Won Jae Choi

This inventor holds 24 USPTO granted patents and 8 published patent applications and 5 EPO patents. Top assignees: Lg Electronics Inc., Hyundai Motor Company, Kia Corporation. Active years: 2006-2026.

USPTO Granted Patents = 24 (Patent Applications = 8)

% Patents Active = 58.3

EPO Patents = 5 (Patent Applications = 12)

Average Co-Inventor Count = 4.9

ph-index = 6

Forward Citations = 90(Granted Patents)

Company Filing History:

Hyundai Motor Company

Hanwha Ocean Co., Ltd.

patents

5. 3 out of 12

Hanwha Ocean Co., Ltd.

patents

6. 2 out of 86

Daewoo Shipbuilding & Marine Engineering Co., Ltd.

patents

7. 2 out of 201

Sk Chemicals Co., Ltd.

patents

8. 1 out of 1

Research & Business Foundation Sungkyunk University

Sungkyunkwan University

where one patent can have more than one assignee

Years Active: 2006-2026

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24 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12738522 - High temperature polymer electrolyte membrane fuel cell and method for manufacturing same (2026-09-15),

2. 12736185 - Refrigerant charging system for reliquefaction system for ship (2026-09-15),

3. 12693070 - Micro-leak detection system of reliquefication system for ship (2026-07-28),

4. 12676330 - High-temperature PEMFC including polymer of intrinsic microporosity preventing phosphoric acid poisoning and method of manufacturing the same (2026-07-07),

5. 12674839 - Apparatus and method for estimating a state of a battery (2026-07-07),

6. 12529517 - Refrigerant cycle pressure control system for reliquefaction system for ship (2026-01-20),

7. 12500257 - Ionic conductivity measurement device and method for fuel cell (2025-12-16),

8. 12247706 - Boil-off gas reliquefaction system (2025-03-11),

9. 12117131 - Boil-off gas reliquefaction system and method of discharging lubricant oil from boil-off gas reliquefaction system (2024-10-15),

10. 12044363 - Boil-off gas reliquefication system and method of discharging lubricant oil from boil-off gas reliquefication system (2024-07-23),

11. 11658499 - Battery diagnosis apparatus (2023-05-23),

12. 11473730 - Boil-off gas reliquefication system, method for discharging lubricating oil in boil-off gas reliquefication system, and engine fuel supply method (2022-10-18),

13. 10889361 - Ship comprising engine (2021-01-12),

14. 9155715 - Transdermal composition comprising tolterodine (2015-10-13),

15. 8367726 - Acid salt of tolterodine having effective stability for transdermal drug delivery system (2013-02-05),

Title: The Innovative Contributions of Won Jae Choi

Introduction

Won Jae Choi is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of engineering, particularly in the area of boil-off gas reliquefaction systems. With a total of 24 patents to his name, Choi's work has garnered attention for its innovative approaches and practical applications.

Latest Patents

Choi's latest patents include a boil-off gas reliquefaction system, which is designed to efficiently manage and recycle boil-off gas (BOG). This system features a compressor that compresses BOG, a heat exchanger that cools the compressed BOG using non-compressed BOG as a refrigerant, and a pressure reducer that lowers the pressure of the cooled fluid. Additionally, the system incorporates a second oil filter, which is a cryogenic oil filter, ensuring optimal performance. Another notable patent involves a method for discharging lubricant oil from the boil-off gas reliquefaction system. This method determines the appropriate time to discharge condensed or solidified lubricant oil based on preset conditions, enhancing the system's efficiency and reliability.

Career Highlights

Throughout his career, Won Jae Choi has worked with notable companies such as LG Electronics Inc. and Hanwha Ocean Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in technology and engineering.

Collaborations

Choi has collaborated with talented individuals in his field, including Seung Tak Kang and Chang Min Choi. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Won Jae Choi's contributions to the field of engineering, particularly in boil-off gas reliquefaction systems, highlight his innovative spirit and dedication to advancing technology. His patents and collaborations reflect a commitment to excellence and a vision for a more efficient future.