Lithium silicate materials

US11109949B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11109949-B2
Application numberUS-201816200187-A
CountryUS
Kind codeB2
Filing dateNov 26, 2018
Priority dateAug 7, 2003
Publication dateSep 7, 2021
Grant dateSep 7, 2021

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  1. Title

    What the patent document calls the invention.

  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools.

First claim

Opening claim text (preview).

The invention claimed is: 1. A lithium silicate dental glass-ceramic article comprising a machinable phase comprising lithium metasilicate crystalline phase that forms 30-40 vol % of the lithium silicate material, wherein the crystals in the crystalline phase are remote from each other. 2. The lithium silicate dental glass-ceramic article of claim 1 , wherein the crystalline phase comprises platelet or lamellar form crystals.

Assignees

Inventors

Classifications

  • C03C3/097Primary

    containing phosphorus, niobium or tantalum · CPC title

  • Methods or devices for making crowns · CPC title

  • for dental use · CPC title

  • comprising ceramics · CPC title

  • with glass (C03C17/34, C03C17/44 take precedence) · CPC title

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Frequently asked questions

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What does patent US11109949B2 cover?
Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools.
Who is the assignee on this patent?
Ivoclar Vivadent Ag
What technology area does this patent fall under?
Primary CPC classification C03C3/097. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Sep 07 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).