Patents by Inventor S. Blake Pruett

S. Blake Pruett 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).

  • Lubricity additives for low sulfur hydrocarbon fuels
    Patent number: 6872230
    Abstract: The present invention relates to additives for enhancing the lubricity of hydrocarbon fuel oils, the inventive additive composition including one or more of the reaction products of (i) an alkylated polyamine and (ii) urea or isocyanate, or the salt adducts of these reaction products. More particularly, the present invention provides for a process for improving the lubricity of hydrocarbon fuel oils, which are low in inherent lubricity due to treatment to reduce sulfur and aromatic components for improved emissions.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: March 29, 2005
    Assignee: Betzdearborn, Inc.
    Inventors: Collin W. Cross, Zen-Yu Chang, S. Blake Pruett, Alan E. Goliaszewski
  • Lubricity additives for low sulfur hydrocarbon fuels
    Publication number: 20040010963
    Abstract: The present invention relates to additives for enhancing the lubricity of hydrocarbon fuel oils, the inventive additive composition including one or more of the reaction products of (i) an alkylated polyamine and (ii) urea or isocyanate, or the salt adducts of these reaction products. More particularly, the present invention provides for a process for improving the lubricity of hydrocarbon fuel oils, which are low in inherent lubricity due to treatment to reduce sulfur and aromatic components for improved emissions.
    Type: Application
    Filed: July 16, 2002
    Publication date: January 22, 2004
    Applicant: BetzDearborn, Inc.
    Inventors: Collin W. Cross, Zen-Yu Chang, S. Blake Pruett, Alan E. Goliaszewski
  • High temperature corrosion inhibitor
    Patent number: 5314643
    Abstract: A process for the inhibition of corrosion caused by naphthenic acid and sulfur compounds during the elevated temperature processing of crude oil by use of a corrosion inhibitor consisting of trialkylphosphate and an alkaline earth metal phosphonate-phenate sulfide.
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: May 24, 1994
    Assignee: Betz Laboratories, Inc.
    Inventors: James G. Edmondson, S. Blake Pruett