Patents by Inventor Bruce E. Johnsen

Bruce E. Johnsen 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).

  • QUANTITATIVE AEROSOL GENERATOR (QAG)
    Publication number: 20090108090
    Abstract: A liquid comprising an analyte can be nebulized to produce droplets, and the droplets can be entrained in a carrier fluid flow. A portion of the droplets can be selected to remain entrained in the carrier fluid flow, thereby producing a selected droplet fluid flow including the carrier fluid and the selected portion of the droplets. The selected droplet fluid flow can be dried to produce an aerosol flow containing particles comprising the analyte. In addition, an amount of the liquid consumed in producing the aerosol flow can be quantified.
    Type: Application
    Filed: December 31, 2008
    Publication date: April 30, 2009
    Applicant: Cooper Environmental Services LLC
    Inventors: John A. Cooper, Douglas C. Barth, Bruce E. Johnsen