Chang-Hoi Koo

This inventor holds 84 USPTO granted patents, plus 30 CIPO patents and 26 EPO patents, primarily in Wireless Communication (CPC class H04B7-216). Top assignees: Samsung Electronics Co., Ltd., Beijing Samsung Telecom R&d Center. Active years: 2002-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chang-Hoi Koo. Retrieved from https://idiyas.com/inventor/chang-hoi-koo

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

USPTO Granted Patents = 84

% Patents Active = 88.1

CIPO Patents = 30 (Patent Applications = 1)

EPO Patents = 26 (Patent Applications = 7)

Average Co-Inventor Count = 4.2

ph-index = 24

Forward Citations = 1,653(Granted Patents)

Forward Citations (Not Self Cited) = 1,624(Dec 10, 2025)

Inventors with similar research interests:

🔬 See more inventors

Location History:

Kyunggi-do, KR (2002)
Kyonggi, KR (2003)
Songnam, KR (2005 - 2006)
Soungnam-Shi, KR (2003 - 2009)
Seongnam-si., KR (2010)
Songnam-shi, KR (2003 - 2014)
Gyeonggi-do, KR (2012 - 2015)
Kyonggi-do, KR (2004 - 2016)
Seongnam-si, KR (2007 - 2019)

Company Filing History:

84 out of 132,108

Samsung Electronics Co., Ltd.

patents

1 out of 49

Beijing Samsung Telecom R&d Center

patents

where one patent can have more than one assignee

Years Active: 2002-2019

Loading Chart...

Areas of Expertise:

Handover Operations

Channel Quality Measurement

Resource Allocation

Mobile Communication

Broadband Wireless Access

Traffic Indication Message

Interactive Data Service

Neighbor Base Station

Reverse Transmission Control

Ranging Slots

Service Delay Minimization

Sleep Mode Management

84 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10271248 - System and method for performing handover operation in broadband wireless access communication system (2019-04-23),

2. 9356728 - Method of controlling reverse transmission in a mobile communication system (2016-05-31),

3. 9113493 - Method of requesting allocation of uplink resources for extended real-time polling service in a wireless communication system (2015-08-18),

4. 8717968 - Method of controlling reverse transmission in a mobile communication system (2014-05-06),

5. 8553585 - Method for measuring and reporting channel quality in a broadband wireless access communication system (2013-10-08),

6. 8380197 - System and method for allocating a channel quality information channel in a communication system (2013-02-19),

7. 8374611 - Method for compulsorily performing handover in broadband wireless communication system (2013-02-12),

8. 8331933 - Method for providing multi-level access services in common access channel (2012-12-11),

9. 8254314 - Method of requesting allocation of uplink resources for extended real-time polling service in a wireless communication system (2012-08-28),

10. 8160026 - System and method for performing handover in a broadband wireless access communication system (2012-04-17),

11. 8112088 - Method for compulsorily performing handover in broadband wireless communication system (2012-02-07),

12. 8077673 - System and method for performing handover in a broadband wireless access communication system (2011-12-13),

13. RE42573 - Method for measuring and reporting channel quality in a broadband wireless access communication system (2011-07-25),

14. 7920868 - System and method for performing a fast handover in a broadband wireless access communication system (2011-04-05),

15. 7920525 - Method for measuring and reporting channel quality in a broadband wireless access communication system (2011-04-05),

Title: Chang-Hoi Koo: Pioneering Inventor from Seongnam-si, South Korea

Introduction: Chang-Hoi Koo is a distinguished inventor hailing from Seongnam-si, South Korea, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Chang-Hoi Koo holds several patents in the realm of electronics and telecommunications, showcasing his expertise and creativity in developing cutting-edge solutions for modern challenges.

Career Highlights: With a career spanning over two decades, Chang-Hoi Koo has worked tirelessly to push the boundaries of technological advancements, earning recognition for his innovative approach and problem-solving skills.

Collaborations: Throughout his career, Chang-Hoi Koo has collaborated with leading tech companies and research institutions, fostering a culture of innovation and knowledge-sharing to drive progress in the industry.

Conclusion: Chang-Hoi Koo stands as a beacon of inspiration in the world of inventors, with his passion for innovation and dedication to excellence paving the way for a brighter future in technology.

Profile summary based on public USPTO records.