Patents by Inventor Prathap Haridoss

Prathap Haridoss has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of qualifying at least a portion of a fuel cell system and an apparatus employing same
    Publication number: 20040253488
    Abstract: 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.
    Type: Application
    Filed: June 29, 2004
    Publication date: December 16, 2004
    Applicant: Plug Power, Inc.
    Inventors: Ryan Hallum, Yaobang Wu, Chris Comi, Prathap Haridoss, Chockkalingam Karuppaiah
  • Hydrophilic anode gas diffusion layer
    Patent number: 6821661
    Abstract: 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 140° (e.g., in some cases less than 120° or less than 100°). 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 140°.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: November 23, 2004
    Assignee: Plug Power, Inc.
    Inventors: Prathap Haridoss, Chockkalingam Karuppaiah, James F. McElroy, Jeffrey R. Boyer, Eric G. Budesheim
  • Method of qualifying at least a portion of a fuel cell system and an apparatus employing same
    Patent number: 6774637
    Abstract: 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.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: August 10, 2004
    Assignee: Plug Power, Inc.
    Inventors: Ryan Hallum, Yaobang Wu, Chris Comi, Prathap Haridoss, Chockkalingam Karuppaiah
  • Fuel cell system and method
    Patent number: 6696190
    Abstract: Fuel cells, fuel cell systems and methods of operating same are disclosed.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: February 24, 2004
    Assignee: Plug Power Inc.
    Inventor: Prathap Haridoss
  • Hydrophilic anode gas diffusion layer
    Publication number: 20030104267
    Abstract: 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 140° (e.g., in some cases less than 120° or less than 100°). 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 140°.
    Type: Application
    Filed: August 30, 2002
    Publication date: June 5, 2003
    Applicant: Plug Power Inc.
    Inventors: Prathap Haridoss, Chockkalingam Karuppaiah, James F. McElroy, Jeffrey R. Boyer, Eric G. Budesheim
  • Fuel cell electrode
    Publication number: 20030031916
    Abstract: 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.
    Type: Application
    Filed: November 30, 2000
    Publication date: February 13, 2003
    Inventors: Prathap Haridoss, Chockkalingam Karuppaiah, James F. McElroy, Glenn Eisman
  • Fuel cell system and method
    Publication number: 20030003333
    Abstract: Fuel cells, fuel cell systems and methods of operating same are disclosed.
    Type: Application
    Filed: June 29, 2001
    Publication date: January 2, 2003
    Inventor: Prathap Haridoss
  • Method of qualifying at least a portion of a fuel cell system and an apparatus employing same
    Publication number: 20020064694
    Abstract: 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.
    Type: Application
    Filed: November 30, 2000
    Publication date: May 30, 2002
    Inventors: Ryan Hallum, Yaobang Wu, Chris Comi, Prathap Haridoss, Chockkalingam Karuppaiah