Inventor · disambiguated record
Bong Jun Chang
Also filed as: CHANG BONG JUN
10 granted patents·4 pending applications·22 citations·filing 2005–2022
82Inventor score
Files withKOREA RES INST CHEMICAL TECH9KOREA RES INST CHEM TECH2HYUN DAI HEAVY IND CO LTD1HYUNDAI MOTOR CO LTD1KOREA ELECTRO TECH RESEARCH INSTITUTE1
Top patents by PatentIndex Score
14 records- 0182US7449112B2Crosslinked polyvinyl alcohol-based polymer membrane and a process of its preparationKOREA RES INST CHEM TECH·Filed 2005·Granted Nov 11, 2008·16 cites·9 claims
- 0278US9511320B2Polyimide-based macromolecular compound and gas-separation asymmetrical hollow-fibre membrane comprising the sameKOREA RES INST CHEMICAL TECH·Filed 2015·Granted Dec 6, 2016·2 cites·5 claims
- 0378US7405312B2Manufacturing method of hexafluoropropylene oxide with high yieldKOREA RES INST CHEM TECH·Filed 2007·Granted Jul 29, 2008·2 cites·3 claims
- 0476US10434463B2Separation membrane for olefin separation and olefin separation method using the sameKOREA RES INST CHEMICAL TECH·Filed 2018·Granted Oct 8, 2019·1 cites·12 claims
- 0566US10561991B2Homogeneous anion-exchange composite membrane having excellent chemical resistance and method for producing the sameKOREA RES INST CHEMICAL TECH·Filed 2018·Granted Feb 18, 2020·0 cites·16 claims
- 0666US10543463B2Homogeneous cation-exchange composite membrane having excellent chemical resistance and method for producing the sameKOREA RES INST CHEMICAL TECH·Filed 2018·Granted Jan 28, 2020·0 cites·14 claims
- 0764US12420240B2Composite membrane comprising highly permeable gutter layer and method for preparing sameKOREA RES INST CHEMICAL TECH·Filed 2021·Granted Sep 23, 2025·0 cites·8 claims
- 0856US11851559B2BCDA-based semi-alicyclic homo- or co-polyimide membrane materials for gas separation and the preparation method thereofKOREA RES INST CHEMICAL TECH·Filed 2019·Granted Dec 26, 2023·0 cites·10 claims
- 0955US2024318025A1Fluorine-based polymer coating film, optical substrate comprising same, and method for manufacturing optical substrateKOREA RES INST CHEMICAL TECH·Filed 2021·Application pending·0 cites
- 1055US2024194372A1Insulating gas used for electrical insulation or arc extinguishing by replacing sf6 gas and electrical device using sameKOREA ELECTRO TECH RESEARCH INSTITUTE·Filed 2021·Application pending·0 cites
- 1155US2016116132A1Heat dissipating plate device for light emitting diode, head lamp for automobile and method for preparing the sameHYUNDAI MOTOR CO LTD·Filed 2014·Application pending·0 cites
- 1255US2024199780A1Fluorine-based polymer, fluorine-based polymer composition comprising same, and fluorine-based polymer membrane using sameKOREA RES INST CHEMICAL TECH·Filed 2022·Application pending·0 cites
- 1354US7806067B2Thrust fin for shipsHYUN DAI HEAVY IND CO LTD·Filed 2005·Granted Oct 5, 2010·1 cites·5 claims
- 1453US11684890B2Methane-selective mixed matrix membranes including nanoporous metal-organic framework materials to which a methane-selective functional group is introduced, the use thereof, and a method of preparing the sameKOREA RES INST CHEMICAL TECH·Filed 2020·Granted Jun 27, 2023·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →