Inventor

Yongbum Cha

Inventor

Daejeon, KR

Overview

3→

Patents

2020–2021

Patent span

Chemistry

Primary field (CPC C)

Patents· 3 as inventor

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

C07Dprimary

C07DHeterocyclic compounds14%

H01LSemiconductor devices14%

H10KOrganic electric solid-state devices14%

C01BNon-metallic elements7%

C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds7%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium7%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments7%

C09KMaterials for miscellaneous applications, not provided for elsewhere7%

H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy7%

H05BElectric heating7%

PatentTitleYear

11,094,889Heterocyclic compound and organic light emitting element comprising same2021 11,081,650Spiro compound and organic light-emitting element comprising same2021 10,797,308Batteries with anodes of carbon-coated macro-porous silicon2020

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2020Patents assigned to UNIV WASHINGTON STATE (1)· patent assignee history

2020Based in Pullman, WA, US· patent location history

2021Patents assigned to LG CHEMICAL LTD (2)· patent assignee history

2021Based in Daejeon, KR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
LG CHEMICAL LTD	2	2021
UNIV WASHINGTON STATE	1	2020

Locations

Location	Patents	Span
Daejeon, KR	2	2021
Pullman, Washington, US	1	2020