Patents by Inventor John Patrick POLLINGER

John Patrick POLLINGER 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).

  • METHODS FOR FORMING CERAMIC CORES
    Publication number: 20180319711
    Abstract: Methods for forming ceramic cores are disclosed. A ceramic core formed using the method of the present application includes a silica depletion zone encapsulating an inner zone. The inner zone includes mullite and the silica depletion zone includes alumina. The method includes heat-treating a ceramic body in a non-oxidizing atmospheric condition for an effective temperature and time combination at a pressure less than 10? atmosphere to form the silica depletion zone at a surface of the ceramic core.
    Type: Application
    Filed: May 4, 2017
    Publication date: November 8, 2018
    Inventors: Anthony Yu-Chung KU, Xi YANG, Tao LI, John Patrick POLLINGER, Zachary Kenneth MOWRY, Frederic Joseph KLUG