Patents by Inventor Donald A. Stern

Donald A. Stern 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).

  • Method for manufacturing ionic liquid catalysts
    Publication number: 20040005985
    Abstract: A method for manufacturing ionic liquid compositions by use of a two-step process which includes the contacting, under first reaction conditions, an amine compound with a hydrogen halide that is preferably in the gaseous form to provide a first reaction mixture. The first reaction mixture is then contacted, under second reaction conditions, with a metal halide compound to form the ionic liquid end-product.
    Type: Application
    Filed: April 22, 2003
    Publication date: January 8, 2004
    Inventors: Kenneth D. Hope, Donald A. Stern, Donald W. Twomey