Inventor

Seok Ho Choi

Inventor

Seoul, KR

Overview

2007–2020

Patent span

Mechanical engineering

Primary field (CPC F)

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

F04Dprimary

F04DNon-positive-displacement pumps19%

F24FAir-conditioning19%

C02FTreatment of water, waste water, sewage, or sludge13%

F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact13%

B01DSeparation6%

F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants6%

F28FDetails of heat-exchange and heat-transfer apparatus, of general application6%

H01GCapacitors6%

H01QAntennas, i.e. radio aerials6%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

2007–2016Patents assigned to LG ELECTRONICS INC (6)· patent assignee history

2007Based in Chungcheongnam-do, KR· patent location history

2010–2012Based in Seoul, KR· patent location history

2012–2016Patents assigned to CHOI SEOK HO (4)· patent assignee history

2012Patents assigned to LEE JUNG WOO (2)· patent assignee history

2016Based in Changwon-si, KR· patent location history

2018–2020Patents assigned to DOOSAN HEAVY IND & CONSTRUCTION CO LTD (2)· patent assignee history

2018–2020Based in Anyang-si, KR· patent location history

2020Patents assigned to DOOSAN HEAVY IND CONSTR CO LTD (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
LG ELECTRONICS INC	6	2007–2016
CHOI SEOK HOself	4	2012–2016
DOOSAN HEAVY IND & CONSTRUCTION CO LTD	2	2018–2020
LEE JUNG WOO	2	2012
DOOSAN HEAVY IND CONSTR CO LTD	1	2020

Locations