Patents by Inventor Laurence L. Earnhart

Laurence L. Earnhart 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).

  • Process for the manufacture and recovery of alkali-metal tetraorganylborates
    Patent number: 5189222
    Abstract: Process for the manufacture and recovery of alkali-metal tetraorganylborates. A mixed solvent and liquid/liquid contactor configuration is used in the system which aids in the recovery of the product.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: February 23, 1993
    Assignee: Optima Chemicals, Inc.
    Inventors: Eugene C. Ashby, Laurence L. Earnhart, Daniel W. Tedder, Jagvir Singh
  • Apparatus for making alkali-metal tetraorganylborates
    Patent number: 5078974
    Abstract: Apparatus for the manufacture and recovery of alkali-metal tetraorganylborates. A mixed solvent and liquid/liquid contactor configuration is used in the system which aids in the recovery of the product.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: January 7, 1992
    Assignee: AFF, Inc.
    Inventors: Eugene C. Ashby, Laurence L. Earnhart, Daniel W. Tedder, Jagvir Singh