Patents Represented by Attorney D. A. Newell

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  • Hydrocarbon conversion with crystalline silicates
    Patent number: 4416766
    Abstract: A process for selectively converting adsorbable hydrocarbon feeds containing straight-chain and slightly branched-chain hydrocarbons to olefins by contacting the feeds with crystalline silicates.
    Type: Grant
    Filed: October 22, 1981
    Date of Patent: November 22, 1983
    Assignee: Chevron Research Company
    Inventor: Bernard F. Mulaskey
  • Oligomerization of liquid olefins
    Patent number: 4417088
    Abstract: A new process for oligomerizing liquid olefins using intermediate pore size molecular sieves is disclosed.
    Type: Grant
    Filed: September 25, 1981
    Date of Patent: November 22, 1983
    Assignee: Chevron Research Company
    Inventor: Stephen J. Miller
  • Efficient fluidized oligomerization
    Patent number: 4417086
    Abstract: A highly efficient oligomerization process using molecular sieves is disclosed.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: November 22, 1983
    Assignee: Chevron Research Company
    Inventor: Stephen J. Miller
  • Fungicidal, herbicidal and plant growth-regulating pyrimidyl-containing ethers
    Patent number: 4417050
    Abstract: The 5-pyrimidyl- ethers of this invention possess good fungicidal, herbicidal and plant-growth regulating activity.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: November 22, 1983
    Assignee: Chevron Research Company
    Inventor: Richard E. Cherpeck
  • Fluidized oligomerization
    Patent number: 4417087
    Abstract: A fluidized oligomerization process is disclosed.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: November 22, 1983
    Assignee: Chevron Research Company
    Inventor: Stephen J. Miller
  • Method for modifying electron spin resonance signals from hydrocarbon crude
    Patent number: 4415671
    Abstract: Method for enhancing electron spin resonance signals from crude petroleum by contacting the crude petroleum with a chemical which effects the population of free radical asphaltenes in the crude petroleum. The enhancement is in a positive sense when the chemical is a halogen and particularly iodine. The enhancement is in a negative sense (suppression) when the chemical is ferric chloride.
    Type: Grant
    Filed: October 30, 1980
    Date of Patent: November 15, 1983
    Assignee: Chevron Research Company
    Inventor: Stephen W. Nicksic
  • Amorphous silicon solar cells incorporating an insulating layer in the body of amorphous silicon and a method of suppressing the back diffusion of holes into an N-type region
    Patent number: 4415760
    Abstract: Hydrogenated amorphous silicon solar cells which incorporate a thin insulating layer between a photoactive layer of intrinsic hydrogenated amorphous silicon and a heavily doped radiation incident N or N.sup.+ -type layer of hydrogenated amorphous silicon.
    Type: Grant
    Filed: April 12, 1982
    Date of Patent: November 15, 1983
    Assignee: Chevron Research Company
    Inventor: Arun Madan
  • Passive solar energy water preheat system using non-freezing heat transport mediums
    Patent number: 4413615
    Abstract: A sealed thermosiphoning solar energy system is disclosed which uses oil as a nonfreezing transport fluid. The oil is heated in an absorber exposed to the sun's radiation, passes through a check valve and into thermal exchange with a second fluid. Expansion means are provided to prevent excessive pressure buildup in the system.
    Type: Grant
    Filed: May 26, 1981
    Date of Patent: November 8, 1983
    Assignee: Chevron Research Company
    Inventor: Harry W. Sigworth, Jr.
  • Multistep oligomerization process
    Patent number: 4414423
    Abstract: A multistep process for preparing high-boiling hydrocarbons from normally gaseous hydrocarbons is disclosed.
    Type: Grant
    Filed: September 25, 1981
    Date of Patent: November 8, 1983
    Assignee: Chevron Research Company
    Inventor: Stephen J. Miller
  • Selective removal and recovery of ammonia and hydrogen sulfide
    Patent number: 4414103
    Abstract: A hydrocarbon material is subjected to severe hydrotreatment and washed with only enough water to absorb the bulk of the H.sub.2 S but only a fraction of the NH.sub.3 present in the hydrocarbon material. The washed hydrotreated hydrocarbon material is separated from the water stream, and then a vapor phase is separated from the hydrocarbon material in a high pressure separator. The vapor phase is scrubbed with water to form an aqueous solution of NH.sub.3 which contains only a minor amount of H.sub.2 S (an NH.sub.3 to H.sub.2 S ratio of at least 6:1).
    Type: Grant
    Filed: April 9, 1982
    Date of Patent: November 8, 1983
    Assignee: Chevron Research Company
    Inventor: Thomas R. Farrell
  • Process for calcium fluoride production from industrial waste waters
    Patent number: 4414185
    Abstract: A process for the preparation of calcium fluoride from industrial waste waters which comprises treatment of the waste waters with potassium hydroxide, followed by lime precipitation, neutralization with carbon dioxide and filtration to provide the calcium fluoride product.
    Type: Grant
    Filed: August 9, 1982
    Date of Patent: November 8, 1983
    Assignee: Chevron Research Company
    Inventor: Jonas P. Harrison
  • Method of making a catalyst suitable for hydrometalation of hydrocarbonaceous feedstocks
    Patent number: 4411824
    Abstract: A method of manufacture of a catalyst for hydrodemetalation of feedstocks having a calculated pore diameter of at least 125 Angstroms; a surface area of at least 100 m.sup.2 /g; a pore volume of at least 0.5 cc/grams; with at least 5% of the pore volume present provided by pores having a diameter of at least 1000 Angstroms and containing no more than 6% of catalytic metals from Group VIB and no more than 3% of catalytic metals from Group VIII.
    Type: Grant
    Filed: August 11, 1982
    Date of Patent: October 25, 1983
    Assignee: Chevron Research Company
    Inventor: H. Chiu Chen
  • Heat exchanger antifoulant
    Patent number: 4410419
    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 a dialkyl fatty-acid amide is added to the stream to reduce fouling.
    Type: Grant
    Filed: July 14, 1982
    Date of Patent: October 18, 1983
    Assignee: Chevron Research Company
    Inventor: Richard L. Ferm
  • Amine substituted hydrocarbon polymer dispersant lubricating oil additives
    Patent number: 4410437
    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: March 13, 1981
    Date of Patent: October 18, 1983
    Assignee: Chevron Research Company
    Inventor: Timothy R. Erdman
  • Solar energy water preheat system
    Patent number: 4409959
    Abstract: A passive thermosiphon loop of circulating heat transport liquid transfers heat from an inclined absorber to a heat exchanger in thermal contact with a second fluid. Reverse thermosiphoning under normal conditions is prevented by a ball type check valve. Due to differences in the thermal expansion between the valve ball and the transport liquid, the valve will, however, permit reverse thermosiphoning at high temperatures.
    Type: Grant
    Filed: April 30, 1981
    Date of Patent: October 18, 1983
    Assignee: Chevron Research Company
    Inventor: Harry W. Sigworth, Jr.
  • Extracting cobalt from spent hydroprocessing catalysts with cyanide
    Patent number: 4409190
    Abstract: A process is disclosed for recovery of cobalt from spent catalyst particles. The particles are roasted, leached with an ammonia/ammonium salt leach solution and then leached with a cyanide ion leach solution.
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: October 11, 1983
    Assignee: Chevron Research Company
    Inventor: Dean A. Van Leirsburg
  • Fungicidal, herbicidal and plant growth regulating pyridyl-containing ethers
    Patent number: 4407806
    Abstract: 3-Pyridyl ethers of this invention possess good fungicidal, herbicidal and plantgrowth regulating activity.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: October 4, 1983
    Assignee: Chevron Research Company
    Inventor: Richard E. Cherpeck
  • Fungicidal 3-(N-acyl-N-arylamino)- and 3-(N-thionoacyl-N-arylamino)-gamma-butyrolactones and gamma-thiobutyrolactones
    Patent number: 4407817
    Abstract: 3-(N-acyl-N-arylamino) and 3-(N-thionoacyl-N-arylamino)-gamma-butyrolactones and thiobutyrolactones have fungicidal activity.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: October 4, 1983
    Assignee: Chevron Research Company
    Inventor: David C. K. Chan
  • Method for improving fuel economy of internal combustion engines
    Patent number: 4406803
    Abstract: Lubricating oils containing oil soluble C.sub.10 -C.sub.30 alkane-1,2-diols have been found to reduce fuel consumption in an internal combustion engine.
    Type: Grant
    Filed: April 20, 1982
    Date of Patent: September 27, 1983
    Assignee: Chevron Research Company
    Inventors: Thomas V. Liston, Timothy R. Erdman
  • Diisopropyl ether hydration in isopropanol production
    Patent number: 4405822
    Abstract: A process for producing alcohols by the direct hydration of olefins in which the ether by-product is hydrated with a large molar excess of water in a reaction zone which precedes a propylene hydration reaction zone.
    Type: Grant
    Filed: October 30, 1981
    Date of Patent: September 20, 1983
    Assignee: Chevron Research Company
    Inventor: Susan A. Bezman