Patents by Inventor Dirk Jan Marinus Den Dekker

Dirk Jan Marinus Den Dekker 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).

  • Assembly of filtering apparatus and replaceable filter; and filtering apparatus and filter for use therein
    Patent number: 5674381
    Abstract: A filtering apparatus and replaceable filter assembly including an electronic filter identification system having an electronic label on the filter and a read-out mechanism on the filtering apparatus. The read-out mechanism is connected to a control unit of the filtering apparatus and the control unit is influenced by the read-out mechanism. The control unit may be actuable only upon disposing a filter in the filtering apparatus having a proper or predetermined electronic label. The filter identification system may also be interactive. The electronic label on the filter includes a read/write memory which can store the number of operating hours of the filter.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: October 7, 1997
    Assignee: Doctro A.V.V.
    Inventor: Dirk Jan Marinus Den Dekker
  • Assembly of filtering apparatus and replaceable filter; and filtering apparatus and filter for use therein
    Patent number: RE39361
    Abstract: A filtering apparatus and replaceable filter assembly including an electronic filter identification system having an electronic label on the filter and a read-out mechanism on the filtering apparatus. The read-out mechanism is connected to a control unit of the filtering apparatus and the control unit is influenced by the read-out mechanism. The control unit may be actuable only upon disposing a filter in the filtering apparatus having a proper or predetermined electronic label. The filter identification system may also be interactive. The electronic label on the filter includes a read/write memory which can store the number of operating hours of the filter.
    Type: Grant
    Filed: March 29, 1994
    Date of Patent: October 24, 2006
    Assignee: Doctro A.V.V.
    Inventor: Dirk Jan Marinus Den Dekker