Patents by Inventor Michael R. Amsden, deceased

Michael R. Amsden, deceased 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).

  • Brush conditioner wing
    Patent number: 5894622
    Abstract: A brush conditioner for a semiconductor wafer cleaning tool including a pair if opposed, rotating flexible brushes. The conditioner is a wing-like structure having a leading edge and a trailing edge. The leading edge is forced against the rotating brushes flexing them to assist in removal of foreign material. The trailing edge tapers to a point and provides stability to the wing.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: April 20, 1999
    Assignee: International Business Machines Corporation
    Inventors: Paul A. Manfredi, Douglas P. Nadeau, Raymond G. Morris, Richard A. Bartley, Michael R. Amsden, deceased