logo

For the Inventor, By the Inventor

Seoul, South Korea

Ed-Tech Co., Ltd.

Calculating rank
USPTO Granted Patents = 11

% Expired Patents = 36.4

Trademarks = 1

Forward Citations = 259

Loading Chart...
Loading Chart...

11 inventors (with patents filed for the assignee):

goldMedal Edward M Schwartz (6 out of 6 patents)

silverMedal Wilburn D Everman (5 out of 7 patents)

bronzeMedal Chul-Ho Lim (4 out of 4 patents)

4.  Dong-Il Han (2 out of 4 patents)

5.  Han Sung Jung (1 out of 40 patents)

6.  Je-Hoon Oh (1 out of 1 patent)

7.  Suk-Kyu Kang (1 out of 1 patent)

8.  Soo-Yen Lim (1 out of 1 patent)

9.  Ji Hyun Lee (1 out of 65 patents)

10.  Wilburn D Evrman (1 out of 1 patent)

11.  Robert E Morgan (1 out of 1 patent)


11 patents:

1. 7428283 - Data recovery algorithm using data position detection and serial data receiver adopting the same (2008-09-23),
2. 7388998 - Apparatus and method for controlling brightness of moving image signals in real time (2008-06-17),
3. 7336315 - Apparatus and method for performing intra-field interpolation for de-interlacer (2008-02-26),
4. 6937258 - Flat panel display device (2005-08-30),
5. 6781581 - Apparatus for interfacing timing information in digital display device (2004-08-24),
6. 5083514 - Automatic vertically adjustable work surface (1992-01-28),
7. 5048784 - Adjustable inset bracket (1991-09-17),
8. 4987835 - Automatic vertically adjustable work surface (1991-01-29),
9. 4976407 - Adjustable wrist support (1990-12-11),
10. 4969403 - Automatic vertically adjustable work surface (1990-11-13),
11. 4881471 - Vertically adjustable, retrofittable workstation (1989-11-21),
Company Overview
Ed-Tech Co., Ltd. is a prominent player in the educational technology sector, specializing in the development of innovative digital learning solutions. The company focuses on creating interactive platforms and tools that enhance the learning experience for students and educators alike. With a strong emphasis on research and development, Ed-Tech is dedicated to advancing educational methodologies through technology, catering to a diverse range of educational institutions in South Korea and beyond.
Profile summary synthesized from public USPTO records and patent filings.

logo

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

11 Patents

#372 in Seoul

#1,011 in South Korea

#51,812 in the World

Seoul, KR
Seoul, South Korea

Ed-Tech Co., Ltd.

Forward Citations = 259

11 inventors:

goldMedal Edward M Schwartz (6 out of 6 patents)

silverMedal Wilburn D Everman (5 out of 7 patents)

bronzeMedal Chul-Ho Lim (4 out of 4 patents)

4.  Dong-Il Han (2 out of 4 patents)

5.  Han Sung Jung (1 out of 40 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ed-Tech Co., Ltd.. Retrieved from https://idiyas.com/company/ed-tech-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]
Loading…