Patents by Inventor Duayne Whitehurst

Duayne Whitehurst 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: 8747204
    Abstract: A system, method and device for playing SNAG-IT© on an electronic device is provided. The device includes an electronic circuit, an input device and a display. The method includes receiving a selection of the number and location of human players, the number of computer players and the number of decks for the game, a selection of the personality type and urges for each computer player; by the electronic. Next, the cards are electronically shuffled and each player is dealt a predetermined number of cards. An electronic game board is generated and displayed, and the electronic circuit provides each player a game turn in succession, until a game ending event occurs.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: June 10, 2014
    Assignee: Pixel After Pixel, Inc.
    Inventors: Timothy Whitehurst, Duayne Whitehurst
  • Publication number: 20120196662
    Abstract: A system, method and device for playing SNAG-IT© on an electronic device is provided. The device includes an electronic circuit, an input device and a display. The method includes receiving a selection of the number and location of human players, the number of computer players and the number of decks for the game, a selection of the personality type and urges for each computer player; by the electronic. Next, the cards are electronically shuffled and each player is dealt a predetermined number of cards. An electronic game board is generated and displayed, and the electronic circuit provides each player a game turn in succession, until a game ending event occurs.
    Type: Application
    Filed: January 11, 2012
    Publication date: August 2, 2012
    Inventors: Timothy Whitehurst, Duayne Whitehurst
  • Patent number: 6551501
    Abstract: Described herein is a combined process for improved hydrotreating of diesel fuels, in which the feed to be hydrotreated is pretreated with a selective adsorbent prior to the hydrotreating step to remove polar materials, especially nitrogen containing compounds (N-compounds). The selective adsorption process can employ either liquid or solid adsorbents. After contact of the adsorbent with the diesel fuel feed, the adsorbent containing undesired polar compounds is separated from the diesel fuel. The separated adsorbent is then subjected to a two step procedure for regeneration.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: April 22, 2003
    Assignee: Haldor Topsoe A/S
    Inventors: Darrell Duayne Whitehurst, Michael Brorson, Kim Grøn Knudsen, Per Zeuthen, Barry H. Cooper
  • Patent number: 5481057
    Abstract: A process for catalytic cracking and C3/C4 olefin alkylation with phosphorus stabilized faujasite catalyst is disclosed. Catalytic cracking produces C3 and C4 olefins, which are alkylated using phosphorus stabilized and water activated cracking catalyst. Spent alkylation catalyst may be discharged into the FCC unit.
    Type: Grant
    Filed: March 25, 1994
    Date of Patent: January 2, 1996
    Assignee: Mobil Oil Corporation
    Inventors: Weldon K. Bell, Tracy J. Huang, Rudolph M. Lago, Ying-Yen P. Tsao, D. Duayne Whitehurst
  • Patent number: 5466361
    Abstract: Aqueous sulfur and caustic component-containing waste streams are disposed of in an environmentally acceptable manner employing a process featuring integrated coking and gasification operations.
    Type: Grant
    Filed: October 28, 1993
    Date of Patent: November 14, 1995
    Assignee: Mobil Oil Corporation
    Inventors: Roland H. Heck, Heinz Heinemann, P. T. Reischman, Paul B. Venuto, D. Duayne Whitehurst
  • Patent number: 5143879
    Abstract: This invention relates to a method for removing organic directing agents from as-synthesized molecular sieves comprising:(a) contacting said porous synthetic material with polar solvent having dissolved therein at least one cation donor, wherein said polar solvent is characterized by solubility parameters f.sub.d, f.sub.p, and f.sub.h wherein the values of solubility parameters f.sub.d, f.sub.p, and f.sub.h are defined by a circular region of the Teas diagram of Figure 41, said circular region having a center defined by the coordinates (f.sub.d =46, f.sub.p =22, f.sub.
    Type: Grant
    Filed: July 18, 1991
    Date of Patent: September 1, 1992
    Assignee: Mobil Oil Corporation
    Inventor: D. Duayne Whitehurst
  • Patent number: 5139621
    Abstract: An azeotropic distillation method for separating diamondoids from a near-boiling solvent. The method is particularly useful for recovering diamondoids extracted from a produced natural gas stream via hydrocarbon solvent injection.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: August 18, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Richard A. Alexander, D. Duayne Whitehurst
  • Patent number: 5080776
    Abstract: A two-stage method is provided for converting diamondoid-containing wash oils to gasoline comprising a first hydrocracking stage and a second reforming stage. In the most preferred embodiment, process conditions are controlled to effect a substantially hydrogen-balanced conversion of diamondoid-containing solvent to a motor gasoline blending component.
    Type: Grant
    Filed: June 14, 1990
    Date of Patent: January 14, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Randall D. Partridge, D. Duayne Whitehurst
  • Patent number: 5019665
    Abstract: Diamondoid compounds are concentrated in a solvent mixture containing at least 20% by weight of normal and slightly branched C.sub.5 -C.sub.30 paraffins by selectively converting the paraffins to lower boiling aliphatic hydrocarbons and separating the lower boiling aliphatics from the solvent mixture to yield a concentrated solvent mixture enriched in diamondoid compounds. Useful shape selective catalysts include zeolites having Constraint Indices from about 1 to about 12, such as ZSM-5 and MCM-22.
    Type: Grant
    Filed: April 18, 1990
    Date of Patent: May 28, 1991
    Assignee: Mobil Oil Corp.
    Inventors: Randall D. Partridge, D. Duayne Whitehurst
  • Patent number: 5019660
    Abstract: Polymeric compositions of matter and methods of making the same are disclosed, said polymeric compositions comprising at least one monomer having the structure of one selected from the group consisting of diamantane, triamantane and the higher adamantalogs, said monomer being bonded through at least one double bond extending through a methylene position of said monomer.
    Type: Grant
    Filed: January 30, 1990
    Date of Patent: May 28, 1991
    Assignee: Mobil Oil Corporation
    Inventors: Orville L. Chapman, D. Duayne Whitehurst
  • Patent number: 4133646
    Abstract: An improved two-stage coal liquefaction process is provided, wherein solvent-boiling range phenolics, produced in the solubilization of the coal feed, are removed wholly or partially from recycle solvent at some point in the process prior to recycle to the first stage to control the level of phenolics in both stages of the process. The two-stage process involves a mild short contact time first stage operation, the removal of inorganic sulfur, ash and coal solids followed by a second stage operation, the severity of which is controlled as a function of the final product desired.
    Type: Grant
    Filed: June 29, 1977
    Date of Patent: January 9, 1979
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Malvina Farcasiu, Thomas O. Mitchell, Darrell Duayne Whitehurst
  • Patent number: 4111856
    Abstract: This specification discloses an insoluble resin-metal compound complex, the method for its preparation, and its use in carrying out a catalyzed reaction. The complex is a weak base anion exchange resin which has been contacted with a solution of a coordination compound having at least two ligands connected to at least one central metal atom to bond chemically the resin to the metal atom by replacement of at least one of the ligands of the coordination compound by a functional group of the weak base anion exchange resin. The complex can be used as a catalyst for hydrogenation, carbon monoxide insertion, polymerization, isomerization, vinyl ester exchange, and ethylene oxidation reactions, among others.
    Type: Grant
    Filed: August 29, 1974
    Date of Patent: September 5, 1978
    Assignee: Mobil Oil Corporation
    Inventors: Werner O. Haag, Darrell Duayne Whitehurst
  • Patent number: 4098727
    Abstract: This specification discloses a process for the production of oxygenated compounds, more specifically aldehydes and alcohols, by reacting an olefin with hydrogen and carbon monoxide in the presence of, as a catalyst, an insoluble polymer containing a functional group, which may be an amine, thiol, phosphine, or arsine group, having chemically bonded thereto a metal of Group VIII of the Periodic Table. The metal can be, for example, rhodium, cobalt, or ruthenium. The olefin can contain more than one carbon-to-carbon double bond, may be an open chain or a cyclic olefin, and may be substituted. Further, the olefin may be contained in a refinery stream such as a cracked gasoline. The reaction may be carried out in the presence of a polar solvent.
    Type: Grant
    Filed: January 19, 1971
    Date of Patent: July 4, 1978
    Assignee: Mobil Oil Corporation
    Inventors: Werner O. Haag, Darrell Duayne Whitehurst
  • Patent number: 4086261
    Abstract: Hydrogenation-dehydrogenation of suitable feedstock is provided wherein such feedstock is subjected to hydrogenation-dehydration conditions in the presence of a catalytic amount of a solid containing, at least in part, a synthetic amorphous solid prepared by hydrolyzing and polymerizing in the presence of water a silane having the formula R(Si)X.sub.3, wherein R is a nonhydrolyzable organic group, X is a hydrolyzable group and (Si) is selected from the group consisting of ##STR1## AND ##STR2## AND CALCINING THE POLYMERIZED PRODUCT, SAID SILANE BEING ADMIXED WITH A SECOND COMPOUND, R'.sub.n MY.sub.m, wherein R' is selected from the group consisting of the same groups as R, Y is selected from the group consisting of the same groups as X and oxygen, M is at least one member selected from the group consisting of the elements of Groups IIIA, IVA, IVB, VA, VB, VIB, VIIB and VIII of the Periodic Table, m is any number greater than 0 and up to 8 and n is from 0 to any number less than 8.
    Type: Grant
    Filed: November 4, 1976
    Date of Patent: April 25, 1978
    Assignee: Mobil Oil Corporation
    Inventors: Thomas Owen Mitchell, Darrell Duayne Whitehurst
  • Patent number: 4053534
    Abstract: Organic compound conversion in the presence of a new class of heterogeneous catalyst is provided. Said new class of heterogeneous catalyst comprises a substrate having a minimum surface area of about 10 m.sup.2 /g and having pores with a minimum pore diameter of about 5 Angstrom Units, said substrate being modified by at least one amine functional member coordinated to a metal function, said amine functional member acting as a bridging member between said substrate and said metal function.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: October 11, 1977
    Assignee: Mobil Oil Corporation
    Inventors: Thomas Owen Mitchell, Darrell Duayne Whitehurst
  • Patent number: 4046668
    Abstract: Extraction of hydrocarbons from tar sands with a light naphtha/methanol solvent system results in rapid decrepitation of the tar-sand aggregate and separation of organic matter into three phases. Distribution of the extracted and non-extracted organic material is among the phases. The most desirable, non-polar organic materials are recovered from the light naphtha phase; more polar soluble constituents are recovered from the methanol phase; and less desirable asphaltenes separate as a precipitate.
    Type: Grant
    Filed: January 12, 1976
    Date of Patent: September 6, 1977
    Assignee: Mobil Oil Corporation
    Inventors: Malvina Farcasiu, Darrell Duayne Whitehurst
  • Patent number: 3994978
    Abstract: A cross-linked polystyrene resin modified by the presence therein of chemically bound sulfur provides a highly selective sorbent for removal of heavy metal contaminants from liquids containing the same.
    Type: Grant
    Filed: October 7, 1974
    Date of Patent: November 30, 1976
    Assignee: Mobil Oil Corporation
    Inventor: Darrell Duayne Whitehurst
  • Patent number: 3983055
    Abstract: Novel amorphous siliceous materials having shape-selective sorption properties are prepared by a novel process of (1) hydrolyzing an organosilicon compound of the formula R[Si]X.sub.3 alone or in the presence of one or more compounds either of the formula R'.sub.n MY.sub.m, wherein R and R' are non-hydrolyzable organic groups, X is a hydrolyzable group, Y is the same as X or oxygen, [Si] is silicon or --Si(R).sub.2 --O--Si , M is metal or non-metal, including silicon, of any group of the Periodic Table other than IA, IIA, VIIA or O, m is a number over 0 and up to 8 and n is 0 or a number less than 8, or an inorganic compound consisting of an anionic portion made up of M and y and a cationic portion of either hydrogen, alkali or alkaline earth metal or ammonium; (2) effecting condensation polymerization of the hydrolyzed product; and (3) calcining the resulting polymerized product to convert all the R and R' groups to hydroxy or hydrogen.
    Type: Grant
    Filed: March 14, 1974
    Date of Patent: September 28, 1976
    Assignee: Mobil Oil Corporation
    Inventors: Thomas O. Mitchell, Darrell Duayne Whitehurst
  • Patent number: 3980583
    Abstract: Complexed metals bonded to inorganic oxides are a new class of heterogeneous catalysts which display high upper reaction temperature limits, exceptional chemical and thermal stability and good catalytic activity for organic compound conversion. The catalyst of this invention comprises a substrate having a minimum surface area of about 10 m.sup.2 /g and having pores with a minimum pore diameter of about 5 Angstrom Units, said substrate being modified by at least one amine functional member coordinated to a metal function, said amine functional member acting as a bridging member between said substrate and said metal function.Also herein provided is a novel method of organic compound conversion which comprises contacting said organic compound with a catalytic amount of the above catalyst under organic compound conversion conditions.
    Type: Grant
    Filed: February 19, 1974
    Date of Patent: September 14, 1976
    Assignee: Mobil Oil Corporation
    Inventors: Thomas Owen Mitchell, Darrell Duayne Whitehurst
  • Patent number: 3954883
    Abstract: This specification discloses a method for carrying out catalytic polystep organic reactions at low temperature. The method is applicable to reactions wherein an initial reactant forms at least one intermediate product in one step of the reaction and an intermediate product forms a desired product in another step of the reaction. One of these steps is catalyzed by an acid group or a basic group and another step is catalyzed by a metal group or a metal compound group. The reaction is carried out by contacting the initial reactant with an ion exchange resin containing chemically bonded thereto as catalytic sites an acid group or a basic group and containing finely dispersed therein as catalytic sites at a distance from the other catalytic sites of the order of molecular dimensions a metal group or a metal compound group.
    Type: Grant
    Filed: May 10, 1974
    Date of Patent: May 4, 1976
    Assignee: Mobil Oil Corporation
    Inventors: Werner O. Haag, Darrell Duayne Whitehurst