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Inventor

Dae-ok Choi

Inventor
Suwon-si, KR

Overview

3→
Patents
1992–1993
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.

H01Jprimary
H01JElectric discharge tubes or discharge lamps40%
C03BManufacture, shaping, or supplementary processes20%
C07DHeterocyclic compounds20%
Y02PClimate change mitigation technologies in the production or processing of goods20%
PatentTitleYear
5,178,572'Electron gun sealing apparatus'19935,162,534'Process for the preparation of thiazoline derivatives'19925,127,578'Dust cleaning apparatus for cleaning cathode ray tubes'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1993Patents assigned to SAMSUNG ELECTRONIC DEVICES (2)· patent assignee history
1992Patents assigned to KOREA INST SCI & TECH (1)· patent assignee history
1992Based in Seoul, KR· patent location history
1992Based in Kyunggi, KR· patent location history
1993Based in Suwon-si, KR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SAMSUNG ELECTRONIC DEVICES21992–1993
KOREA INST SCI & TECH11992
Locations
LocationPatentsSpan
Suwon-si, KR11993
Seoul, KR11992
Kyunggi, KR11992