Partial year: Data through Q3 2025 (Sept 30). Full-year totals not yet available.
HC

Heon Sik CHOI

KE Kemco: 3 patents #1 of 4Top 25%
KC Korea Zinc Co.: 3 patents #1 of 6Top 20%
📍 Ulsan, KR: #8 of 131 inventorsTop 7%
Overall (2025): #60,971 of 469,880Top 15%
3
Patents 2025

Issued Patents 2025

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12385108 All-in-one nickel recovering method for nickel hydroxide recovery from raw materials containing nickel Je Joong Lee 2025-08-12
12325894 All-in-one nickel recovering method for nickel metal recovery from raw materials containing nickel Je Joong Lee 2025-06-10
12258282 Method for producing nickel sulfate solution for secondary battery from nickel cathode Jae-Hoon Joo, Tae Kyung LEE 2025-03-25