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INTELLECTUAL PROPERTY

R&D CAPABILITIES

Intellectual Property Portfolio.

KNK continuously invests in research and development to create innovative oral care solutions. Our patented technologies and proprietary product designs support differentiated product development and provide additional value to our partners.

Certified Corporate
Research Institute

Patent & Design
Registration Activities

Product Structure
Engineering

ODM-focused
Product Development

LIST OF PATENTS

PATENT
APPLICATION &
REGISTRATION LIST

Type Title Country Application No. Registration No.
Design Registration

Toothbrush Handle (Jelly Pillow)

Type
Design Registration
Country
Korea
Application No.
30-2023-0035721
Registration No.
-
 Korea 30-2023-0035721 -
Patent

Spinneret for Manufacturing Filaments Having an Irregular Cross-Section and Filaments Manufactured Therefrom

Type
Patent
Country
Korea
Application No.
10-2019-0109308
Registration No.
10-2197602
 Korea 10-2019-0109308 10-2197602
Utility Model

Disposable Container (Mascara Container)

Type
Utility Model
Country
Korea
Application No.
20-2019-0004488
Registration No.
20-0494007
 Korea 20-2019-0004488 20-0494007
Design Registration

Toothbrush Handle (KKP10)

Type
Design Registration
Country
Korea
Application No.
30-2018-0014929
Registration No.
30-0989868
 Korea 30-2018-0014929 30-0989868
Design Registration

Toothbrush Handle (KKP09)

Type
Design Registration
Country
Korea
Application No.
30-2018-0014928
Registration No.
30-0989867
 Korea 30-2018-0014928 30-0989867
Patent

Toothbrush Including Toothbrush Head and Handle (KKP03)

Type
Patent
Country
Korea
Application No.
10-2015-0191126
Registration No.
10-1798963
 Korea 10-2015-0191126 10-1798963
Patent

Functional Toothbrush Bristle and Time Toothbrush Using the Same

Type
Patent
Country
Korea
Application No.
10-2015-0185464
Registration No.
10-1886731
 Korea 10-2015-0185464 10-1886731
Design Registration

Toothbrush Handle (KKP08)

Type
Design Registration
Country
Korea
Application No.
30-2015-0052034
Registration No.
30-0836975
 Korea 30-2015-0052034 30-0836975
Design Registration

Toothbrush Handle (KKP13)

Type
Design Registration
Country
Korea
Application No.
30-2015-0052033
Registration No.
30-0836973
 Korea 30-2015-0052033 30-0836973
Design Registration

Toothbrush Handle (KKP02)

Type
Design Registration
Country
Korea
Application No.
30-2015-0052031
Registration No.
30-0836971
 Korea 30-2015-0052031 30-0836971
Design Registration

Toothbrush Handle (KKP01)

Type
Design Registration
Country
Korea
Application No.
30-2015-0052030
Registration No.
30-0836970
 Korea 30-2015-0052030 30-0836970
Patent

Toothbrush Including Toothbrush Head and Handle (KKP05)

Type
Patent
Country
Korea
Application No.
10-2015-0191137
Registration No.
10-1769406
 Korea 10-2015-0191137 10-1769406
Patent

Toothbrush Head (KKP01)

Type
Patent
Country
Korea
Application No.
10-2015-0153334
Registration No.
10-1741486
 Korea 10-2015-0153334 10-1741486
Patent

Toothbrush Head (KKP02)

Type
Patent
Country
Korea
Application No.
10-2015-0153335
Registration No.
10-1741448
 Korea 10-2015-0153335 10-1741448
Patent

Toothbrush Head (KKP03)

Type
Patent
Country
Korea
Application No.
10-2015-0153336
Registration No.
10-1741444
 Korea 10-2015-0153336 10-1741444

Toothbrush Head (KKP03)

Toothbrush Head (KKP03)

Toothbrush Head (KKP03)

Toothbrush Head (KKP03)

Toothbrush Head (KKP03)

X

1. Purpose of Collection and Use
KNK Co., Ltd. collects personal information for the following purposes:
- Processing and responding to OEM/ODM inquiries
- Providing product information, samples, and quotations
- Follow-up communication regarding business partnership
- Customer support and after-sales service

2. Items of Personal Information Collected
Required: Full name, brand/company name, phone number, email address, country, headquarters location
Optional: Website URL, inquiry details

3. Retention and Use Period
Personal information is retained for 3 years from the date of collection and is then securely destroyed, unless a longer retention period is required by applicable law.

4. Sharing of Personal Information
KNK Co., Ltd. does not share personal information with third parties except:
- When the user has given prior consent
- When required by law or a government authority

5. Rights of the Data Subject
You may request access to, correction, deletion, or restriction of your personal information at any time by contacting us.

6. Right to Refuse Consent
You have the right to refuse consent. However, without consent, we may be unable to respond to your inquiry.

7. Privacy Officer Contact
KNK Co., Ltd.
119, Myeonghaksandan-ro, Yeondong-myeon, Sejong-si, Republic of Korea
Email: info@knkbrush.com
Tel: +82-44-862-3729

Effective Date: January 1, 2026