Patents by Inventor Norbert Erwin Graff

Norbert Erwin Graff 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).

  • Inhibition of Paint-Product Skin Formation
    Publication number: 20130092688
    Abstract: Paint in a container is inhibited against skinning by providing a layer of a barrier material comprising an non-VOC inhibiting composition and optionally water on the upper surface the bulk paint in the container.
    Type: Application
    Filed: September 9, 2011
    Publication date: April 18, 2013
    Applicant: THE SHERWIN-WILLIAMS COMPANY
    Inventors: Joseph Kennedy Walker, Donald Lee Betz, James Michael Cameron, Norbert Erwin Graff
  • INHIBITION OF PAINT-PRODUCT SKIN FORMATION
    Publication number: 20080210582
    Abstract: Paint in a container is inhibited against skinning by providing a layer of a barrier material comprising an inhibiting composition having a boiling point of at least 250° C. and optionally water on the upper surface the bulk paint in the container.
    Type: Application
    Filed: February 29, 2008
    Publication date: September 4, 2008
    Applicant: THE SHERWIN-WILLIAMS COMPANY
    Inventors: Donald Lee Betz, James Michael Cameron, Norbert Erwin Graff