Inventor
Du-Youn Ka
Inventor
Daejeon, KR
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Fprimary
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds16%
C08JWorking-up16%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry11%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients11%
C08LCompositions of macromolecular compounds11%
A61LMethods or apparatus for sterilising materials or objects in general5%
A63FCard, board, or roulette games5%
B82YSpecific uses or applications of nanostructures5%
G06FElectric digital data processing5%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes5%
PatentTitleYear
10,986,050Method and apparatus for providing in-game messenger service202110,130,931Super absorbent polymer and method of preparing the same20189,879,122'Super absorbent polymer and method of preparing the same'20189,669,384'Water-absorbing resin and preparing method thereof'20177,983,066'Passive matrix-addressable memory apparatus'2011Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2011Patents assigned to KOREA ADVANCED INST SCI & TECH (1)· patent assignee history
2011–2021Based in Seoul, KR· patent location history
2017–2018Patents assigned to SK GLOBAL CHEMICAL CO LTD (3)· patent assignee history
2017–2018Patents assigned to SK INNOVATION CO LTD (3)· patent assignee history
2017–2018Based in Daejeon, KR· patent location history
2021Patents assigned to SMILEGATE ENTERTAINMENT INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SK GLOBAL CHEMICAL CO LTD | 3 | 2017–2018 |
| SK INNOVATION CO LTD | 3 | 2017–2018 |
| KOREA ADVANCED INST SCI & TECH | 1 | 2011 |
| SMILEGATE ENTERTAINMENT INC | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Daejeon, KR | 3 | 2017–2018 |
| Seoul, KR | 2 | 2011–2021 |