Suwon, South Korea

Woo Jin Chang

This inventor holds 54 USPTO granted patents and 3 published patent applications, primarily in Vehicle Transmission (CPC class F16H). Top assignees: Hyundai Motor Company, Kia Motors Corporation, Kia Corporation. Active years: 2011-2021.

USPTO Granted Patents = 54 

% Patents Active = 53.7

Average Co-Inventor Count = 8.7

ph-index = 5

Forward Citations = 87(Granted Patents)

Forward Citations (Not Self Cited) = 78(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Suwon, KR (2011)
  • Gyeonggi-do, KR (2017 - 2020)
  • Suwon-si, KR (2017 - 2021)

Company Filing History:


Years Active: 2011-2021

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Areas of Expertise:
Automatic Transmission
Power Transmission
Hybrid Electric Vehicle
Planetary Gear Train
Dual Clutch Transmission
Vehicle System
Synchronizer Apparatus
Hydraulic Pressure Supply
Motor Driving Vehicle
Transmission Apparatus
54 patents (USPTO):Explore Patents

Title: The Innovative Journey of Woo Jin Chang

Introduction: Woo Jin Chang, a talented inventor hailing from Suwon-si, South Korea, has made significant contributions to the field of technology with his creative and groundbreaking ideas.

Latest Patents: Woo Jin Chang's latest patents include a cutting-edge smart home device that revolutionizes the way we interact with our living spaces, and a novel medical device aimed at improving patient care and outcomes.

Career Highlights: Throughout his illustrious career, Woo Jin Chang has been recognized for his innovative spirit and dedication to pushing the boundaries of technology. His work has garnered praise for its practical applications and potential to improve the quality of life for people around the world.

Collaborations: Woo Jin Chang has collaborated with leading tech companies and research institutions to bring his inventions to life. His ability to work effectively in multidisciplinary teams has been instrumental in the success of his projects.

Conclusion: In conclusion, Woo Jin Chang stands as a shining example of a visionary inventor who continues to make a positive impact through his groundbreaking innovations. His passion for technology and commitment to excellence serve as inspiration for aspiring inventors worldwide.

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