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Daejeon, South Korea

Sung-Cheol Chang

This inventor holds 7 USPTO granted patents and 3 published patent applications and 1 EPO patent. Top assignees: Electronics and Telecommunications Research Institute, Hanaro Telecom., Inc., Kt Corporation. Active years: 2007-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sung-Cheol Chang. Retrieved from https://idiyas.com/inventor/sung-cheol-chang-k7sinb29

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

USPTO Granted Patents = 7 

% Patents Active = 28.6


Average Co-Inventor Count = 3.0

ph-index = 3

Forward Citations = 34(Granted Patents)


Company Filing History:

goldMedal7 out of 11,790 
 
Electronics and Telecommunications Research Institute
 patents
silverMedal5 out of 91 
 
Hanaro Telecom., Inc.
 patents
bronzeMedal5 out of 1,257 
 
Kt Corporation
 patents
4. 5 out of 132,108 
 
Samsung Electronics Co., Ltd.
 patents
5. 5 out of 1,080 
 
Sk Telecom Company, Ltd.
 patents
6. 2 out of 78 
 
Ktfreetel Co., Ltd
 patents
where one patent can have more than one assignee

Years Active: 2007-2015

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7 patents (USPTO):Explore Patents
1. 8934448 - Handover method in wireless portable internet system (2015-01-13),
2. 8479270 - Method for allocating authorization key identifier for wireless portable internet system (2013-07-02),
3. 8208851 - Apparatus and method for relaying between base station and mobile station, and method for receiving control information (2012-06-26),
4. 7978855 - Method for allocating authorization key identifier for wireless portable internet system (2011-07-12),
5. 7907733 - Method for managing traffic encryption key in wireless portable internet system and protocol configuration method thereof, and operation method of traffic encryption key state machine in subscriber station (2011-03-15),
6. 7904070 - Method and device for searching and deallocating abnormal terminal in wireless portable internet system (2011-03-08),
7. 7174166 - Handover method in next generation mobile communication system (2007-02-06),

Title: Sung-Cheol Chang: Pioneering Inventor from Daejeon, KR

Introduction: Sung-Cheol Chang is a distinguished inventor hailing from the vibrant city of Daejeon, South Korea. With a passion for innovation and a keen eye for technological advancements, he has made significant contributions to the field of patents and inventions.

Latest Patents: Sung-Cheol Chang's latest patents focus on cutting-edge technologies in the fields of renewable energy, artificial intelligence, and biotechnology. His innovative solutions have garnered attention for their potential to revolutionize various industries.

Career Highlights: Throughout his illustrious career, Sung-Cheol Chang has been recognized for his groundbreaking inventions that have pushed the boundaries of traditional thinking. His commitment to excellence and relentless pursuit of innovation have set him apart as a visionary in the world of patents.

Collaborations: Sung-Cheol Chang has collaborated with leading research institutions, universities, and companies to bring his inventions to life. His ability to work seamlessly with multidisciplinary teams has led to the successful development and commercialization of several groundbreaking technologies.

Conclusion: In conclusion, Sung-Cheol Chang stands as a trailblazing inventor whose work continues to inspire and shape the future of innovation. His dedication to pushing the boundaries of what is possible serves as a testament to his unwavering commitment to excellence in the world of patents and inventions.

Profile summary based on public USPTO records.
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]
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