Patents by Inventor Joseph Timothy Mullhaupt

Joseph Timothy Mullhaupt 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).

  • Process for making microporous membranes having selected gas-selective sites and the membranes so made
    Patent number: 6547859
    Abstract: A process for making microporous membranes that incorporate selected gas selective species as surface sites in a controlled spacing and orientation manner and such membranes so formed being suitable for separating and purifying the selected gas from selected gas containing gas mixtures. An example is the use of oxygen selective transition element complexes (TECs) as surface sites for separating and purifying oxygen from oxygen-containing gas mixtures.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: April 15, 2003
    Assignee: Praxair Technology, Inc.
    Inventors: Joseph Timothy Mullhaupt, Neil Andrew Stephenson, Frank Notaro, Ravi Prasad
  • VPSA process using adsorbent materials
    Patent number: 6444014
    Abstract: The invention relates to the use of adsorbent materials that have been selected on the basis of their relationship between that material's intrinsic rate and equilibrium properties.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: September 3, 2002
    Assignee: Praxair Technology, Inc.
    Inventors: Joseph Timothy Mullhaupt, Frank Notaro
  • Oxygen-selective sorbents
    Patent number: 5945079
    Abstract: The invention comprises a process for air separation using oxygen-selective sorbents with enhanced selectivity, loading capacities and oxygen uptake rates have a transition element complex in solid form supported on a high surface substrate. The transition element complex is substantially uniformly spaced, and includes a transition element ion accessible to an oxygen-containing gas stream during use in the separation of oxygen from an oxygen-containing gas mixture such as air.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: August 31, 1999
    Assignee: Praxair Technology, Inc.
    Inventors: Joseph Timothy Mullhaupt, Neil Andrew Stephenson, Paula Chinn Stephenson
  • Adsorption process and system using multilayer adsorbent beds
    Patent number: 5810909
    Abstract: An adsorption process and system for the selective adsorption of a more readily adsorbable component, such as nitrogen, as from air or other feed gas mixture is carried out using a composite adsorbent bed containing different adsorbent materials positioned in separate zones in which the temperature conditions favor adsorption performance of the particular adsorbent material under applicable processing conditions in each zone. A method for the selection of the adsorbent materials is based on Adsorption Figure of Merit values.
    Type: Grant
    Filed: April 3, 1997
    Date of Patent: September 22, 1998
    Assignee: Praxair Technology, Inc.
    Inventors: Frank Notaro, Joseph Timothy Mullhaupt, Frederick Wells Leavitt, Mark William Ackley
  • Adsorption process and system using multilayer adsorbent beds
    Patent number: 5674311
    Abstract: An adsorption process and system for the selective adsorption of a more readily adsorbable component, such as nitrogen, as from air or other feed gas mixture is carried out using a composite adsorbent bed containing different adsorbent materials positioned in separate zones in which the temperature conditions favor adsorption performance of the particular adsorbent material under applicable processing conditions in each zone. A method for the selection of the adsorbent materials is based on Adsorption Figure of Merit values.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: October 7, 1997
    Assignee: Praxair Technology, Inc.
    Inventors: Frank Notaro, Joseph Timothy Mullhaupt, Frederick Wells Leavitt, Mark William Ackley
  • Process and composition for separation of oxygen from air using Pr-Ce as the carrier
    Patent number: 3980763
    Abstract: Oxide solid solutions of praseodymium and cerium are useful as the oxygen carrier in a reversible cyclic oxidation-reduction process for separating oxygen from air. The adverse affects on redox rates of contaminants in the air, such as CO.sub.2 and/or H.sub.2 O are substantially eliminated by incorporating a surface dopant such as silver into the praseodymium-cerium oxide.
    Type: Grant
    Filed: October 25, 1973
    Date of Patent: September 14, 1976
    Assignee: Union Carbide Corporation
    Inventor: Joseph Timothy Mullhaupt