Patents by Inventor John G. Schaffhausen

John G. Schaffhausen 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).

  • Preparation of 2-alkoxy-6-ethylnaphthalenes
    Patent number: 5235115
    Abstract: A method for the selective ethylation of 2-alkoxy-naphthalene compounds at the 6 position of the naphthalene nucleus is disclosed.
    Type: Grant
    Filed: August 15, 1991
    Date of Patent: August 10, 1993
    Assignee: Amoco Corporation
    Inventors: Gary P. Hagen, Wen-Dong Chang, Andreas B. Ernst, David A. Palmer, Daniel B. Pourreau, Patrick E. McMahon, John G. Schaffhausen
  • Supplemental rust inhibitors and rust inhibition in internal combustion engines
    Patent number: 5204012
    Abstract: An esterification product obtained by reacting ethylene oxide/propylene oxide block copolymer with a long-chain monocarboxylic acid, when employed as a supplemental rust inhibitor in lubricating oils for internal combustion engines, has been found to furnish excellent rust inhibition in the engines and to be compatible with other components in the lubricating oils.A lubricating oil composition containing such product may be used to inhibit rust formation in an internal combustion engine.
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: April 20, 1993
    Assignee: Ethyl Corporation
    Inventor: John G. Schaffhausen
  • Process for the production of aminoguanidine bicarbonate
    Patent number: 4906778
    Abstract: A process for the preparation of aminoguanidine bicarbonate includes reacting an acidic aqueous hydrazine hydrate solution with calcium cyanamide in an elevated temperature to produce an aminoguanidine solution, recovering the solution, and reacting therewith an alkali metal bicarbonate to produce relatively high purity aminoguanidine bicarbonate.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: March 6, 1990
    Assignee: Amoco Corporation
    Inventor: John G. Schaffhausen
  • Lubricating oil additive
    Patent number: 4844827
    Abstract: A highly dispersant lubricating oil additive having a relatively low nitrogen content is provided by reacting a solvent free bis(primary amine) composition with an aliphatic hydrocarbon-substituted succinimic anhydride or with an admixture of an aliphatic hydrocarbon-substituted phenol, formaldehyde, and a fatty acid.
    Type: Grant
    Filed: November 9, 1988
    Date of Patent: July 4, 1989
    Assignee: Amoco Corporation
    Inventor: John G. Schaffhausen
  • Lubricating oil containing Mannich condensation product of ethylene/propylene/carbonyl polymers
    Patent number: 4485023
    Abstract: A Mannich condensation product of an amorphous, oil soluble olefin/carbonyl polymer, amine and formaldehyde yielding reactant wherein the carbonyl groups are provided by at least one member selected from the group consisting of carbon monoxide and vinyl alkyl ketone and lube oil compositions comprising said polymers.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: November 27, 1984
    Assignee: Standard Oil Company (Indiana)
    Inventors: Carl Serres, John G. Schaffhausen
  • Ethylene/propylene/co polymers
    Patent number: 4473482
    Abstract: An amorphous, oil soluble ethylene/propylene/CO polymer having a mole ratio of ethylene to propylene from about 35:65 to 60:40 and lube oil compositions comprising said polymers.
    Type: Grant
    Filed: December 6, 1982
    Date of Patent: September 25, 1984
    Assignee: Standard Oil Company (Indiana)
    Inventors: Carl Serres, John G. Schaffhausen
  • Process for preparation of Mannich condensation product
    Patent number: 4444956
    Abstract: A process for the preparation of oil-soluble Mannich condensation products wherein an amine is prereacted with a sulfonic acid or ammonium sulfonate, and the prereaction product is reacted with an aldehyde and an oxidized olefin polymer.
    Type: Grant
    Filed: November 8, 1982
    Date of Patent: April 24, 1984
    Assignee: Standard Oil Company (Indiana)
    Inventors: John G. Schaffhausen, Adel B. Abdul-Malek
  • Ethylene/propylene/vinyl alkyl ketone polymers
    Patent number: 4434270
    Abstract: An amorphous, oil soluble ethylene/propylene/vinylalkyl ketone polymer having a mol ratio of ethylene to propylene from about 35:65 to 60:40 and lube oil compositions comprising said polymers.
    Type: Grant
    Filed: December 6, 1982
    Date of Patent: February 28, 1984
    Assignee: Standard Oil Company (Indiana)
    Inventors: Carl Serres, John G. Schaffhausen
  • Mannich condensation product of ethylene/propylene/carbonyl polymers
    Patent number: 4424317
    Abstract: A Mannich condensation product of an amorphous, oil soluble olefin/carbonyl polymer, amine and formaldehyde yielding reactant wherein the carbonyl groups are provided by at least one member selected from the group consisting of carbon monoxide and vinyl alkyl ketone and lube oil compositions comprising said polymers.
    Type: Grant
    Filed: December 6, 1982
    Date of Patent: January 3, 1984
    Assignee: Standard Oil Company (Indiana)
    Inventors: Carl Serres, John G. Schaffhausen
  • Use of a catalyst to inhibit formation of tar during the "ENE" reaction of an ethylenically unsaturated alpha, beta dicarboxylic acid compound and an ethylenically unsaturated hydrocarbon
    Patent number: 4396774
    Abstract: A process for the production of a substituted alpha, beta dicarboxylic acid compound substantially free of tar and other resinous reaction byproducts comprising the reaction of an ethylenically unsaturated long chain compound having at least 10 carbon atoms and an ethylenically unsaturated alpha, beta dicarboxylic acid compound at conditions favoring the ENE reaction in the presence of a catalytically effective amount of an alkyl aluminum halide.
    Type: Grant
    Filed: March 22, 1982
    Date of Patent: August 2, 1983
    Assignee: Standard Oil Company (Indiana)
    Inventor: John G. Schaffhausen