Patents by Inventor Cornelia KOPFMANN

Cornelia KOPFMANN 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).

  • Publication number: 20220401193
    Abstract: A hollow-cylindrical device (1) having first and second openings (2, 3) for continuous production of a dental composite block. A curable composite material (4) and a temperature control unit (5) are provided. The composite material (4) is introduced into the device (1) through the first opening. The composite material (4) is cured by energy from the temperature control unit (5). An energy input occurs across a defined length of the substantially hollow-cylindrical device (1) and/or for a defined period of time. The composite material (4) is subsequently guided through the first opening (2) of the device (1). The composite material (4) is discharged from the second opening (3). In a first region along a portion of the length of the device, the device is either provided with an insulation or the flow-through device has a heat conductivity of 0.05 to 12 W/(m×K).
    Type: Application
    Filed: August 17, 2022
    Publication date: December 22, 2022
    Inventors: Cornelia KOPFMANN, Ralf BÖHNER
  • Patent number: 11452584
    Abstract: A hollow-cylindrical device (1) having first and second openings (2, 3) for continuous production of a dental composite block. A curable composite material (4) and a temperature control unit (5) are provided. The composite material (4) is introduced into the device (1) through the first opening. The composite material (4) is cured by energy from the temperature control unit (5). An energy input occurs across a defined length of the substantially hollow-cylindrical device (1) and/or for a defined period of time. The composite material (4) is subsequently guided through the first opening (2) of the device (1). The composite material (4) is discharged from the second opening (3). In a first region along a portion of the length of the device, the device is either provided with an insulation or the flow-through device has a heat conductivity of 0.05 to 12 W/(m×K).
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: September 27, 2022
    Assignee: COLTÈNE/WHALEDENT AG
    Inventors: Cornelia Kopfmann, Ralf Böhner
  • Patent number: 10729523
    Abstract: A dental restoration, a method for the production of a dental restoration and a kit. The dental restoration comprises an outer component, in particular a shell, and an inner component, in particular a core. The inner component and the outer component contain composite material. The outer component is mountable or mounted on the inner component. The inner component is designed for attachment onto a tooth preparation, in particular a tooth stump.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: August 4, 2020
    Assignee: COLTÈNE/WHALEDENT AG
    Inventors: Ralf Böhner, Cornelia Kopfmann, Martin Schlüter, Martin Schaufelberger
  • Publication number: 20180325636
    Abstract: A hollow-cylindrical device (1) having first and second openings (2, 3) for continuous production of a dental composite block. A curable composite material (4) and a temperature control unit (5) are provided. The composite material (4) is introduced into the device (1) through the first opening. The composite material (4) is cured by energy from the temperature control unit (5). An energy input occurs across a defined length of the substantially hollow-cylindrical device (1) and/or for a defined period of time. The composite material (4) is subsequently guided through the first opening (2) of the device (1). The composite material (4) is discharged from the second opening (3). In a first region along a portion of the length of the device, the device is either provided with an insulation or the flow-through device has a heat conductivity of 0.05 to 12 W/(m×K).
    Type: Application
    Filed: September 22, 2016
    Publication date: November 15, 2018
    Applicant: COLTÈNE/WHALEDENT AG
    Inventors: Cornelia KOPFMANN, Ralf BÖHNER
  • Publication number: 20180021114
    Abstract: A dental restoration, a method for the production of a dental restoration and a kit. The dental restoration comprises an outer component, in particular a shell, and an inner component, in particular a core. The inner component and the outer component contain composite material. The outer component is mountable or mounted on the inner component. The inner component is designed for attachment onto a tooth preparation, in particular a tooth stump.
    Type: Application
    Filed: July 12, 2017
    Publication date: January 25, 2018
    Inventors: Ralf BÖHNER, Cornelia KOPFMANN, Martin SCHLÜTER, Martin SCHAUFELBERGER