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Inventor

Chang Ki Lee

Inventor
Daejeon, KR

Overview

12→
Patents
1999–2018
Patent span
Electricity
Primary field (CPC H)

Patents· 12 as inventor

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

G06Fprimary
G06FElectric digital data processing17%
H01LSemiconductor devices7%
H02JElectric power networks7%
H04MTelephonic communication7%
H10BElectronic memory devices7%
H10DInorganic electric semiconductor devices7%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h107%
A47JKitchen equipment3%
A61GTransport, personal conveyances, or accommodation specially adapted for patients or disabled persons3%
G01CMeasuring distances, levels or bearings3%
PatentTitleYear
10,130,540Body lifting device for bed20189,245,849'Semiconductor device with air gap'20168,999,837'Semiconductor device with air gap'20158,847,547'Wireless charging system and method'20148,554,540'Topic map based indexing and searching apparatus'20138,432,129'Wireless charging system and method'20138,380,713'Apparatus for question answering based on answer trustworthiness and method thereof'20138,050,909'Apparatus and method for post-processing dialogue error in speech dialogue system using multilevel verification'20117,929,850'Method for measuring distance using a camera module'20117,725,408'Apparatus and method for constructing learning data'20107,697,712'Speaker device for improving antenna property in a wireless portable terminal'20105,983,294'Synchronous cross-connect system with the function of ring network interworking using backplane interconnection'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2013Patents assigned to KOREA ELECTRONICS TELECOMM (5)· patent assignee history
1999–2013Based in Daejeon, KR· patent location history
2010–2014Patents assigned to SAMSUNG ELECTRONICS CO LTD (4)· patent assignee history
2010–2014Based in Seoul, KR· patent location history
2013Patents assigned to HEO JEONG (2)· patent assignee history
2013Patents assigned to LEE CHANG KI (2)· patent assignee history
2013Patents assigned to OH HYO-JUNG (2)· patent assignee history
2015–2016Based in Gyeonggi-do, KR· patent location history
2018Based in Seongnam-si, KR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KOREA ELECTRONICS TELECOMM51999–2013
SAMSUNG ELECTRONICS CO LTD42010–2014
HEO JEONG22013
LEE CHANG KIself22013
OH HYO-JUNG22013
Locations
LocationPatentsSpan
Daejeon, KR51999–2013
Seoul, KR42010–2014
Gyeonggi-do, KR22015–2016
Seongnam-si, KR12018