Patents by Inventor Robert M. Gemmill

Robert M. Gemmill 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).

  • Phosphorus-containing compounds and lubricants containing same
    Patent number: 4253978
    Abstract: Metal salts of hydrocarbyl oxazoline phosphorodithioic acids are novel compounds effective for reducing friction and wear when added to a lubricant.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: March 3, 1981
    Assignee: Mobil Oil Corporation
    Inventors: Robert M. Gemmill, Jr., Andrew G. Horodysky
  • Phosphorus-containing compounds and lubricants containing same
    Patent number: 4253973
    Abstract: Metal salts of phosphosulfurized hydrocarbyl oxazoline phosphorodithioic acids are novel compounds effective for reducing friction and wear when added to a lubricant.
    Type: Grant
    Filed: November 20, 1979
    Date of Patent: March 3, 1981
    Assignee: Mobil Oil Corporation
    Inventors: Andrew G. Horodysky, Robert M. Gemmill, Jr.
  • Process for improving olefin polymer oil properties
    Patent number: 4225739
    Abstract: Polymer oils having reduced viscosity and increased viscosity index are produced by oligomerizing a mixture of short chain 1-olefins and long chain 1-olefins in the presence of water or alcohol promoted boron trifluoride catalyst and low-boiling recycle from a previous oligomerization run.
    Type: Grant
    Filed: March 19, 1979
    Date of Patent: September 30, 1980
    Assignee: Mobil Oil Corporation
    Inventors: Richard N. Nipe, John W. Schick, Robert M. Gemmill, Jr.
  • Corrosion inhibited lubricant composition
    Patent number: 4193882
    Abstract: Lubricant compositions containing, in an amount sufficient to inhibit metal corrosion, the reaction product of oleic acid and 2,5-dimercapto-1,3,4-thiadiazole.
    Type: Grant
    Filed: October 19, 1978
    Date of Patent: March 18, 1980
    Assignee: Mobil Oil Corporation
    Inventor: Robert M. Gemmill, Jr.
  • Synthetic hydrocarbon lubricating oil
    Patent number: 4182922
    Abstract: Synthetic hydrocarbon oils having excellent viscosity index and pour point combinations. They are made by a process involving the copolymerization of propylene or propylene plus higher 1-olefins with small amounts of ethylene.
    Type: Grant
    Filed: December 19, 1977
    Date of Patent: January 8, 1980
    Assignee: Mobil Oil Corporation
    Inventors: John W. Schick, Robert M. Gemmill, Jr.
  • Lubricant compositions comprising substituted indans
    Patent number: 3931334
    Abstract: Lubricant compositions are provided comprising a substituted indan having the structure: ##SPC1##In which R is at least one member of the group consisting of hydrogen, alkyl, phenyl, carboxy alkyl, carboxy phenyl, phenoxy and their thiosubstituted derivatives. The method for the preparation of these substituted indans is also provided.
    Type: Grant
    Filed: July 5, 1973
    Date of Patent: January 6, 1976
    Assignee: Mobil Oil Corporation
    Inventors: Robert M. Gemmill, Jr., John W. Schick