Patents by Inventor M. W. Schrepfer

M. W. Schrepfer 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).

  • Patent number: 5485923
    Abstract: A drum for the storage and transportation of particulate materials aids in the removal of fine particles and dust from the particulate material during transport by the use of a screen arrangement and trap in the bottom of the drum.
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: January 23, 1996
    Assignee: UOP
    Inventor: M. W. Schrepfer