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

Dongke Zhao

WC Wanhua Chemical Group Co.: 1 patents #5 of 64Top 8%
WC Wanhua Chemical (Ningbo) Co.: 1 patents #2 of 47Top 5%
Overall (2025): #400,398 of 469,880Top 90%
1
Patents 2025

Issued Patents 2025

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12226761 Catalyst for preparing phosgene and preparation method therefor, and method for preparation of phosgene and comprehensive utilization of energy thereof Chao Dong, Yujie Zhou, Chaoqun Li, Fang Wen, Wenbo Wang +4 more 2025-02-18