Prosecution Insights
Last updated: April 19, 2026

Korea Zinc Co. Ltd.

3 pending office actions

Portfolio Summary

3
Total Pending OAs
1
Final Rejections
2
Non-Final OAs

Pending Office Actions

App #TitleExaminerArt UnitStatusFiled
18547566 METHOD FOR RECOVERY OF VALUABLE METALS FROM SPENT SECONDARY BATTERIES YANG, JIE 1734 Non-Final OA Aug 23, 2023
18547564 METHOD FOR RECOVERING IRON AND VALUABLE METALS FROM ELECTRIC ARC FURNACE DUST MCGUTHRY BANKS, TIMA MICHELE 1733 Final Rejection Aug 23, 2023
18547231 METHOD FOR PRODUCING MANGANESE(II) SULFATE MONOHYDRATE FROM BY-PRODUCT OF ZINC REFINING PROCESS ZHANG, KELING NMN 1732 Non-Final OA Aug 21, 2023

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