Patents by Inventor Stacy Johnston

Stacy Johnston 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).

  • Conversion of ethers to olefins
    Publication number: 20070100186
    Abstract: Ethers are cracked to olefins using a gamma-alumina catalyst in the presence of ammonia. The use of ammonia improves the selectivity to linear alpha olefins in comparison to cracking reactions in the absence of ammonia. The use of ammonia is convenient in comparison to known processes which employ alumina which as been treated with an amine. A preferred process produces octene-1 from 1-methoxyoctane.
    Type: Application
    Filed: October 18, 2006
    Publication date: May 3, 2007
    Inventors: Xiaoliang Gao, Andrzej Krzywickl, Stacy Johnston