Patents by Inventor David G. Weetman

David G. Weetman 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).

  • Lubricating oil composition
    Patent number: 4089791
    Abstract: Lubricating oil composition comprising a major portion of a mineral lubricating oil and minor amounts of an overbased alkaline earth metal compound, of a trialkanolamine represented by the formula: ##STR1## in which R is a hydrocarbyl radical having from 1 to 24 carbon atoms, R', Y and Z represent hydrogen or a hydrocarbyl radical having from 1 to 10 carbon atoms, and x is 0 to 1, and of a zinc dihydrocarbyl dithiophosphate in which at least 50 percent of the hydrocarbyl radicals are alkaryl radicals.
    Type: Grant
    Filed: December 8, 1975
    Date of Patent: May 16, 1978
    Assignee: Texaco Inc.
    Inventors: Haakon Haugen, David G. Weetman
  • Rust inhibitors and lubricant compositions containing same
    Patent number: 3996144
    Abstract: Ashless rust-inhibited lubricating oil compositions comprising a major portion of a mineral lubricating oil, and a minor, rust inhibiting amount of a polyhydric ester represented by the formula: ##STR1## in which R and R' are hydrogen or hydrocarbyl radicals having from 1 to 24 carbon atoms, r, m and n are integers ranging from 0 to 10.
    Type: Grant
    Filed: October 23, 1975
    Date of Patent: December 7, 1976
    Assignee: Texaco Inc.
    Inventors: David G. Weetman, Jackson W. Wisner, Jr., David M. Stehouwer
  • Substituted aminoalkylpropanediol and motor fuel composition containing same
    Patent number: 3976441
    Abstract: Substituted aminoalkylpropanediol represented by the formula: ##EQU1## IN WHICH R is a hydrocarbon radical having from 1 to 24 carbon atoms, R', R" , R'" and R"" represent hydrogen or a hydrocarbon radical having from 1 to 10 carbon atoms, and x and y are integers from 1 to 10, and a motor fuel composition containing same.
    Type: Grant
    Filed: September 25, 1975
    Date of Patent: August 24, 1976
    Assignee: Texaco Inc.
    Inventors: Jerzy J. Bialy, David G. Weetman