Patents by Inventor Jeffrey Alan Shunkwiler

Jeffrey Alan Shunkwiler 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: 20190081377
    Abstract: Disclosed herein are embodiments of low temperature co-fireable dielectric materials which can be used in conjunction with high dielectric materials to form composite structures, in particular for isolators and circulators for radiofrequency components. Embodiments of the low temperature co-fireable dielectric materials can be scheelite or garnet structures, for example barium tungstate. Adhesives and/or glue is not necessary for the formation of the isolators and circulators.
    Type: Application
    Filed: September 6, 2018
    Publication date: March 14, 2019
    Inventors: Michael David Hill, Jianzhong Jiang, Jeffrey Alan Shunkwiler, Neil Bruce Coats, David Martin Firor, David Bowie Cruickshank
  • Publication number: 20180086672
    Abstract: Disclosed are embodiments of a multi-phase ceramic material which can have advantageous properties as a thermal barrier coating. In particular, embodiments of the ceramic can have high fracture toughness as well as calcium, magnesium, and aluminum silicate corrosion resistance. The improved properties of the ceramic can make the material applicable as a coating on turbines, such as airplane and industrial turbines.
    Type: Application
    Filed: September 26, 2017
    Publication date: March 29, 2018
    Inventors: Michael David Hill, Jeffrey Alan Shunkwiler
  • Publication number: 20160351917
    Abstract: Materials, device and methods related to solid oxide fuel cells (SOFCs). In some embodiments, a solid oxide fuel cell (SOFC) can include an electrochemically active component having a multiphase ceramic with a stabilized metal oxide material and a magnetoplumbite-based material. The multiphase ceramic can be configured to provide enhanced fracture toughness for the electrochemically active component. The stabilized metal oxide material can include cerium oxide, and the electrochemically active component can include an anode. One or more of such SOFC can be configured as a power source device.
    Type: Application
    Filed: May 31, 2016
    Publication date: December 1, 2016
    Inventors: Michael David HILL, Jeffrey Alan SHUNKWILER
  • Patent number: 5753581
    Abstract: This invention provides a very low cost effective method to alter the association of precious metal catalysts with specific support oxides in mixed oxide systems. The invention includes two discoveries: 1) that the isoelectric points for the three normally-used gasoline catalyst components are significantly different and the surface charges present have significant magnitude to promote attraction and repulsion of ions or charged radicals; and 2) ammine-chloride or ammine-nitrate salts both dissociate into positively charged precious metal radicals and are stable over a very wide pH range. The pH of the impregnation solution is controlled such that the surface charge of the oxide is opposite to the charge on the precious metal radical if the metal is to be supported on that oxide, and to control the pH such that all charges on the oxide to be avoided are the same as the precious metal radical.
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: May 19, 1998
    Assignee: General Motor Corporation
    Inventors: Richard Frederick Beckmeyer, Jeffrey Alan Shunkwiler, William John La Barge