Patents by Inventor Rhonda K. Schulz

Rhonda K. Schulz 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: D334227
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: March 23, 1993
    Assignee: Ecolab Inc.
    Inventors: Elizabeth J. Gladfelter, Tina O. Outlaw, James L. Copeland, Rhonda K. Schulz, Daniel K. Boche, Jeff W. Peterson
  • Patent number: D334420
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: March 30, 1993
    Assignee: Ecolab Inc.
    Inventors: Elizabeth J. Gladfelter, Tina O. Outlaw, James L. Copeland, Rhonda K. Schulz, Daniel K. Boche, Jeff W. Peterson