Inventor

Won B. Park

Inventor

Seoul, KR

Overview

1990–2021

Patent span

Electricity

Primary field (CPC H)

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

C07Cprimary

C07CAcyclic or carbocyclic compounds10%

C07DHeterocyclic compounds10%

C09KMaterials for miscellaneous applications, not provided for elsewhere10%

G11BInformation storage based on relative movement between record carrier and transducer10%

H01LSemiconductor devices10%

H04NPictorial communication, e.g. television10%

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers10%

H04SStereophonic systems10%

H10KOrganic electric solid-state devices10%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1990Patents assigned to SKC LTD (1)· patent assignee history

1990Based in Cheonan-si, KR· patent location history

1995Patents assigned to SAMSUNG ELECTRONICS CO LTD (1)· patent assignee history

1995Based in Suwon-si, KR· patent location history

2021Patents assigned to DOOSAN SOLUS CO LTD (1)· patent assignee history

2021Based in Seoul, KR· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations