Inventor

KIM CHEOL HYUN

KR5 patents

⚠️ This page may combine multiple inventors who share the name “KIM CHEOL HYUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KOREA RES INST CHEM TECH

2 patents

US6423812B1Jul 23, 2002

Process of preparing polycarbonates

KOREA RES INST CHEM TECH0 citations48

US6525109B2Feb 25, 2003

Process of preparing polycarbonates using microwave

KOREA RES INST CHEM TECH1 citations47

KIM CHEOL-HYUN

1 patent

US8619423B2Dec 31, 2013

Fan module having dust-collecting function and dust-collecting unit for the same

KIM CHEOL-HYUN9 citations76

KOREA INST ENERGY RES

1 patent

US10385282B2Aug 20, 2019

Method and system for upgrading and separating hydrocarbon oils

KOREA INST ENERGY RES0 citations34

DAE DONG STONE ENG CO LTD

1 patent

US11919198B2Mar 5, 2024

Apparatus for punching anchor bolt insertion hole

DAE DONG STONE ENG CO LTD0 citations31