Inventor

Cheol-Hyun Kang

Inventor

Seoul, KR

Overview

3→

Patents

2004–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Wprimary

H04WWireless communication networks43%

H04LTransmission of digital information, e.g. telegraphic communication29%

H04BTransmission14%

Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use14%

PatentTitleYear

11,050,816Apparatus and method for reducing power consumption in electronic device2021 7,043,238'CDMA terminal for providing roaming service to GSM service subscriber in CDMA service area'2006 6,681,111'Roaming service system for GSM service subscriber in CDMA service area, and method for registering locations and transmitting and receiving signals and short messages using the system'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004Patents assigned to KOREA TELECOM FREETEL CO LTD (1)· patent assignee history

2004–2006Based in Seoul, KR· patent location history

2006Patents assigned to KT FREETEL CO LTD (1)· patent assignee history

2021Patents assigned to SAMSUNG ELECTRONICS CO LTD (1)· patent assignee history

2021Based in Hwaseong-si, KR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KOREA TELECOM FREETEL CO LTD	1	2004
KT FREETEL CO LTD	1	2006
SAMSUNG ELECTRONICS CO LTD	1	2021

Locations

Location	Patents	Span
Seoul, KR	2	2004–2006
Hwaseong-si, KR	1	2021