Patents by Inventor Leo F. Nichols

Leo F. Nichols 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).

  • Reactive gas sensor
    Patent number: 4638286
    Abstract: A reactive gas sensor which utilizes an electrically conductive polymer composite which comprises an inner layer of an electrically conductive polymer, intermediate layers of a polymer which exhibits a low degree of gas permeability, and protective outer layers of a polymer which exhibits a low degree of moisture permeability. The preferred polymers for the intermediate layers are ethylene vinyl alcohol copolymers and polyvinylidene chloride. The sensor also includes means for measuring the resistance of the electrically conductive polymer.
    Type: Grant
    Filed: March 26, 1985
    Date of Patent: January 20, 1987
    Assignee: Enron Corp.
    Inventor: Leo F. Nichols