Inventor

Yiu-Suk Lee

Inventor

Seoul, KR

Overview

5→

Patents

2005–2021

Patent span

Chemistry

Primary field (CPC C)

Patents· 5 as inventor

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

C07Cprimary

C07CAcyclic or carbocyclic compounds33%

Y02PClimate change mitigation technologies in the production or processing of goods33%

C07DHeterocyclic compounds11%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium11%

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers11%

PatentTitleYear

10,972,840Speaker2021 7,345,181'Process for preparing prostaglandin derivatives and starting materials for the same'2008 6,989,458'Process for preparing prostaglandin derivatives and stereospecific starting material thereof'2006 6,914,159'Process for preparing sulfamoyl-substituted phenethylamine derivatives'2005 6,852,880'Process for preparing prostalglandin derivatives and stereospecific starting material thereof'2005

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005–2006Patents assigned to YONSUNG FINE CHEMICAL CO (2)· patent assignee history

2005–2008Patents assigned to YONSUNG FINE CHEMICAL CO LTD (2)· patent assignee history

2005–2008Based in Seoul, KR· patent location history

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

2021Based in Taichung, TW· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
YONSUNG FINE CHEMICAL CO	2	2005–2006
YONSUNG FINE CHEMICAL CO LTD	2	2005–2008
MERRY ELECTRONICS SHENZHEN CO LTD	1	2021

Locations

Location	Patents	Span
Seoul, KR	4	2005–2008
Taichung, TW	1	2021