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Inventor
ZHOU CHANGQING
CN
2 patents
⚠️ This page may combine multiple inventors who share the name “ZHOU CHANGQING”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BEIJING HELEE BIO ENERGY LTD
1 patent
US9975085B2
May 22, 2018
Container-type biogas purification film method purification system
BEIJING HELEE BIO ENERGY LTD
2 citations
62
CHINA NAT INST STANDARDIZATION
1 patent
US12159107B2
Dec 3, 2024
Method for automatically identifying word repetition errors
CHINA NAT INST STANDARDIZATION
0 citations
44