Patents by Inventor Marcel Schweiger

Marcel Schweiger 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).

  • Low temperature-sintering apatite glass ceramic
    Patent number: 6620747
    Abstract: A low-temperature-sintering apatite glass ceramic is described which is characterized by a high chemical stability, a low coefficient of expansion as well as high translucency and which is particularly suitable on its own or together with glasses or other glass ceramics as coating or veneering material for ceramic dental restorations.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: September 16, 2003
    Assignee: Ivoclar Vivadent AG
    Inventors: Marcel Schweiger, Volker Rheinberger, Wolfram Höland
  • Sinterable lithium disilicate glass ceramic
    Patent number: 6606884
    Abstract: High-strength sinterable lithium disilicate glass ceramics are described which can be further processed in particular by pressing in the viscous state to shaped dental products.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: August 19, 2003
    Assignee: Ivoclar AG
    Inventors: Marcel Schweiger, Martin Frank, Volker Rheinberger, Wolfram Hoeland
  • Sinterable lithium disilicate glass ceramic
    Patent number: 6514893
    Abstract: High-strength sinterable lithium disilicate glass ceramics are described which can be further processed in particular by pressing in the viscous state to shaped dental products.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: February 4, 2003
    Assignee: Ivoclar AG
    Inventors: Marcel Schweiger, Martin Frank, Volker Rheinberger, Wolfram Hoeland
  • Sinterable lithium disilicate glass ceramic
    Publication number: 20020134110
    Abstract: High-strength sinterable lithium disilicate glass ceramics are described which can be further processed in particular by pressing in the viscous state to shaped dental products.
    Type: Application
    Filed: October 22, 2001
    Publication date: September 26, 2002
    Inventors: Marcel Schweiger, Martin Frank, Volker Rheinberger, Wolfram Hoeland
  • Process for the preparation of shaped translucent lithium disilicate glass ceramic products
    Patent number: 6420288
    Abstract: A process is described for the preparation of shaped translucent lithium disilicate glass ceramic products which are characterized by high strength and good chemical stability and may be processed by pressing in the plastic state or milling to finished glass ceramic products which may be used in particular as dental restorations.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: July 16, 2002
    Assignee: Ivoclar AG
    Inventors: Marcel Schweiger, Sascha Cramer von Clausbruch, Wolfram Höland, Volker Rheinberger
  • Low-temperature-sintering potassium-zinc-silicate glass
    Publication number: 20020035025
    Abstract: Potassium-zinc-silicate glasses are described which because of their high chemical stability as well as their optical properties and favorable working properties are suitable in particular as coating or veneering materials for ceramic dental suprastructures and thus for the preparation of all-ceramic dental restorations, such as crowns or bridges.
    Type: Application
    Filed: June 22, 2001
    Publication date: March 21, 2002
    Applicant: Ivoclar Vivadent AG
    Inventors: Marcel Schweiger, Volker Rheinberger, Wolfram Holand
  • Polymerizable composite material
    Patent number: 6353039
    Abstract: A composite material is described which contains polymerizable monomers plus a special transparent glass having high release of calcium ions and fluorine ions and, because of this release property and in particular of its optical properties, can be used as a restoration material in dentistry.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: March 5, 2002
    Assignee: Ivoclar AG
    Inventors: Volker Rheinberger, Ulrich Salz, Wolfram Höland, André Rumphorst, Kurt Grabher, Urs Karl Fischer, Marcel Schweiger, Norbert Moszner
  • Low temperature-sintering apatite glass ceramic
    Publication number: 20020022563
    Abstract: A low-temperature-sintering apatite glass ceramic is described which is characterized by a high chemical stability, a low coefficient of expansion as well as high translucency and which is particularly suitable on its own or together with glasses or other glass ceramics as coating or veneering material for ceramic dental restorations.
    Type: Application
    Filed: June 22, 2001
    Publication date: February 21, 2002
    Applicant: Ivoclar Vivadent AG
    Inventors: Marcel Schweiger, Volker Rheinberger, Wolfram Holand
  • Lithium disilicate glass ceramics dental product
    Patent number: 6342458
    Abstract: High-strength sinterable lithium disilicate glass ceramics are described which can be further processed in particular by pressing in the viscous state to shaped dental products.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: January 29, 2002
    Assignee: Ivoclar AG
    Inventors: Marcel Schweiger, Martin Frank, Volker Rheinberger, Wolfram Hoeland
  • PROCESS FOR THE PREPARATION OF SHAPED TRANSLUCENT LITHIUM DISILICATE GLASS CERAMIC PRODUCTS
    Publication number: 20020010063
    Abstract: A process is described for the preparation of shaped translucent lithium disilicate glass ceramic products which are characterized by high strength and good chemical stability and may be processed by pressing in the plastic state or milling to finished glass ceramic products which may be used in particular as dental restorations.
    Type: Application
    Filed: November 6, 1998
    Publication date: January 24, 2002
    Inventors: MARCEL SCHWEIGER, SASCHA CRAMER VON CLAUSBRUCH, WOLFRAM HOLAND, VOLKER RHEINBERGER
  • Method of controlling an oven
    Patent number: 6303059
    Abstract: A method of controlling an oven for producing tooth replacement components. An electric motor moves a piston that acts upon a moldable restoration material. The restoration material is introduced into a muffle oven having an oven hood that can be removed from the muffle. The compactibility curve is established as a function of the type of dental material utilized. Immediately after conclusion of the mold time, the motor is turned off and the oven hood is removed.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: October 16, 2001
    Assignee: Ivoclar A.G.
    Inventors: Hans-Peter Foser, Gottfried Rohner, Wolfram Holand, Marcel Schweiger, Johannes Lorunser, Horst Ulbricht
  • Sinterable lithium disilicate glass ceramic
    Patent number: 5968856
    Abstract: High-strength sinterable lithium disilicate glass ceramics are described which can be further processed in particular by pressing in the viscous state to shaped dental products.
    Type: Grant
    Filed: September 5, 1997
    Date of Patent: October 19, 1999
    Assignee: Ivoclar AG
    Inventors: Marcel Schweiger, Martin Frank, Volker Rheinberger, Wolfram Hoeland
  • Leucite-containing phosphosilicate glass-ceramic
    Patent number: 5698019
    Abstract: A leucite-containing phosphosilicate glass-ceramic is described which, in addition to a leucite crystalline phase and at least one further crystalline phase, also contains one or more glass phases.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: December 16, 1997
    Assignee: Ivoclar AG
    Inventors: Martin Frank, Marcel Schweiger, Volker Rheinberger, Wolfram Hoeland