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 8652446 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 18, 2014

Filed:

Nov. 19, 2003
Applicants:

Ji-young Kim, Daejeon, KR;

Jong-ho Kim, Daejeon, KR;

Sug-youn Chang, Daejeon, KR;

Sei-young Yun, Seoul, KR;

Hae-young Yang, Daejeon, KR;

Sang-hoon Kwak, Daejeon, KR;

Inventors:

Ji-Young Kim, Daejeon, KR;

Jong-Ho Kim, Daejeon, KR;

Sug-Youn Chang, Daejeon, KR;

Sei-Young Yun, Seoul, KR;

Hae-Young Yang, Daejeon, KR;

Sang-Hoon Kwak, Daejeon, KR;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61Q 11/00 (2006.01); A61K 8/22 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed herein is a pair of dry type patches for teeth whitening, having a patch for upper teeth and a patch for lower teeth, in which the patch for upper teeth has a shape different from the patch for lower teeth, and each patch has a controlled width and shape such that the contact area of each patch with gums is minimized. In the patch for upper teeth, a central portion covering right and left upper central incisors is widest. In the patch for lower teeth, either portion covering right and left lower canine teeth is widest. Since the dry type patches covers all the portions of the teeth while minimizing the contact area with gums, no or little irritation is caused and wearability is excellent.


Find Patent Forward Citations

Kim, Ji-Young. (2014). Apparatus and method for whitening teeth (U.S. Patent No. 8652446). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8652446

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