Invention Grant
- Patent Title: Apparatus and method for whitening teeth
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Application No.: US10717226Application Date: 2003-11-19
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Publication No.: US08652446B2Publication Date: 2014-02-18
- Inventor: Ji-Young Kim , Jong-Ho Kim , Sug-Youn Chang , Sei-Young Yun , Hae-Young Yang , Sang-Hoon Kwak
- Applicant: Ji-Young Kim , Jong-Ho Kim , Sug-Youn Chang , Sei-Young Yun , Hae-Young Yang , Sang-Hoon Kwak
- Applicant Address: KR Seoul
- Assignee: LG Household & Healthcare Ltd.
- Current Assignee: LG Household & Healthcare Ltd.
- Current Assignee Address: KR Seoul
- Agency: Fox Rothschild LLP
- Agent Gerald P. Norton; Shahnam Sharareh
- Priority: KR2000-13636 20000317; KR2000-74599 20001208; KR10-2002-0072603 20021121; KR10-2003-0051912 20030728
- Main IPC: A61Q11/00
- IPC: A61Q11/00 ; A61K8/22

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.
Public/Granted literature
- US20040136927A1 Apparatus and method for whitening teeth Public/Granted day:2004-07-15
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