Patents by Inventor Christopher A. Roach

Christopher A. Roach 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: 20070208111
    Abstract: The invention is directed to a process and more particularly, to utilizing polymer solutions to make thick film compositions. In one embodiment the process is directed to the formation of photoimageable thick film compositions for use in photo-patterning methods to make photoimageable electrodes in flat panel display applications, including plasma display panels (PDP). Polymer solutions are obtained by directly polymerizing desired monomers in a desired solvent to form a desired polymer, rather than by dissolving a pre-made polymer in a desired solvent. Other ingredients are added to the polymer solution to directly form thick film pastes, including photoimageable thick film pastes.
    Type: Application
    Filed: March 3, 2006
    Publication date: September 6, 2007
    Inventors: Haixin Yang, Pedro Jimenez, Cherng Wang, Christopher Roach, John Pepin, Michael Barker, Vincent Yeh
  • Publication number: 20070013305
    Abstract: The invention is directed to a screen-printable getter composition comprising: (a) glass frit; and (b) pre-hydrated desiccant material; dispersed in (c) organic medium. The present invention further relates to a getter composition utilizing low-softening temperature glasses comprising, based on weight %, 1-50% SiO2, 0-80% B2O3, 0-90% Bi2O3, 0-90% PbO, 0-90% P2O5, 0-60% Li2O, 0-30% Al2O3, 0-10% K2O, 0-10% Na2O, and 0-30% MO where M is selected from Ba, Sr, Ca, Zn, Cu, Mg and mixtures thereof. The glasses described herein may contain several other oxide constituents that can substitute glass network-forming elements or modify glass structure. The desiccant material is pre-hydrated to reach its saturation level of moisture absorption. The process of pre-hydration can be done by exposing the desiccant in a normal temperature/humidity environment of for example, 25° C. and 50-60% RH. for 24 to 48 hours or up to the time when weight gain (due to moisture absorption) stops increasing.
    Type: Application
    Filed: July 18, 2005
    Publication date: January 18, 2007
    Inventors: Carl Wang, Christopher Roach, Fong-Pei Chang
  • Publication number: 20050051206
    Abstract: This invention is directed to a process for the fabrication of features on a silicon wafer utilizing ribbons comprising organic polymer and inorganic material.
    Type: Application
    Filed: October 18, 2004
    Publication date: March 10, 2005
    Inventors: Alan Carroll, Christopher Roach
  • Publication number: 20050051254
    Abstract: This invention is directed to a process for the fabrication of features on a silicon wafer utilizing ribbons comprising organic polymer and inorganic material.
    Type: Application
    Filed: October 18, 2004
    Publication date: March 10, 2005
    Inventors: Alan Carroll, Christopher Roach
  • Publication number: 20050051207
    Abstract: This invention is directed to a process for the fabrication of features on a silicon wafer utilizing fibers comprising organic polymer and inorganic material.
    Type: Application
    Filed: October 18, 2004
    Publication date: March 10, 2005
    Inventors: Alan Carroll, Christopher Roach
  • Patent number: 6599092
    Abstract: A method for fabricating a nozzle for a gas turbine engine facilitates extending a useful life of the nozzles. The nozzle includes an airfoil. The method includes forming the airfoil to include a suction side and a pressure side connected at a leading edge and a trailing edge, forming a plurality of slots in the pressure side of the airfoil extending towards the trailing edge, and extending a plurality of pins arranged in rows between the airfoil suction and pressure sides, such that at each of a first row of pins has a substantially elliptical cross-sectional area, wherein the first row of pins is between the remaining rows of pins and the airfoil pressure side slots.
    Type: Grant
    Filed: January 4, 2002
    Date of Patent: July 29, 2003
    Assignee: General Electric Company
    Inventors: Robert F. Manning, Randall B. Rydbeck, Christopher Roach
  • Publication number: 20030129054
    Abstract: A method for fabricating a nozzle for a gas turbine engine facilitates extending a useful life of the nozzles. The nozzle includes an airfoil. The method includes forming the airfoil to include a suction side and a pressure side connected at a leading edge and a trailing edge, forming a plurality of slots in the pressure side of the airfoil extending towards the trailing edge, and extending a plurality of pins arranged in rows between the airfoil suction and pressure sides, such that at each of a first row of pins has a substantially elliptical cross-sectional area, wherein the first row of pins is between the remaining rows of pins and the airfoil pressure side slots.
    Type: Application
    Filed: January 4, 2002
    Publication date: July 10, 2003
    Inventors: Robert F. Manning, Randall B. Rydbeck, Christopher Roach
  • Patent number: 6261093
    Abstract: The present invention relates to regenerative thermal or catalytic oxidizers and methods of operation thereof for oxidizing combustible components of feed gas mixtures. In accordance with the disclosed invention, operation of the heater used to supply supplemental heat to regenerative heat transfer oxidizers is controlled such that the input load to the heater is varied between a maximum input load and a nominal input load in response to a measured control temperature. The present invention provides improved temperature uniformity across the system for more efficient operation.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: July 17, 2001
    Assignee: Monsanto Company
    Inventors: Yurii S. Matros, Grigori A. Bunimovich, Christopher A. Roach