Patents by Inventor Joan Bartelt

Joan Bartelt 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).

  • Azeotropic compositions comprising fluorinated compounds for cleaning applications
    Publication number: 20080060687
    Abstract: The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.
    Type: Application
    Filed: February 28, 2007
    Publication date: March 13, 2008
    Inventors: Melodie Schweitzer, Allen Sievert, Joan Bartelt, Barbara Minor
  • Azeotropic compositions comprising fluorinated compounds for cleaning applications
    Publication number: 20070203045
    Abstract: The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.
    Type: Application
    Filed: February 28, 2007
    Publication date: August 30, 2007
    Inventors: Melodie Schweitzer, Allen Sievert, Joan Bartelt, Barbara Minor