Patents by Inventor Charles Yarbrough

Charles Yarbrough 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).

  • Publication number: 20060281954
    Abstract: This invention relates to a process for the production of an alcohol, the process comprising (a) reacting an olefin and water in the presence of a catalyst under conditions sufficient to form a crude alcohol stream comprising alcohol, and a dialkyl ether; (b) separating at least a portion of the crude alcohol stream into an alcohol-containing stream and a dialkyl ether stream; (c) contacting at least a portion of the dialkyl ether stream with an ether decomposition catalyst, the ether decomposition catalyst comprising a mixed metal oxide having the following composition XmYnZpOq where X is at least one metal selected from Group 4 of the Periodic Table of Elements, Y is at least one metal selected from Group 3 (including the Lanthanides and Actinides) and Group 6 of the Periodic Table of Elements and Z is at least one metal selected from Groups 7, 8, and 11 of the Periodic Table of Elements; m, n, p, and q are the atomic ratios of their respective components and, when m is 1, n is from about 0.01 to about 0.
    Type: Application
    Filed: June 8, 2005
    Publication date: December 14, 2006
    Inventors: Charles Yarbrough, Brian Roberts, Dennis Davoren, Kenneth Buturla, Carl Katzenstein, Doron Levin, Hans Korsten, Vijay Swarup
  • Publication number: 20060229481
    Abstract: This invention relates to a method of making an olefin from a dialkyl ether comprising (a) introducing an ether having a formula CxH2x+1CyH2y+1 into a thermal or catalytic cracking unit processing a hydrocarbon feedstock; and (b) decomposing at least a portion of the ether to form an olefin having a formula CxH2x and/or CyH2y and an alcohol having a formula CxH2x+1 and/or CyH2y+1OH, wherein x and y independently range from about 1 to about 30. This invention also relates to a method of reducing coking in a thermal or catalytic cracking unit comprising (a) introducing an ether, having a formula CxH2x+1OCyH2y+1, into the cracking unit processing a hydrocarbon feedstock in an amount effective to reduce coke formation relative to processing the hydrocarbon feedstock in the absence of the ether, wherein x and y independently range from about 1 to about 30.
    Type: Application
    Filed: April 12, 2005
    Publication date: October 12, 2006
    Inventors: Charles Yarbrough, Vijay Swarup, Patrick Maher, Albert Hu, Michael Bedell
  • Publication number: 20050270137
    Abstract: A dimensionally flexible sparse matrix comprising multiple ports connected to a plurality of interconnected universal switches is disclosed. Each universal switch has at least three terminals and is switchable to connect any pair or all three terminals together. The plurality of interconnected universal switches are independently switchable to connect any one or more ports of the sparse matrix to any subset of the other ports. The sparse matrix may also be configurable to duplicate the connectivity of a variety of dimensionally different switch matrices by designating a first subset of the multiple ports as row ports and a second subset of the remaining ports as column ports with the added flexibility of connecting row-to-row and/or column-to column. The small physical size of signal stubs in the universal switches results in a signal path between any pair of terminals that may be suitable for the transmission of signal frequencies greater than approximately 500 mega-hertz.
    Type: Application
    Filed: May 21, 2004
    Publication date: December 8, 2005
    Inventors: Charles Yarbrough, James Reimund, Rajesh Sukumaran, Michel Haddad
  • Publication number: 20050259491
    Abstract: A universal switch, comprising a plurality of terminals and a plurality of interconnected independently switchable switches coupled to the terminals, where the plurality of interconnected switches are configurable to connect any subset of the terminals to any other subset of the terminals, and optionally, to disconnect all the terminals. One implementation includes a first terminal, a second terminal, a third terminal, and a plurality of interconnected switches coupled to the terminals. The plurality of interconnected switches are configurable to implement a variety of interconnections between the terminals, including: the first terminal connected only to the second terminal, the first terminal connected only to the third terminal, the second terminal connected only to the third terminal, the first terminal connected to the second terminal and the third terminal, and optionally, all three terminals disconnected.
    Type: Application
    Filed: May 21, 2004
    Publication date: November 24, 2005
    Inventors: Charles Yarbrough, James Reimund, Michel Haddad, Rajesh Sukumaran
  • Publication number: 20050182284
    Abstract: A selectivated molecular sieve, e.g., ZSM-22 or ZSM-23, is used as olefin oligomerization catalyst to provide product, e.g., octenes and dodecenes from butene, having a low degree of branching and hindered double bonds.
    Type: Application
    Filed: March 28, 2003
    Publication date: August 18, 2005
    Inventors: Jon Stanat, Georges Mathys, David Turner, Jane Cheng, Stephen Beadle, Cesar Cheng Guajardo, Roger Eijkhoudt, Allen Godwin, Ernest Green, Charles Yarbrough, Raphael Caers, Carolyn Duncan, Ramzi Saleh
  • Publication number: 20050177009
    Abstract: A process for selectively converting a dialkyl ether to the corresponding alkene and alkanol comprises contacting a feed containing at least one dialkyl ether with a catalyst comprising a mixed metal oxide which comprises at least one metal selected from Group 4 of the Periodic Table of Elements and at least one metal selected from Group 3 (including the Lanthanides and Actinides) and Group 6 of the Periodic Table of Elements.
    Type: Application
    Filed: December 16, 2004
    Publication date: August 11, 2005
    Inventors: Doron Levin, Shifang Luo, James Vartuli, Charles Yarbrough, Dane Grenoble
  • Publication number: 20050165264
    Abstract: In a process for preparing an alkylaromatic hydrocarbon composition an olefinic hydrocarbon mixture and an aromatic compound are contacted under alkylation conditions with an aromatic alkylation catalyst selected from a homogeneous acid catalyst and heterogeneous acid catalyst comprising a molecular sieve having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstroms. The olefinic hydrocarbon mixture comprises at least 5 wt % by weight of mono-olefin oligomers of the empirical formula: CnH2n wherein n is greater than or equal to 10, the mono-olefin oligomers comprising at least 20 percent by weight of olefins having at least 12 carbon atoms, and the olefins having at least 12 carbon atoms having an average of from 0.8 to 2.0 C1-C3 alkyl branches per carbon chain.
    Type: Application
    Filed: March 28, 2003
    Publication date: July 28, 2005
    Applicant: ExxonMobil Chemical Patents Inc.
    Inventors: Carolyn Duncan, David Turner, Jane Cheng, Charles Yarbrough, Raphael Caers, Ramzi Saleh, James Propp
  • Patent number: 4694973
    Abstract: A device for warming and illuminating pre-packaged, pre-wetted disposable towels is provided. The unit also secures a plastic canister of disposable towels so that the towels may be dispensed with one hand. A cup sized to enclose the canister in an upper sector has a supporting dish, upon the upper surface of which is provided a series of lips to engage various diameter plastic canisters containing the towels. The dish has a recessed bowl at its center in which one or more small incandescent light bulbs are mounted to warm the fluid pool within the canister and to provide illumination through a translucent window portion of the cup. The top of the dispenser is capped to retain the container from above, while the dish is spring mounted within the cup to assure a snug vertical fit of the container within the cup. A dispenser opening is provided in the cap of the unit, through which the towels from the container are pulled out.
    Type: Grant
    Filed: December 2, 1985
    Date of Patent: September 22, 1987
    Assignee: Warmwipes, Inc.
    Inventors: K. Daniel Rose, Charles Yarbrough, Alan F. Strachan