Inventor
Kil-Yeong Choi
Inventor
Daejeon, KR
Overview
Patents· 26 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Gprimary
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds51%
C08JWorking-up9%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein9%
C07DHeterocyclic compounds7%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds5%
C08LCompositions of macromolecular compounds2%
C09KMaterials for miscellaneous applications, not provided for elsewhere2%
G01NInvestigating or analysing materials by determining their chemical or physical properties2%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices2%
H01BCables2%
PatentTitleYear
8,316,689'Quantitative evaluation of scratch-induced damages on polymeric and coating materials'20126,582,879'Reactive photo acid-generating agent and heat-resistant photoresist composition with polyamide precursor'20036,525,109'Process of preparing polycarbonates using microwave'20036,433,184'Polyamide-imide having head-to-tail backbone'20026,423,812'Process of preparing polycarbonates'20026,232,432'Process for the preparation of polycarbonates'20016,172,127'Preparation of polyimide foam'20016,162,893'Soluble polyimide resin having a dialkyl substituent for a liquid crystal alignment layer, the monomers and manufacturing methods thereof'20006,057,379'Method of preparing polyimide foam with excellent flexibility properties'20006,054,554'Soluble polyimide resin comprising polyalicyclic structure'20006,046,303'Soluble polyimide resin having alkoxy substituents and the preparation method thereof'20006,031,067'Soluble polyimide resin and process of preparation of the same'20006,018,055'Polyarylether containing N-substituted imide groups and process for producing the same'20006,013,760'Soluble polyimide resin for liquid crystal alignment layer and process of preparation of the same'20005,955,568'Process for preparing polyamideimide resins by direct polymerization'19995,919,942'Cyclohexane-1,2,4,5-diimide derivative and process for preparing the same'19995,824,766'Polyamideamic acid resin prepolymers, high heat resistant polyamideimide foams prepared therefrom, and processes for preparing them'19985,693,744'Amorphus polyamides having second order nonlinear optical property, and method for preparing them'19975,569,738'Melt processable etherimideimide/etherimide copolymer'19965,532,334'Process for preparing polyamideimide resins having high molecular weight'19965,521,276'Polyamideimide resins containing isophorone diamine structures'19965,489,616'Process for manufacturing phosphoric acid-type chelate resin as uranyl ion absorbents'19965,457,163'Phosphonic acid chelating resins for uranyl ion adsorption'19955,243,010'Aromatic polyamide containing pendant silyl groups'19935,241,037'Nadimide-terminated polyarylates and cured polyarylate resins'19935,212,277'Polyetherimideimides and a method for manufacturing them'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–2012Patents assigned to KOREA RES INST CHEM TECH (26)· patent assignee history
1993–1996Patents assigned to CHEIL IND INC (2)· patent assignee history
1993–2012Based in Daejeon, KR· patent location history
1993–1996Based in Taejeon, KR· patent location history
1996Based in Doryong-Dong, KR· patent location history
2000Based in Daejong, KR· patent location history
2002–2003Patents assigned to S OIL CORP (2)· patent assignee history
2012Patents assigned to CHOI KIL YEONG (1)· patent assignee history
2012Patents assigned to LEE JAE HEUNG (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KOREA RES INST CHEM TECH | 26 | 1993–2012 |
| CHEIL IND INC | 2 | 1993–1996 |
| S OIL CORP | 2 | 2002–2003 |
| CHOI KIL YEONGself | 1 | 2012 |
| LEE JAE HEUNG | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Daejeon, KR | 22 | 1993–2012 |
| Taejeon, KR | 2 | 1993–1996 |
| Daejong, KR | 1 | 2000 |
| Doryong-Dong, KR | 1 | 1996 |