Patents by Inventor Denis Dammkoehler

Denis Dammkoehler 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).

  • Hand-operated spray gun for dry-ice blasting device
    Patent number: D608856
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: January 26, 2010
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventor: Denis Dammkoehler
  • Vacuum cleaner
    Patent number: D615258
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: May 4, 2010
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventor: Denis Dammkoehler
  • Vacuum cleaner
    Patent number: D633665
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: March 1, 2011
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventor: Denis Dammkoehler
  • Floor cleaning machine
    Patent number: D642343
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: July 26, 2011
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventor: Denis Dammkoehler
  • Surface cleaning device
    Patent number: D647677
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: October 25, 2011
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventor: Denis Dammkoehler
  • Floor cleaning device
    Patent number: D651777
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: January 3, 2012
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventor: Denis Dammkoehler
  • Vacuum cleaner
    Patent number: D655874
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: March 13, 2012
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventor: Denis Dammkoehler
  • Operating panel of a floor cleaning machine
    Patent number: D657923
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: April 17, 2012
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventor: Denis Dammkoehler
  • Floor cleaning machine
    Patent number: D659308
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: May 8, 2012
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventor: Denis Dammkoehler
  • Floor cleaning machine
    Patent number: D659310
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: May 8, 2012
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventor: Denis Dammkoehler
  • Vacuum cleaner
    Patent number: D660529
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: May 22, 2012
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventors: Denis Dammkoehler, Zheyi Jin
  • Floor cleaning machine
    Patent number: D661853
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: June 12, 2012
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventor: Denis Dammkoehler
  • Vacuum cleaner
    Patent number: D667597
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: September 18, 2012
    Assignee: Alfred Kaercher GmbH & Co., KG
    Inventor: Denis Dammkoehler
  • Floor cleaning machine
    Patent number: D693071
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: November 5, 2013
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventor: Denis Dammkoehler
  • High-pressure cleaner
    Patent number: D694968
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: December 3, 2013
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventor: Denis Dammkoehler
  • Floor cleaning machine
    Patent number: D694969
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: December 3, 2013
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventor: Denis Dammkoehler
  • High-pressure cleaner
    Patent number: D695321
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: December 10, 2013
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventor: Denis Dammkoehler
  • High-pressure cleaner
    Patent number: D696824
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: December 31, 2013
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventor: Denis Dammkoehler
  • Floor cleaning machine
    Patent number: D712605
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: September 2, 2014
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventor: Denis Dammkoehler
  • Vacuum cleaner
    Patent number: D714501
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: September 30, 2014
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventor: Denis Dammkoehler