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

Eui Jun Cha — 1 Patent

Samsung: 1 patents #50,112 of 75,807Top 70%
Seoul, KR: #25,289 of 39,741 inventorsTop 65%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Eui Jun Cha has been granted 1 US patent while listed as an inventor at Samsung. All of these patents were granted in 2025. Eui Jun Cha ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Eui Jun Cha in Seoul, KR.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12310004 Semiconductor device including element isolation film and method for fabricating the same Tae Jin Park, Gyul Go, Jun Soo Kim, Gyung Hyun Yoon, Hui-Jung Kim +1 more 2025-05-20