Patents by Inventor John R. Cheney

John R. Cheney 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 mill blank assembly
    Patent number: 7214435
    Abstract: A mill blank assembly for a dental prosthesis includes a milling section and a support section for supporting the assembly in a milling machine. In certain embodiments, the milling section is adhesively bonded to the support section by a direct chemical bond that provides enhanced resistance to unintentional detachment of the milling section from the support section during a subsequent machining operation. Optionally, the support section includes a passageway that receives a quantity of flowable dental restorative material used to make the milling section, such that the restorative material that is located in the passageway provides additional resistance when hardened to unintentional detachment of the milling section from the support section.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: May 8, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Darin J. Meyertholen, Robert M. Biegler, Ryan B. Quast, Dean K. Reidt, John R. Cheney
  • Dental mill blank assembly
    Publication number: 20040067383
    Abstract: A mill blank assembly for a dental prosthesis includes a milling section and a support section for supporting the assembly in a milling machine. In certain embodiments, the milling section is adhesively bonded to the support section by a direct chemical bond that provides enhanced resistance to unintentional detachment of the milling section from the support section during a subsequent machining operation. Optionally, the support section includes a passageway that receives a quantity of flowable dental restorative material used to make the milling section, such that the restorative material that is located in the passageway provides additional resistance when hardened to unintentional detachment of the milling section from the support section.
    Type: Application
    Filed: October 3, 2003
    Publication date: April 8, 2004
    Applicant: 3M Innovative Properties Company
    Inventors: Darin J. Meyertholen, Robert M. Biegler, Ryan B. Quast, Dean K. Reidt, John R. Cheney
  • Method for making a dental mill blank assembly
    Patent number: 6669875
    Abstract: A mill blank assembly for a dental prosthesis includes a milling section and a support section for supporting the assembly in a milling machine. In certain embodiments, the milling section is adhesively bonded to the support section by a direct chemical bond that provides enhanced resistance to unintentional detachment of the milling section from the support section during a subsequent machining operation. Optionally, the support section includes a passageway that receives a quantity of flowable dental restorative material used to make the milling section, such that the restorative material that is located in the passageway provides additional resistance when hardened to unintentional detachment of the milling section from the support section.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: December 30, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Darin J. Meyertholen, Robert M. Biegler, Ryan B. Quast, Dean K. Reidt, John R. Cheney
  • Dental mill blank and support stub assembly
    Patent number: 6627327
    Abstract: A mill blank assembly for making a dental prosthesis includes a milling section and a support section. The support section is adapted to fit in a chuck or collect of a milling machine. One of the milling section and the support section includes a projection that extends into a recess of the other, in order to enhance the strength of the bond between the milling section and the support section. As a result, the completed assembly is less likely to fracture or become disassembled during the milling process.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: September 30, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Dean K. Reidt, Darin J. Meyertholen, John R. Cheney, Robert M. Biegler, Robert E. Brunsell
  • Dental mill blank and support stub assembly
    Publication number: 20030073394
    Abstract: A mill blank assembly for making a dental prosthesis includes a milling section and a support section. The support section is adapted to fit in a chuck or collet of a milling machine. One of the milling section and the support section includes a projection that extends into a recess of the other, in order to enhance the strength of the bond between the milling section and the support section. As a result, the completed assembly is less likely to fracture or become disassembled during the milling process.
    Type: Application
    Filed: November 13, 2002
    Publication date: April 17, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Dean K. Reidt, Darin J. Meyertholen, John R. Cheney, Robert M. Biegler, Robert E. Brunsell
  • Method of making a dental mill blank and support stub assembly
    Patent number: 6482284
    Abstract: A mill blank assembly for making a dental prosthesis includes a milling section and a support section. The support section is adapted to fit in a chuck or collet of a milling machine. One of the milling section and the support section includes a projection that extends into a recess of the other, in order to enhance the strength of the bond between the milling section and the support section. As a result, the completed assembly is less likely to fracture or become disassembled during the milling process.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: November 19, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Dean K. Reidt, Darin J. Meyertholen, John R. Cheney, Robert M. Biegler, Robert E. Brunsell
  • Dental mill blank assembly and method for making the same
    Publication number: 20020074675
    Abstract: A mill blank assembly for a dental prosthesis includes a milling section and a support section for supporting the assembly in a milling machine. In certain embodiments, the milling section is adhesively bonded to the support section by a direct chemical bond that provides enhanced resistance to unintentional detachment of the milling section from the support section during a subsequent machining operation. Optionally, the support section includes a passageway that receives a quantity of flowable dental restorative material used to make the milling section, such that the restorative material that is located in the passageway provides additional resistance when hardened to unintentional detachment of the milling section from the support section.
    Type: Application
    Filed: December 18, 2000
    Publication date: June 20, 2002
    Applicant: 3M Innovative Properties Company
    Inventors: Darin J. Meyertholen, Robert M. Biegler, Ryan B. Quast, Dean K. Reidt, John R. Cheney