012000

The present invention provides a method for enabling qualification of at least a portion of a fuel cell system. The method includes electronically obtaining at least one result of a test of the at least a portion of a fuel cell system and electronically comparing the at least one result to at least one qualifying criteria.