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Seongnam, South Korea

Jusung Engineering Co., Ltd.

USPTO Granted Patents = 163

EPO Patents = 2

Trademarks = 11

Forward Citations = 1,396

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251 inventors (with patents filed for the assignee):

Chul Joo Hwang (19 out of 19 patents)

Chul-Joo Hwang (11 out of 11 patents)

Chul Ju Hwang (11 out of 11 patents)

4. Gi-Chung Kwon (8 out of 9 patents)

5. Jeung Hoon Han (6 out of 6 patents)

6. Jae Ho Kim (6 out of 53 patents)

7. Jong Sik Kim (5 out of 5 patents)

8. Jin Hyuk Yoo (5 out of 5 patents)

9. Bu-Il Jeon (5 out of 5 patents)

10. Kyoo Hwan Lee (5 out of 5 patents)

11. Hong-Seub Kim (5 out of 6 patents)

12. Bu-Jin Ko (5 out of 5 patents)

13. Ki Bum Kim (5 out of 78 patents)

14. Jae Wan Lee (5 out of 5 patents)

15. Hyung Sup Lee (5 out of 7 patents)

Core Competencies:

Solar Cells

Substrate Processing

Gas Supply Apparatus

Chamber Cleaning

Exhaust Gas Decomposer

Substrate Inspection

Thin Film Technology

Plasma Generation

Humidity Prevention

Substrate Supporting Devices

Substrate Treatment

Gas Spraying Apparatus

163 patents: Sort by Forward Citations

1. 12477944 - Solar cell and method for manufacturing same (2025-11-18),

2. 12446351 - Substrate for solar cell, solar cell, and solar cell manufacturing method (2025-10-14),

3. 12436547 - Gas supply apparatus for substrate processing apparatus (2025-10-07),

4. 12417898 - Substrate processing apparatus (2025-09-16),

5. 12381067 - Substrate processing apparatus (2025-08-05),

6. 12371786 - Substrate processing method (2025-07-29),

7. 12334329 - Substrate processing method (2025-06-17),

8. 12255262 - Method for manufacturing solar cell (2025-03-18),

9. 12198901 - Method for cleaning chamber of substrate processing apparatus (2025-01-14),

10. 12188126 - Substrate processing apparatus (2025-01-07),

11. 12170221 - Apparatus for processing substrate (2024-12-17),

12. 12170188 - Substrate processing apparatus and interlock method thereof (2024-12-17),

13. 12142515 - Substrate processing apparatus (2024-11-12),

14. 12106941 - Substrate processing device and substrate processing method (2024-10-01),

15. 12094992 - Unit cell, solar cell comprising same, and method for manufacturing solar cell (2024-09-17),

Jusung Engineering Co., Ltd. is a leading global provider of advanced equipment and systems for the semiconductor and display industries. With over 30 years of experience, Jusung Engineering specializes in the development and manufacturing of deposition, etching, and cleaning equipment. Our innovative technologies and reliable solutions meet the demanding requirements of customers worldwide. We are committed to delivering high-quality products and excellent customer service to drive our customers' success.

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Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

163 Patents

#2 in

#130 in

#4,921 in the World

Seongnam, South Korea

Jusung Engineering Co., Ltd.

Forward Citations = 1,396

251 inventors:

Chul Joo Hwang (19 out of 19 patents)

Chul-Joo Hwang (11 out of 11 patents)

Chul Ju Hwang (11 out of 11 patents)

4. Gi-Chung Kwon (8 out of 9 patents)

5. Jeung Hoon Han (6 out of 6 patents)

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