Patents by Inventor Piotr Waszczuk

Piotr Waszczuk 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).

  • Publication number: 20110087317
    Abstract: A cardiac lead comprising a lead body extending from a proximal end portion to a distal end portion; a cardiac electrode disposed along the lead body; and a coating associated with at least a portion of the electrode, wherein the coating comprises a conductive polymer.
    Type: Application
    Filed: November 29, 2010
    Publication date: April 14, 2011
    Inventors: Harshad Borgaonkar, Piotr Waszczuk, Daniel J. Cooke, Xiangchun Jiang
  • Patent number: 7881808
    Abstract: A cardiac lead comprising a lead body extending from a proximal end portion to a distal end portion; a cardiac electrode disposed along the lead body; and a coating associated with at least a portion of the electrode, the coating comprises a conductive polymer.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: February 1, 2011
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Harshad Borgaonkar, Piotr Waszczuk, Daniel J. Cooke, Xiangchun Jiang
  • Patent number: 7569297
    Abstract: A membrane electrode assembly for use with a direct organic fuel cell containing a formic acid fuel includes a solid polymer electrolyte having first and second surfaces, an anode on the first surface and a cathode on the second surface and electrically linked to the anode. The solid polymer electrolyte has a thickness t: t ? n f ? D f ? C f ? K f ? j f c where Cf is the formic acid fuel concentration over the anode, Df is the effective diffusivity of the fuel in the solid polymer electrolyte, Kf is the equilibrium constant for partition coefficient for the fuel into the solid polymer electrolyte membrane, ? is Faraday's constant nf is the number of electrons released when 1 molecule of the fuel is oxidized, and jfc is an empirically determined crossover rate of fuel above which the fuel cell does not operate.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: August 4, 2009
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Richard I. Masel, Cynthia A. York, Piotr Waszczuk, Andrzej Wieckowski
  • Publication number: 20080090399
    Abstract: An electrode includes a titanium substrate with a surface including an implanted layer of titanium oxy-nitride compounds.
    Type: Application
    Filed: October 17, 2006
    Publication date: April 17, 2008
    Inventors: Shamim M. Malik, Piotr Waszczuk, Daniel J. Cooke
  • Publication number: 20070239245
    Abstract: A cardiac lead comprising a lead body extending from a proximal end portion to a distal end portion; a cardiac electrode disposed along the lead body; and a coating associated with at least a portion of the electrode, wherein the coating comprises a conductive polymer.
    Type: Application
    Filed: March 29, 2006
    Publication date: October 11, 2007
    Inventors: Harshad Borgaonkar, Piotr Waszczuk, Daniel Cooke, Xiangchun Jiang
  • Patent number: 7273541
    Abstract: A method of electrolytic synthesis comprises applying a potential between a first electrode and a second electrode. The first electrode is in contact with a first fluid stream in a channel, the second electrode is in contact with a second fluid stream in the channel, and the first steam and the second stream are in parallel laminar flow in the channel.
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: September 25, 2007
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Eric R. Choban, Piotr Waszczuk, Paul J. A. Kenis, Theodore Tzedakis, Seong Kee Yoon, Cheikhou Kane
  • Patent number: 7205064
    Abstract: A method for transporting a gas to an electrode in a fuel cell is provided, whereby the gas is dissolved in an emulsion comprising a fluorinated hydrocarbon, a surfactant and an aqueous electrolyte with a pH of at most 4 or at least 9, and the emulsion is contacted with the electrode.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: April 17, 2007
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Larry J. Markoski, Piotr Waszczuk, Paul J. A. Kenis, Eric R. Choban
  • Patent number: 7132188
    Abstract: A direct organic fuel cell includes a formic acid fuel solution having between about 10% and about 95% formic acid. The formic acid is oxidized at an anode. The anode may include a Pt/Pd catalyst that promotes the direct oxidation of the formic acid via a direct reaction path that does not include formation of a CO intermediate.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: November 7, 2006
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Richard I. Masel, Cynthia A. Rice, Piotr Waszczuk, Andrzej Wieckowski
  • Publication number: 20060188767
    Abstract: A direct organic fuel cell includes a formic acid fuel solution having between about 10% and about 95% formic acid. The formic acid is oxidized at an anode. The anode may include a Pt/Pd catalyst that promotes the direct oxidation of the formic acid via a direct reaction path that does not include formation of a CO intermediate.
    Type: Application
    Filed: December 16, 2005
    Publication date: August 24, 2006
    Inventors: Richard Masel, Cynthia Rice, Piotr Waszczuk, Andrzej Wieckwski
  • Publication number: 20050252784
    Abstract: A method of electrolytic synthesis comprises applying a potential between a first electrode and a second electrode. The first electrode is in contact with a first fluid stream in a channel, the second electrode is in contact with a second fluid stream in the channel, and the first steam and the second stream are in parallel laminar flow in the channel.
    Type: Application
    Filed: May 11, 2004
    Publication date: November 17, 2005
    Inventors: Eric Choban, Piotr Waszczuk, Paul Kenis, Theodore Tzedakis, Seong Yoon, Cheikhou Kane
  • Publication number: 20040265681
    Abstract: A method for transporting a gas to an electrode in a fuel cell is provided, whereby the gas is dissolved in an emulsion comprising a fluorinated hydrocarbon, a surfactant and an aqueous electrolyte with a pH of at most 4 or at least 9, and the emulsion is contacted with the electrode.
    Type: Application
    Filed: June 27, 2003
    Publication date: December 30, 2004
    Inventors: Larry J. Markoski, Piotr Waszczuk, Paul J.A. Kenis, Eric R. Choban
  • Publication number: 20030198852
    Abstract: A direct organic fuel cell includes a formic acid fuel solution having between about 10% and about 95% formic acid. The formic acid is oxidized at an anode. The anode may include a Pt/Pd catalyst that promotes the direct oxidation of the formic acid via a direct reaction path that does not include formation of a CO intermediate.
    Type: Application
    Filed: April 4, 2003
    Publication date: October 23, 2003
    Applicant: The Board of Trustees of the University of Illinoi
    Inventors: Richard I. Masel, Cynthia A. Rice, Piotr Waszczuk, Andrzej Wieckowski