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.:
Date of Patent:
Mar. 17, 2026
Filed:
Jan. 09, 2020
Applicant:
Gc Corporation, Shizuoka, JP;
Inventors:
Katsuhito Kato, Itabashi-ku, JP;
Shigenori Akiyama, Itabashi-ku, JP;
Toshihiko Azuma, Itabashi-ku, JP;
Assignee:
GC CORPORATION, Sunto-gun, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61C 13/00 (2006.01); C03C 4/00 (2006.01); C03C 10/00 (2006.01);
U.S. Cl.
CPC ...
A61C 13/0022 (2013.01); C03C 4/0021 (2013.01); C03C 10/0027 (2013.01);
Abstract
A block for dental prostheses is in the form of a column or a board, a main crystalline phase of the block being of lithium disilicate, and when the block is observed in a field of view of a partially enlarged cross section of the block, the proportion of the total area of crystals having a length of at least 0.5 μm, the crystals appearing in the field of view, to an area of the field of view is at most 21%.
Kato, Katsuhito. (2026). Block for dental prostheses (U.S. Patent No. 12575916). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12575916
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile