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Inventor

Byeong Hak Jo

Inventor
Suwon-si, KR

Overview

4→
Patents
2004–2021
Patent span
Human necessities
Primary field (CPC A)

Patents· 4 as inventor

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

A61Kprimary
A61KPreparations for medical, dental or toiletry purposes29%
A61QSpecific use of cosmetics or similar toiletry preparations29%
H03FAmplifiers14%
H03KPulse technique14%
H04BTransmission14%
PatentTitleYear
10,903,836Radio-frequency switch with voltage equalization202110,903,794Power amplifier device with improved response speed20218,685,113'Foam type hair dying agent composition'20146,802,872'Hairdye composition containing metallic compound'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004Patents assigned to DONG SUNG PHARMACEUTICALS CO L (1)· patent assignee history
2004Based in Asan-si, KR· patent location history
2014Patents assigned to DONG SUNG PHARM CO LTD (1)· patent assignee history
2014Patents assigned to JO BONG-LIM (1)· patent assignee history
2014Patents assigned to MOON HYE-JIN (1)· patent assignee history
2014Based in Gyeonggi-do, KR· patent location history
2021Patents assigned to SAMSUNG ELECTRO MECH (2)· patent assignee history
2021Based in Suwon-si, KR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SAMSUNG ELECTRO MECH22021
DONG SUNG PHARM CO LTD12014
DONG SUNG PHARMACEUTICALS CO L12004
JO BONG-LIMself12014
MOON HYE-JIN12014
Locations
LocationPatentsSpan
Suwon-si, KR22021
Gyeonggi-do, KR12014
Asan-si, KR12004