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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DR

Do Choon Rha — 7 Patents

CICheil Industries: 7 patents #139 of 975Top 15%
Seoul, KR: #8,201 of 39,741 inventorsTop 25%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Do Choon Rha has been granted 7 US patents while listed as an inventor at Cheil Industries. The first was granted in 2009 and the most recent in July 2013. Do Choon Rha ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Do Choon Rha in Seoul, KR.

Patents per Year

Patents granted per year, 2009 to 2013Bar chart with a peak of 3 patents in 2011.peak 32009: 1 patents20092011: 3 patents20112012: 2 patents20122013: 1 patents2013

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
8476339 Method and apparatus for making composite solid surface article and composite solid surface article containing large particles Tae Hoon Kim, Mi Gon Kim, Gwang Ho Jung 2013-07-02
8211536 Composite solid surface article comprising at least one of randomly shaped fibers and powder particles Eung Seo Park, Jae Wook Juen 2012-07-03
8133575 Artificial stone and method of preparing the same Eung Seo Park, Jae Wook Juen 2012-03-13
8034446 Composite solid surface article with a backing and method of forming the same Jae Wook Juen, Eung Seo Park 2011-10-11
7923099 Composition for acrylic artificial stone Eung Seo Park 2011-04-12
7875668 Composite solid surface article containing loess Dong Choon Chung, Eung Seo Park 2011-01-25
7566492 Foamed stone article and method for preparing the same Eung Seo Park, Jae Wook Juen 2009-07-28