Patents by Inventor Michael A. Hoeppner

Michael A. Hoeppner 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: 5906737
    Abstract: A filter core unit comprising various number of segments having a wall with a plurality of holes and a means to attach one segment to a second segment whereby the length of the filter core unit can be varied by adding and subtracting segments. A method of connecting one segment to another is also disclosed.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: May 25, 1999
    Inventor: Michael A. Hoeppner
  • Patent number: D362553
    Type: Grant
    Filed: July 28, 1994
    Date of Patent: September 26, 1995
    Assignee: Hoosier Pride Plastics, Inc.
    Inventor: Michael A. Hoeppner
  • Patent number: D365381
    Type: Grant
    Filed: January 20, 1995
    Date of Patent: December 19, 1995
    Inventor: Michael A. Hoeppner