Prosecution Insights
Last updated: April 19, 2026

N E Chemcat Corporation

2 pending office actions

Portfolio Summary

2
Total Pending OAs
0
Final Rejections
2
Non-Final OAs

Pending Office Actions

App #TitleExaminerArt UnitStatusFiled
18263646 GASOLINE ENGINE EXHAUST GAS PURIFYING CATALYST FILTER CALDERON, DAVID ANDREW 1742 Non-Final OA Jul 31, 2023
17440471 SELECTIVE REDUCING CATALYST FOR DIESELS AND DIESEL EXHAUST GAS PURIFICATION APPARATUS ZHANG, KELING NMN 1732 Non-Final OA Sep 17, 2021

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