James H Ledin

US Patent:

7735542, Jun 15, 2010

Filed:

Dec 18, 2007

Appl. No.:

11/958489

Inventors:

Michael Craig Marshall - Prior Lake MN, US
James Todd Ledin - Chanhassen MN, US

Assignee:

GeoDigm Corporation - Chanhassen MN

International Classification:

B22C 7/02
B22C 9/04

US Classification:

164 35, 164 45, 164516, 164235

Abstract:

Dental appliances including multiple components and a system and method for constructing the same are disclosed herein. The dental components are designed to fit together to form the dental appliance. The components of the dental appliance are electronically modeled, printed, and pressed sequentially, separately, or as a unitary piece. Forming the dental appliance from multiple components enables each component of the dental appliance to be formed from a different material, each material having different features associated with it. In various embodiments, different materials have different colors, textures, opacities, and transformation factors associated with them. Furthermore, each component can be formed from multiple components. In some other embodiments, a support structure is designed and constructed in order to minimize deformation of a dental component during fabrication of the component.

US Patent:

7819662, Oct 26, 2010

Filed:

Jul 20, 2005

Appl. No.:

11/186391

Inventors:

Michael Craig Marshall - Prior Lake MN, US
James Todd Ledin - Chanhassen MN, US

Assignee:

Geodigm Corporation - Chanhassen MN

International Classification:

A61C 5/08

US Classification:

433218, 264 16

Abstract:

Dental appliances including multiple components and a system and method for constructing the same are disclosed herein. The dental components are designed to fit together to form the dental appliance. The components of the dental appliance are electronically modeled, printed, and pressed sequentially, separately, or as a unitary piece. Forming the dental appliance from multiple components enables each component of the dental appliance to be formed from a different material, each material having different features associated with it. In various embodiments, different materials have different colors, textures, opacities, and transformation factors associated with them. Furthermore, each component can be formed from multiple components. In some other embodiments, a support structure is designed and constructed in order to minimize deformation of a dental component during fabrication of the component.

US Patent:

20040220691, Nov 4, 2004

Filed:

May 2, 2003

Appl. No.:

10/429288

Inventors:

Andrew Hofmeister - Chanhassen MN, US
James Ledin - Chanhassen MN, US
Bob Isaacson - Edina MN, US
Bruce Hultgren - Victoria MN, US
Mike Marshall - Savage MN, US

International Classification:

G06F019/00

US Classification:

700/098000

Abstract:

A method, apparatus, and article of manufacture is disclosed for providing a dental crowns using electronic models, and more particularly to a method, apparatus, and article of manufacture for creating dental crowns using a lost-wax manufacturing process from electronic model files corresponding to patient teeth impressions and corresponding electronic models for tooth crowns. The system and method permit the electronic generation and specification of crown, bridge, and implant dental appliances that may be specified in an industry standard file specification. This specification is utilized in a rapid prototyping process to generate a wax impression for the appliance that may then be fabricated using standard lost-wax fabrication techniques.

US Patent:

20080131846, Jun 5, 2008

Filed:

Dec 18, 2007

Appl. No.:

11/958484

Inventors:

Michael Craig Marshall - Prior Lake MN, US
James Todd Ledin - Chanhassen MN, US

Assignee:

GeoDigm Corporation - Chanhassen MN

International Classification:

A61C 5/08

US Classification:

433218, 298961

Abstract:

Dental appliances including multiple components and a system and method for constructing the same are disclosed herein. The dental components are designed to fit together to form the dental appliance. The components of the dental appliance are electronically modeled, printed, and pressed sequentially, separately, or as a unitary piece. Forming the dental appliance from multiple components enables each component of the dental appliance to be formed from a different material, each material having different features associated with it. In various embodiments, different materials have different colors, textures, opacities, and transformation factors associated with them. Furthermore, each component can be formed from multiple components. In some other embodiments, a support structure is designed and constructed in order to minimize deformation of a dental component during fabrication of the component.