Trademarks = 3

Forward Citations = 1

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6 inventors (with patents filed for the assignee):

Inhwan Oh (4 out of 4 patents)

Ming-Sheng Chen (3 out of 5 patents)

Subin Park (3 out of 3 patents)

4. Changsuk Lee (3 out of 5 patents)

5. Seunghwan Baek (1 out of 9 patents)

6. Jinwoo Choi (1 out of 2 patents)

7 patents: Sort by Forward Citations

1. 12202234 - Exterior film of building for protecting glass (2025-01-21),

2. 12023997 - Window film for vehicles including graphene (2024-07-02),

3. 11660847 - Protective film for windshield of vehicle (2023-05-30),

4. 11447664 - Color wrapping film for vehicle (2022-09-20),

5. 11123775 - Apparatus and method for cleaning substrates (2021-09-21),

6. 10345248 - Optical system and method for inspecting a transparent plate (2019-07-09),

7. 10241057 - Optical inspecting apparatus with an optical screening device (2019-03-26),

Company Overview

Stek Co., Ltd is a leading provider of innovative technology solutions for businesses and individuals. With a focus on cutting-edge research and development, Stek offers a wide range of products and services including software development, IT consulting, and cloud computing. Founded in 2005, Stek has established a strong reputation for delivering high-quality solutions that meet the needs of clients across various industries.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

7 Patents

#226 in Taichung

#1,849 in Taiwan

Taichung, Taiwan

Stek Co., Ltd

Forward Citations = 1

6 inventors:

Inhwan Oh (4 out of 4 patents)

Ming-Sheng Chen (3 out of 5 patents)

Subin Park (3 out of 3 patents)

4. Changsuk Lee (3 out of 5 patents)

5. Seunghwan Baek (1 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Stek Co., Ltd. Retrieved from https://idiyas.com/company/stek-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]