Patents Represented by Attorney J. M. Whitney
  • Patent number: 4551226
    Abstract: Disclosed is a process for reducing the fouling in a heat exchanger in which a hydrocarbon stream is heated or cooled as it passes through the heat exchanger. From 1 to 500 parts per million of an organic hydroxylamine is added to the stream to reduce fouling.
    Type: Grant
    Filed: February 26, 1982
    Date of Patent: November 5, 1985
    Assignee: Chevron Research Company
    Inventor: Richard L. Ferm
  • Patent number: 4527996
    Abstract: Additives for the control of deposits in the intake systems of engines are provided. The additives comprise hydroxy polyether amines of the general formula: ##STR1## Also provided are a fuel composition containing from about 250 ppm to 5000 ppm of this additive and a concentrate containing this additive.
    Type: Grant
    Filed: December 28, 1984
    Date of Patent: July 9, 1985
    Assignee: Chevron Research Company
    Inventor: Curtis B. Campbell
  • Patent number: 4523957
    Abstract: An open-graded emulsified asphalt paving mix is provided comprising a major portion of open-graded aggregate and a minor portion of cationic or anionic bituminous emulsion, the mix containing a minor portion of a polyelectrolyte having the opposite electric charge from that of the asphalt emulsifier which imparts excellent water resistance properties to pavement prepared from the mix. A method for producing the polyelectrolyte in situ is also provided.
    Type: Grant
    Filed: September 1, 1983
    Date of Patent: June 18, 1985
    Assignee: Chevron Research Company
    Inventors: Peter E. Graf, Judson E. Goodrich
  • Patent number: 4521610
    Abstract: Deposit control additives to maintain cleanliness in internal combustion engines are provided. The additives are hydrocarbyl-terminated poly(oxyalkylene) aminohydrocarbyloxyhydrocarbyl carbamates, also referred to as polyether aminoether carbamates.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: June 4, 1985
    Assignee: Chevron Research Company
    Inventor: Frank Plavac
  • Patent number: 4521319
    Abstract: Dispersant lubricating oil additives are prepared by reacting oil-soluble dispersant compositions containing at least one primary or secondary amino group with SO.sub.2.
    Type: Grant
    Filed: August 2, 1983
    Date of Patent: June 4, 1985
    Assignee: Chevron Research Company
    Inventor: Timothy R. Erdman
  • Patent number: 4508568
    Abstract: The invention encompasses a petrolatum wax-biocidal composition and a method of preserving wood with the composition.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: April 2, 1985
    Assignee: Chevron Research Company
    Inventor: Richard C. Fox
  • Patent number: 4507517
    Abstract: Disclosed is a catalytic process for the production of higher molecular weight hydrocarbons from lower molecular weight hydrocarbons. More particularly, disclosed is a catalytic process for the conversion of methane to C.sub.2 + hydrocarbons, particularly hydrocarbons rich in ethylene or benzene, or both. The process utilizes a boron compound containing catalyst, high reaction temperature of greater than 1000.degree. C., and a high gas hourly space velocity of greater than 3200 hr.sup.-1.
    Type: Grant
    Filed: October 31, 1983
    Date of Patent: March 26, 1985
    Assignee: Chevron Research Company
    Inventors: Louis Devries, P. R. Ryason
  • Patent number: 4495088
    Abstract: Lubricating oils containing borated fatty acid esters of glycerol and a succinimide have been found to reduce fuel consumption in an internal combustion engine.
    Type: Grant
    Filed: February 24, 1983
    Date of Patent: January 22, 1985
    Assignee: Chevron Research Company
    Inventor: Thomas V. Liston
  • Patent number: 4495075
    Abstract: Precipitation of a zinc dialkyldithiophosphate prepared from a mixture of about 50 to 90 mole percent of a lower alcohol plus 50 to 10 mole percent of a higher alcohol may be prevented by the addition to the composition of from about 0.5 to 10.0 percent by weight of an alkyl or alkenyl mono- or bis-succinimide.
    Type: Grant
    Filed: May 15, 1984
    Date of Patent: January 22, 1985
    Assignee: Chevron Research Company
    Inventor: Thomas F. Buckley
  • Patent number: 4487704
    Abstract: The anti-wear properties of lubricating oil compositions containing overbased calcium sulfonate are improved when a complex of a zinc salt of a cyclic hydrocarbyl dithiophosphoric acid of 2,4-pentanediol and a succinimide is added to the oil. Oil compositions containing this combination are useful as crankcase lubricants.
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: December 11, 1984
    Assignee: Chevron Research Company
    Inventors: Elaine S. Yamaguchi, Thomas V. Liston
  • Patent number: 4477322
    Abstract: Disclosed is a gaseous diffusion anode and a process for the production of gaseous hydrogen chloride in an electrolytic cell.
    Type: Grant
    Filed: May 31, 1983
    Date of Patent: October 16, 1984
    Assignee: Chevron Research Company
    Inventor: Peter C. Foller
  • Patent number: 4459215
    Abstract: Disclosed is a lubricating composition comprising an oil of lubricating viscosity having dispersed therein a minor amount of an additive composition comprising a mixture of: (a) a hydrated alkali metal borate; (b) an oil-soluble sulfur-containing compound; and (c) a zirconium salt.
    Type: Grant
    Filed: April 29, 1983
    Date of Patent: July 10, 1984
    Assignee: Chevron Research Company
    Inventor: Christopher G. Salentine
  • Patent number: 4455243
    Abstract: Lubricating oils containing borated fatty acid esters of glycerol-succinimide complex have been found to reduce fuel consumption in an internal combustion engine.
    Type: Grant
    Filed: February 24, 1983
    Date of Patent: June 19, 1984
    Assignee: Chevron Research Company
    Inventor: Thomas V. Liston
  • Patent number: 4454269
    Abstract: A method for producing air-blown industrial asphalt using asphalt, ethylene/vinyl-acetate copolymer and an air-blowing catalyst is disclosed. The EVA copolymer is present in a weight percent of from 1 weight percent to 10 weight percent. Also disclosed is the asphalt composition resulting from the air-blowing method.
    Type: Grant
    Filed: December 30, 1982
    Date of Patent: June 12, 1984
    Assignee: Chevron Research Company
    Inventor: Judson E. Goodrich
  • Patent number: 4450281
    Abstract: Disclosed is a process for the preparation of substituted carboxylic acids and their derivatives in which the synthesis reaction is carried out at least partially thermally in the presence of a furan-type compound. The furan-type compound substantially increases yields and reduces the formation of undesirable resinous by-products.
    Type: Grant
    Filed: December 29, 1982
    Date of Patent: May 22, 1984
    Assignee: Chevron Research Company
    Inventor: Robert H. Wollenberg
  • Patent number: 4443360
    Abstract: Oil-insoluble zinc salts of cyclic dithiophosphates are rendered oil soluble when combined to form a complex with alkenyl or alkyl mono- or bis-succinimides. Oil compositions containing this combination are useful as crankcase lubricants.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: April 17, 1984
    Assignee: Chevron Research Company
    Inventors: Elaine S. Yamaguchi, Thomas V. Liston
  • Patent number: 4440579
    Abstract: A process for air blowing asphalt in the presence of organic sulfonic acids and an asphalt composition comprising a major amount of asphalt and a minor but effective amount of organic sulfonic acid.
    Type: Grant
    Filed: November 30, 1982
    Date of Patent: April 3, 1984
    Assignee: Chevron Research Company
    Inventor: Penny K. Eidem
  • Patent number: 4438022
    Abstract: Additives for lubricating oils for internal combustion engines which contribute dispersancy and detergency to the lubricating oils are disclosed. The additives are hydrocarbylpoly(oxyalkylene) polyamine ethanes comprising a hydrocarbyl-terminated poly(oxyalkylene) chain of 2-5 carbon oxyalkylene units bonded to an ethane or substituted ethane chain in turn bonded to a nitrogen atom of a polyamine having from 2 to 12 amine nitrogens and from 2 to 40 carbon atoms with a carbon:nitrogen ratio between 1:1 and 10:1.
    Type: Grant
    Filed: July 30, 1982
    Date of Patent: March 20, 1984
    Assignee: Chevron Research Company
    Inventor: Curtis B. Campbell
  • Patent number: 4436640
    Abstract: Novel glycolate diesters of dithiophosphoric acid and salts of such esters suitable as additives in oil compositions are disclosed. Oil compositions containing the salts of such esters show improved extreme pressure/anti-wear and antioxidant properties.
    Type: Grant
    Filed: May 27, 1982
    Date of Patent: March 13, 1984
    Assignee: Chevron Research Company
    Inventor: Elaine S. Yamaguchi
  • Patent number: 4436649
    Abstract: Disclosed is a polyurea-thickened grease containing a polyhydroxylated compound which improves the low shear stability of the grease.
    Type: Grant
    Filed: June 30, 1982
    Date of Patent: March 13, 1984
    Assignee: Chevron Research Company
    Inventor: Jeffrey E. Stemke