Patents by Inventor Marcel Kiefer

Marcel Kiefer 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).

  • Dental screw driver
    Patent number: D744101
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: November 24, 2015
    Assignee: DENTSPLY International Inc.
    Inventors: Marcel Kiefer, Mattias Marklund
  • Dental implant
    Patent number: D754858
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: April 26, 2016
    Assignee: DENTSPLY International Inc.
    Inventors: Josef Saltell, Marcel Kiefer
  • Dental implant
    Patent number: D790064
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: June 20, 2017
    Assignee: DENTSPLY International Inc.
    Inventors: Josef Saltell, Marcel Kiefer
  • Dental implant
    Patent number: D804669
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: December 5, 2017
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Josef Saltell, Marcel Kiefer
  • Dental screw driver
    Patent number: D818124
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: May 15, 2018
    Assignee: DENTSPLY International Inc.
    Inventors: Marcel Kiefer, Mattias Marklund