Patents by Inventor Thomas Frier Steckel

Thomas Frier Steckel 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).

  • Patent number: 6090757
    Abstract: A process of preparing an overbased composition by the reaction of oil soluble organic acids with oxides or hydroxides of, e.g., zinc, copper, cadmium, transition metals, etc. to form a salt. Additional oxides or hydroxides are added along with boric acid and promoters. These overbased metal borates are useful in lubricating oils and fuels.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: July 18, 2000
    Assignee: The Lubrizol Corporation
    Inventor: Thomas Frier Steckel
  • Patent number: 4067698
    Abstract: Compositions made by reacting (I) a metal phenoxide salt of a bridged phenol of 2 to about 20 phenol groups and (II) a carboxylic acid reagent containing from one to three carboxyl-based groups and a halogen-substituted hydrocarbon-based aliphatic or alicyclic group containing a halogen atom are useful as additives for lubricants and normally liquid fuels. Analogous thiophenoxide-based compositions are similarly useful. These compositions can also be used as intermediates for the preparation of other useful additive compositions through their reaction with alcohols, amino compounds, reactive small ring heterocycles and basically reacting metal compounds.
    Type: Grant
    Filed: August 27, 1975
    Date of Patent: January 10, 1978
    Assignee: The Lubrizol Corporation
    Inventor: Thomas Frier Steckel
  • Patent number: 4061474
    Abstract: Compositions made by reacting (I) a metal phenoxide substituted with at least one hydrocarbon-based group of at least about 30 carbon atoms with (II) a carboxylic acid reagent containing from one to three carboxyl-based groups and a halogen-substituted hydrocarbon-based aliphatic or alicyclic group containing a halogen atom are useful as additives for lubricants and normally liquid fuels. Analogous thiophenoxide-based compositions are similarly useful. These compositions are also useful as intermediates for the preparation of other useful additive compositions through their reaction with alcohols, amino compounds, reactive small ring heterocycles and basically reacting metal compounds.
    Type: Grant
    Filed: August 27, 1975
    Date of Patent: December 6, 1977
    Assignee: The Lubrizol Corporation
    Inventor: Thomas Frier Steckel