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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12746102 B1

PDFFull Text
Date of Patent:
Sep. 29, 2026

Filed:

Apr. 06, 2022

Dental bulk block for cad/cam machining process and manufacturing method of the same

Applicant:

Hass Co., Ltd., Gangwon-do, KR;

Inventors:

Hyung Bong Lim, Gyeonggi-do, KR;

Yong Su Kim, Gangwon-do, KR;

Assignee:

HASS CO., LTD., Gangneung-si, KR;

Attorneys:

NKL LAW

Jae Youn Kim

Primary Examiner:

Elizabeth Collister

Int. Cl.
CPC ...
A61C 13/00 (2006.01); A61C 5/73 (2017.01); A61C 5/77 (2017.01); A61C 8/00 (2006.01); C03B 32/02 (2006.01); C03C 4/00 (2006.01); C03C 10/00 (2006.01);
U.S. Cl.
CPC ...
A61C 13/0022 (2013.01); A61C 5/73 (2017.02); A61C 5/77 (2017.02); A61C 8/0012 (2013.01); C03B 32/02 (2013.01); C03C 4/0021 (2013.01); C03C 10/0027 (2013.01); C03C 2203/52 (2013.01);
Abstract

A dental bulk block for a CAD/CAM machining process. The dental bulk block is a glass-ceramic block having a crystalline phase embedded in an amorphous glass matrix. The crystalline phase includes lithium disilicate as a main crystalline phase, no sub-crystalline phase exists, and the crystalline phase has a mean grain size of 0.01 to 1.0 μm and a crystallinity degree of 25 to 45%. The dental bulk block can improve machinability during cutting such as CAD/CAM machining in the state of a high-strength workpiece with high flexural strength, thereby reducing a tool resistance and a wear rate, increasing a tool life span, and reducing edge chipping during a machining process. In addition, a dental restoration with desired translucency variations can be manufactured through a simple process of machining a block and altering post-heat treatment conditions, and thus can be realized with various shades.

Find Patent Forward Citations

Lim, Hyung. (2026). Dental bulk block for cad/cam machining process and manufacturing method of the same (U.S. Patent No. 12746102). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12746102

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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