Inventor · disambiguated record
Kil-Wan Chang
Also filed as: CHANG KIL WAN
18 granted patents·6 pending applications·29 citations·filing 2000–2022
88Inventor score
Top patents by PatentIndex Score
24 records- 0187US7959894B2Flaky alpha-alumina crystal and a method of its preparationKOREA RES INST CHEM TECH·Filed 2006·Granted Jun 14, 2011·10 cites·7 claims
- 0271US9629796B2Colored glossy pigment using vegetable type natural dye and method for preparing sameCQV CO LTD·Filed 2014·Granted Apr 25, 2017·1 cites·19 claims
- 0367US6899757B2Method for preparing a pearlescent pigment by coating metal oxides on the synthesized micaSKY CHEMICAL CO LTD·Filed 2000·Granted May 31, 2005·18 cites·11 claims
- 0463US2024084145A1Multi-color pearlescent pigment with improved sparkling effect and preparation method thereforCQV CO LTD·Filed 2022·Application pending·0 cites
- 0561US11118060B2Composite white pigmentCQV CO LTD·Filed 2018·Granted Sep 14, 2021·0 cites·12 claims
- 0661US2024052170A1Effect pigment having near-infrared reflection function, and paint and panel using sameCQV CO LTD·Filed 2022·Application pending·0 cites
- 0760US11207264B2Cosmetics composition having improved water absorbability and oil absorbabilityCQV CO LTD·Filed 2019·Granted Dec 28, 2021·0 cites·13 claims
- 0860US2023077579A1Anti-pollution composite powder having uv- and fine dust-blocking function and cosmetic composition comprising sameCQV CO LTD·Filed 2021·Application pending·0 cites
- 0958US10285918B2Cosmetic compositionCQV CO LTD·Filed 2014·Granted May 14, 2019·0 cites·10 claims
- 1058US2024018360A1Pigment composition comprising plate-shaped aluminum having excellent explosion stability, and method for preparing sameCQV CO LTD·Filed 2021·Application pending·0 cites
- 1153US10519317B2Gold pigment with high color strengthCQV CO LTD·Filed 2016·Granted Dec 31, 2019·0 cites·10 claims
- 1252US2010089291A1Flake pigment and preparation method thereof and cosmetic using the sameCQV CO LTD·Filed 2006·Application pending·0 cites
- 1351US9862839B2Pigment having excellent electrical conductivity and corrosion resistance and method for preparing sameCQV CO LTD·Filed 2014·Granted Jan 9, 2018·0 cites·7 claims
- 1450US11370923B2Black pearlescent pigment using natural charcoal and production method thereofCQV CO LTD·Filed 2017·Granted Jun 28, 2022·0 cites·8 claims
- 1548US10646423B2Cosmetic product having excellent UV-blocking effect and manufacturing method thereofCQV CO LTD·Filed 2016·Granted May 12, 2020·0 cites·4 claims
- 1647US9212282B2Interference pigment with high color intensity and method of manufacturing the sameCQV CO LTD·Filed 2013·Granted Dec 15, 2015·0 cites·7 claims
- 1743US11407900B2Pearlescent pigment for security purposes including organic or inorganic fluorescent materialCQV CO LTD·Filed 2018·Granted Aug 9, 2022·0 cites·7 claims
- 1843US10836912B2Glossy pigment having hollow structure and method for producing sameCQV CO LTD·Filed 2016·Granted Nov 17, 2020·0 cites·10 claims
- 1941US10259943B2Method for manufacturing plate alpha-alumina pearlescent pigments and nano-metal coating pearlescent pigments with large aspect ratioCQV CO LTD·Filed 2014·Granted Apr 16, 2019·0 cites·11 claims
- 2041US9758677B2Plate-like aluminum oxide and preparation method thereforCQV CO LTD·Filed 2015·Granted Sep 12, 2017·0 cites·17 claims
- 2140US2016280927A1Iron oxide based black glossy pigment and method for preparing sameCQV CO LTD·Filed 2014·Application pending·0 cites
- 2237US8808447B2Pigment paint for an exterior material having good weather resistance and method for manufacturing sameJEONG JAE-IL·Filed 2012·Granted Aug 19, 2014·0 cites·7 claims
- 2335US8900660B2Silver coating pigment, and method for producing sameHEO DONG-MIN·Filed 2012·Granted Dec 2, 2014·0 cites·11 claims
- 2433US9309411B2Nacreous pigment with high chroma and multiple colors and method of preparing the sameJEONG JAE-IL·Filed 2011·Granted Apr 12, 2016·0 cites·8 claims
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