Patents by Inventor Steven L. Keen

Steven L. Keen 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).

  • Fluorescence-based chemical detection of amine-based substances
    Patent number: 10830764
    Abstract: Various techniques are provided to determine the presence of trace chemicals corresponding to various materials of interest. In one example, a method includes providing a chemical reporter of a chemical detector. The chemical reporter includes protonated 2-[5-methoxy-2-(4-phenyl-quinoline-2yl)-phenyl]-ethanol. A vapor-phase amine compound is subsequently received at the chemical reporter. The chemical detector then detects a response of the chemical reporter to the amine compound to determine whether materials of interest are present. Additional methods and related devices are also provided.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: November 10, 2020
    Assignee: FLIR Detection, Inc.
    Inventors: Lara B. Wald, Steven L. Keen
  • FLUORESCENCE-BASED CHEMICAL DETECTION OF AMINE-BASED SUBSTANCES
    Publication number: 20180180599
    Abstract: Various techniques are provided to determine the presence of trace chemicals corresponding to various materials of interest. In one example, a method includes providing a chemical reporter of a chemical detector. The chemical reporter includes protonated 2-[5-methoxy-2-(4-phenyl-quinoline-2yl)-phenyl]-ethanol. A vapor-phase amine compound is subsequently received at the chemical reporter. The chemical detector then detects a response of the chemical reporter to the amine compound to determine whether materials of interest are present. Additional methods and related devices are also provided.
    Type: Application
    Filed: December 14, 2017
    Publication date: June 28, 2018
    Inventors: Lara B. Wald, Steven L. Keen