Patents by Inventor David D. Koehler

David D. Koehler 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: 6591227
    Abstract: An apparatus for assessing the operation of a machine as used by an operator with a given tool is disclosed. The present system includes a unique tracking tag associated with a given tool. An input device monitors use of the tool along with a given operator, wherein a cycle counter monitors use of the tool by the operator for an elapsed time. A processor/controller is employed to generate corresponding reports.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: July 8, 2003
    Inventor: David D. Koehler
  • Publication number: 20020038198
    Abstract: An apparatus for assessing the operation of a machine as used by an operator with a given tool is disclosed. The present system includes a unique tracking tag associated with a given tool. An input device monitors use of the tool along with a given operator, wherein a cycle counter monitors use of the tool by the operator for an elapsed time. A processor/controller is employed to generate corresponding reports.
    Type: Application
    Filed: June 5, 2001
    Publication date: March 28, 2002
    Inventor: David D. Koehler