Patents by Inventor Viswanatha Sankaran

Viswanatha Sankaran 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: 5133902
    Abstract: A process for converting liquid triglycerides into solid triglycerides by means of random transesterifications achieved through the use of catalytically active combinations comprising the reaction product of mixtures of dihydric and trihydric alcohols with mixtures of alkali metal hydroxides, and with ketones. The catalytically active materials can be employed in directed transesterifications in which the transesterification reaction mixture is subjected to a series of heating and cooling cycles during which higher melting fats are formed and precipitated from solution, causing an equilibrium shift that results in the formation and precipitation of still additional higher melting fats. An especially desirable catalytically active combination comprises the reaction product of 1, 2 propanediol, 1, 3 propanediol and glycerol, with sodium hydroxide and potassium hydroxide, and in a preferred embodiment, the reaction product is combined with acetone to form the catalytically active combination.
    Type: Grant
    Filed: August 17, 1990
    Date of Patent: July 28, 1992
    Inventor: Viswanatha Sankaran
  • Patent number: 5104846
    Abstract: A catalyst for promoting the molecular restructuring of the components of hydrocarbons to form desired products. The catalyst comprises copper salts, copper acetate being particularly preferred, in combination with anhydrous aluminum chloride. The catalyst can be used with either gaseous hydrocarbon raw materials such as natural gas, refinery gas, biomass decomposition gases, and similar materials, or with solids, meltable solids, or liquid hydrocarbon-containing raw materials including tar sands, oil shale, waxes, asphaltic compositions and the like. In the case of gaseous raw materials, the gases are preferably brought into contact with the copper salt coated on a catalyst support such as refractory alumina, in the presence of anhydrous aluminum chloride, which can be in vaporous form, in a continuous process.
    Type: Grant
    Filed: October 10, 1990
    Date of Patent: April 14, 1992
    Inventor: Viswanatha Sankaran
  • Patent number: 5012025
    Abstract: A catalyst for promoting the molecular restructuring of the components of hydrocarbons to form desired products. The catalyst comprises copper salts, copper acetate being particularly preferred, in combination with anhydrous aluminum chloride. The catalyst can be used with either gaseous hydrocarbon raw materials such as natural gas, refinery gas, biomass decomposition gases, and similar materials, or with solids, meltable solids, or liquid hydrocarbon-containing raw materials including tar sands, oil shale, waxes, asphaltic compositions and the like. In the case of gaseous raw materials, the gases are preferably brought into contact with the copper salt coated on a catalyst support such as refractory alumina, in the presence of anhydrous aluminum chloride, which can be in vaporous form, in a continuous process.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: April 30, 1991
    Inventor: Viswanatha Sankaran
  • Patent number: 4966876
    Abstract: A process for converting liquid triglycerides into solid triglycerides by means of random transesterifications achieved through the use of catalytically active combinations comprising the reaction product of mixtures of dihydroxy and trihydroxy alcohols with mixtures of alkali metal hydroxides, and with ketones. The catalytically active materials can be employed in directed transesterifications in which the transesterification reaction mixture is subjected to a series of heating and cooling cycles during which higher melting fats are formed and precipitated from solution, causing an equilibrium shift that results in the formation and precipitation of still additional higher melting fats. An especially desirable catalytically active combination comprises the reaction product of 1, 2 propanediol, 1,3 propanediol and glycerol, with sodium hydroxide and potassium hydroxide, and in a preferred embodiment, the reaction product is combined with acetone to form the catalytically active combination.
    Type: Grant
    Filed: August 22, 1989
    Date of Patent: October 30, 1990
    Inventor: Viswanatha Sankaran