Patents by Inventor Alfred B. Piotrowski

Alfred B. Piotrowski 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).

  • Lubricant additives derived from aminomercaptothiadiazole and lubricant compositions containing same
    Patent number: 4846984
    Abstract: Disclosed herein is the reaction product of 5-amino-2-mercapto-1,3,4-thiadiazole with hydrocarbyl epoxides. The resulting reaction product finds use as an additive in lubricating oil compositions.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: July 11, 1989
    Assignee: Mobil Oil Corporation
    Inventors: Angeline B. Cardis, Robert H. Davis, Alfred B. Piotrowski
  • Anti-rust compositions
    Patent number: 4661277
    Abstract: Certain partial esters of phthalic acid provide effective rust inhibition for greases and other solid lubricants.
    Type: Grant
    Filed: January 17, 1986
    Date of Patent: April 28, 1987
    Assignee: Mobil Oil Corporation
    Inventors: Alfred B. Piotrowski, Richard S. Herd
  • Anti-rust compositions
    Patent number: 4579673
    Abstract: Certain partial esters and amides provide effective rust inhibition for greases and other solid lubricants.
    Type: Grant
    Filed: October 25, 1983
    Date of Patent: April 1, 1986
    Assignee: Mobil Oil Corporation
    Inventors: Alfred B. Piotrowski, Richard S. Herd
  • Anti-rust compositions
    Patent number: 4440658
    Abstract: Certain partial esters of phthalic acid provide effective rust inhibition for greases and other solid lubricants.
    Type: Grant
    Filed: January 16, 1981
    Date of Patent: April 3, 1984
    Assignee: Mobil Oil Corporation
    Inventors: Alfred B. Piotrowski, Richard S. Herd
  • Water soluble lubricant compositions
    Patent number: 4425248
    Abstract: Water soluble lubricant compositions comprising alkanolamine and organic acid are improved by employing as the organic acid a partial acid amide of a dicarboxylic acid, such as mono-PRIMENE 81 R amide of succinic acid, mono-di-2-ethylhexylamide of maleic acid, mono-di-2-ethylhexylamide of methyltetrahydrophthalic acid and mono-di-2-ethylhexylamide of methylhexahydrophthalic acid as the organic acid.
    Type: Grant
    Filed: December 18, 1981
    Date of Patent: January 10, 1984
    Assignee: Mobil Oil Corporation
    Inventors: Alfred B. Piotrowski, Robert H. Davis
  • Metal working lubricant containing an alkanolamine and a cycloaliphatic acid
    Patent number: 4402839
    Abstract: Water soluble lubricant compositions comprising alkanolamine and organic acid are improved by employing a monocycloalkyl-1,2,3,6-cis tetrahydrophthalate or hexahydrophthalate; or a monoaralkyl-1,2,3,6-cis tetrahydrophthalate or hexahydrophthalate as the organic acid.
    Type: Grant
    Filed: May 11, 1981
    Date of Patent: September 6, 1983
    Assignee: Mobil Oil Corporation
    Inventors: Robert H. Davis, Alfred B. Piotrowski
  • Detergent compositions
    Patent number: 4292046
    Abstract: 1-hydroxyethyl-1-alkyl-2-imidazolines, bis-imidazolines and their derivatives impart good detergent properties to liquid hydrocarbon fuels containing a minor effective amount thereof.
    Type: Grant
    Filed: August 10, 1979
    Date of Patent: September 29, 1981
    Assignee: Mobil Oil Corporation
    Inventor: Alfred B. Piotrowski
  • Aqueous lubricant compositions
    Patent number: 4289636
    Abstract: Improved water soluble lubricant compositions are provided by incorporating therein amides derived from alkylamines and succinic, tetrahydrophthalic or tetrahydrofuran tetracarboxylic acids.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: September 15, 1981
    Assignee: Mobil Oil Corporation
    Inventors: Robert H. Davis, Alfred B. Piotrowski
  • Metal working lubricant containing an alkanolamine and a cycloaliphatic acid
    Patent number: 4259206
    Abstract: Water soluble lubricant compositions comprising alkanolamine and organic acid are improved by employing a monocycloalkyl-1,2,3,6-cis tetrahydrophthalate or a monoaralkyl-1,2,3,6-cis tetrahydrophthalate as the organic acid.
    Type: Grant
    Filed: August 22, 1979
    Date of Patent: March 31, 1981
    Assignee: Mobil Oil Corporation
    Inventors: Alfred B. Piotrowski, Robert H. Davis
  • Novel microemulsions
    Patent number: 4046519
    Abstract: A motor fuel in the form of a microemulsion is provided comprising a mixture of gasoline, methanol and water and a surfactant blend having a hydrophile-lipophile balance value of from about 3 to about 4.5.
    Type: Grant
    Filed: October 31, 1975
    Date of Patent: September 6, 1977
    Assignee: Mobil Oil Corporation
    Inventor: Alfred B. Piotrowski