Patents by Inventor Christopher A. Kasmer

Christopher A. Kasmer 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).

  • Process of magnetic media milling
    Patent number: 5183214
    Abstract: A process of media milling employing a mill having a magnetic circuit of magnetic impellers (11) on a shaft (12), magnetized media, and a magnetizable outer shell (10).
    Type: Grant
    Filed: April 29, 1991
    Date of Patent: February 2, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Howard Zakheim, Peter M. Clinton, James D. Goldschneider, Christopher A. Kasmer, Markus Zahn, Charles L. Hoffmeyer
  • Magnetic media mill
    Patent number: 5022592
    Abstract: Media mill having a magnetic circuit of magnetic impellers on a shaft, magnetized media, and a magnetizable outer shell which provides improved efficiency.
    Type: Grant
    Filed: July 9, 1990
    Date of Patent: June 11, 1991
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Howard Zakheim, Peter M. Clinton, James D. Goldschneider, Christopher A. Kasmer, Markus Zahn, Charles L. Hoffmeyer