Patents by Inventor Stephen F. Paul

Stephen F. Paul 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).

  • Correlated-intensity velocimeter for arbitrary reflector
    Patent number: 7450222
    Abstract: A velocimetry apparatus and method comprising splitting incoming reflected laser light and directing the laser light into first and second arms, filtering the laser light with passband filters in the first and second arms, one having a positive passband slope and the other having a negative passband slope, and detecting the filtered laser light via light intensity detectors following the passband filters in the first and second arms.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: November 11, 2008
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Zhehui Wang, Shengnian Luo, Cris W. Barnes, Stephen F. Paul
  • Alternative fuel
    Patent number: 6712866
    Abstract: A spark ignition motor fuel composition consisting essentially of: a hydrocarbon component containing one or more hydrocarbons selected from five to eight carbon atoms straight-chained or branched alkanes, wherein the hydrocarbon component has a minimum anti-knock index of 65 as measured by ASTM D-2699 and D-2700 and a maximum dry vapor pressure equivalent (DVPE) of 15 psi (one atmosphere (atm.)) as measured by ASTM D-5191; a fuel grade alcohol; and a co-solvent for the hydrocarbon component and the fuel grade alcohol; wherein the hydrocarbon component, the fuel grade alcohol and the co-solvent are present in amounts selected to provide a motor fuel with a minimum anti-knock index of 87 as measured by ASTM D-2699 and D-2700, and a maximum DVPE of 15 psi (1 atm.) as measured by ASTM D-5191, and wherein the fuel composition is essentially free of olefins, aromatics, and sulfur.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: March 30, 2004
    Inventor: Stephen F. Paul
  • Alternative fuel
    Publication number: 20020035802
    Abstract: A spark ignition motor fuel composition consisting essentially of: a hydrocarbon component containing one or more hydrocarbons selected from five to eight carbon atoms straight-chained or branched alkanes, wherein the hydrocarbon component has a minimum anti-knock index of 65 as measured by ASTM D-2699 and D-2700 and a maximum dry vapor pressure equivalent (DVPE) of 15 psi (one atmosphere (atm.)) as measured by ASTM D-5191; a fuel grade alcohol; and a co-solvent for the hydrocarbon component and the fuel grade alcohol; wherein the hydrocarbon component, the fuel grade alcohol and the co-solvent are present in amounts selected to provide a motor fuel with a minimum anti-knock index of 87 as measured by ASTM D-2699 and D-2700, and a maximum DVPE of 15 psi (1 atm.) as measured by ASTM D-5191, and wherein the fuel composition is essentially free of olefins, aromatics, and sulfur.
    Type: Application
    Filed: September 24, 2001
    Publication date: March 28, 2002
    Applicant: The Trustees of Princeton University
    Inventor: Stephen F. Paul
  • Alternative fuel
    Patent number: 6309430
    Abstract: A spark ignition motor fuel composition consisting essentially of: a hydrocarbon component containing one or more hydrocarbons selected from five to eight carbon atoms straight-chained or branched alkanes, wherein the hydrocarbon component has a minimum anti-knock index of 65 as measured by ASTM D-2699 and D-2700 and a maximum dry vapor pressure equivalent (DVPE) of 15 psi (one atmosphere (atm.)) as measured by ASTM D-5191; a fuel grade alcohol; and a co-solvent for the hydrocarbon component and the fuel grade alcohol; wherein the hydrocarbon component, the fuel grade alcohol and the co-solvent are present in amounts selected to provide a motor fuel with a minimum anti-knock index of 87 as measured by ASTM D-2699 and D-2700, and a maximum DVPE of 15 psi (1 atm.) as measured by ASTM D-5191, and wherein the fuel composition is essentially free of olefins, aromatics, and sulfur.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: October 30, 2001
    Assignee: The Trustees of Princeton University
    Inventor: Stephen F. Paul
  • Alternative fuel
    Patent number: 5697987
    Abstract: A spark ignition motor fuel composition consisting essentially of: a hydrocarbon component containing one or more hydrocarbons selected from five to eight carbon atoms straight-chained or branched alkanes essentially free of olefins, aromatics, benzene and sulfur, wherein the hydrocarbon component has a minimum anti-knock index of 65 as measured by ASTM D-2699 and D-2700 and a maximum DVPE of 15 psi as measured by ASTM D-5191; a fuel grade alcohol; and a co-solvent for the hydrocarbon component and the fuel grade alcohol; wherein the hydrocarbon component, the fuel grade alcohol and the co-solvent are present in amounts selected to provide a motor fuel with a minimum anti-knock index of 87 as measured by ASTM D-2699 and D-2700, and a maximum DVPE of 15 psi as measured by ASTM D-5191. A method for lowering the vapor pressure of a hydrocarbon-alcohol blend by adding a co-solvent for the hydrocarbon and the alcohol to the blend is also disclosed.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: December 16, 1997
    Assignee: The Trustees of Princeton University
    Inventor: Stephen F. Paul