Patents by Inventor Larry M. Stevens

Larry M. Stevens 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: 8562941
    Abstract: The present invention is a method that perturbs the initial crystallization of a material from a less desired phase into a more desired phase. More specifically, the present invention is a method to form a different crystallization of a zeolite, mesoporous material, SAPO4, AlPO4 or porous inorganic oxide after the hydrothermal synthesis has started and a precursor crystalline phase has formed.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: October 22, 2013
    Assignee: Exxonmobil Research and Engineering Company
    Inventors: Ivy D. Johnson, Hilda B. Vroman, Simon C. Weston, Larry M. Stevens
  • Patent number: 5701945
    Abstract: The invention relates to a system and method for the automated spin-casting production of molded articles. The system includes a casting turntable and a processing turntable which are rotatively mounted, immediately adjacent to one another. The casting turntable has several spin modules mounted thereon for rotatively supporting mold assemblies. Casting preparation and pouring mechanisms are mounted around the periphery of the casting turntable. The turntable indexes the mold assemblies and positions the assemblies for preparation, pouring and solidification of the cast products. The processing turntable receives the mold assemblies and solidified castings from the casting turntable. Multiple processing stations are mounted around the periphery of the processing table for the removal of the castings from the mold assemblies and preparation of the mold assemblies for additional casting operations. The mold assemblies are returned to the casting table from the processing table for additional casting processes.
    Type: Grant
    Filed: September 7, 1995
    Date of Patent: December 30, 1997
    Assignee: CMI-Equipment & Engineering
    Inventors: Kenneth D. McKibben, Alan P. Gould, Thomas E. Wuepper, Daniel D. Minor, Mark T. Salgat, David Marthaler, Jackie M. Speaks, Robert L. Macheske, David Good, Richard A. Gillette, Philip L. Bond, Donald C. Coyle, Darrell Rentfrow, Thomas O. Stiens, Larry M. Stevens