Patents by Inventor Michael S. Schippers

Michael S. Schippers 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).

  • Structures including microvalves and methods of forming structures
    Patent number: 6431689
    Abstract: A structure includes a first substrate and a second substrate defining a fluid channel. A microvalve is formed on the first or second substrate. The microvalve includes a flap that is flexed by pressure exerted on the flap by the vapor on the fluid in the channel to prevent the fluid from flowing into portions of the channel. The microvalves can be formed in ink jet print heads. The microvalves can be formed in semiconductor materials by simplified methods utilizing a reduced number of masking levels.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: August 13, 2002
    Assignee: Xerox Corporation
    Inventor: Michael S. Schippers