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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 12076209 B1

PDFFull Text
Date of Patent:
Sep. 03, 2024

Filed:

Oct. 25, 2021

Multilayer dental appliances and related methods and systems

Applicant:

Align Technology, Inc., San Jose, CA (US);

Inventors:

Chunhua Li, Cupertino, CA (US);

Yan Chen, Cupertino, CA (US);

Heinz Pudleiner, Krefeld, DE;

Klaus Meyer, Dormagen, DE;

Joerg Nickel, Dormagen, DE;

Craig Pehlert, Lenox, MA (US);

Assignee:

ALIGN TECHNOLOGY, INC., San Jose, CA (US);

Attorney:

Wilson Sonsini Goodrich & Rosati

Primary Examiner:

Jacob T Minskey

Assistant Examiner:

Caroline Beha

Int. Cl.
CPC ...
A61C 7/08 (2006.01); A61C 7/00 (2006.01); B29C 51/14 (2006.01); B29K 67/00 (2006.01); B29K 75/00 (2006.01); B32B 7/022 (2019.01); B32B 25/08 (2006.01); B32B 25/20 (2006.01); B32B 27/08 (2006.01); B32B 27/28 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B32B 27/36 (2006.01); B32B 27/40 (2006.01); A61C 13/00 (2006.01); A61C 19/06 (2006.01); A61F 5/56 (2006.01); A63B 71/08 (2006.01); B29L 31/00 (2006.01); B32B 25/14 (2006.01);
U.S. Cl.
CPC ...
A61C 7/08 (2013.01); B29C 51/14 (2013.01); B32B 7/022 (2019.01); B32B 25/08 (2013.01); B32B 25/20 (2013.01); B32B 27/08 (2013.01); B32B 27/281 (2013.01); B32B 27/285 (2013.01); B32B 27/286 (2013.01); B32B 27/308 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 27/365 (2013.01); B32B 27/40 (2013.01); A61C 7/00 (2013.01); A61C 13/00 (2013.01); A61C 19/06 (2013.01); A61F 5/56 (2013.01); A63B 71/085 (2013.01); B29K 2067/00 (2013.01); B29K 2075/00 (2013.01); B29K 2995/0026 (2013.01); B29K 2995/007 (2013.01); B29K 2995/0077 (2013.01); B29K 2995/0082 (2013.01); B29L 2031/753 (2013.01); B32B 25/14 (2013.01); B32B 27/283 (2013.01); B32B 27/30 (2013.01); B32B 27/302 (2013.01); B32B 2250/03 (2013.01); B32B 2250/24 (2013.01); B32B 2250/40 (2013.01); B32B 2274/00 (2013.01); B32B 2307/40 (2013.01); B32B 2307/412 (2013.01); B32B 2307/50 (2013.01); B32B 2307/51 (2013.01); B32B 2307/536 (2013.01); B32B 2307/54 (2013.01); B32B 2307/546 (2013.01); B32B 2319/00 (2013.01); B32B 2323/00 (2013.01); B32B 2323/04 (2013.01); B32B 2323/10 (2013.01); B32B 2323/16 (2013.01); B32B 2333/04 (2013.01); B32B 2367/00 (2013.01); B32B 2371/00 (2013.01); B32B 2375/00 (2013.01); B32B 2377/00 (2013.01); B32B 2383/00 (2013.01); B32B 2535/00 (2013.01); B32B 2555/00 (2013.01); Y10T 428/31551 (2015.04); Y10T 428/31565 (2015.04); Y10T 428/31786 (2015.04);
Abstract

A dental appliance for positioning a patient's teeth includes a removable orthodontic tooth positioning appliance having teeth receiving cavities shaped to directly receive at least some of the patient's teeth and apply a resilient positioning force to the patient's teeth. The appliance includes a hard polymer layer having a hard polymer layer elastic modulus disposed between a first soft polymer layer having a first soft polymer layer elastic modulus and a second soft polymer layer having a second soft polymer layer elastic modulus. The hard polymer layer elastic modulus is greater than each of the first soft polymer layer elastic modulus and the second soft polymer layer elastic modulus. At least one of the first soft polymer layer and the second soft polymer layer has a flexural modulus of greater than about 35,000 psi.

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