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Inventor

Weichi SANG

Inventor
CN

Overview

2→
Patents
2025–2026
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B01Dprimary
B01DSeparation33%
C02FTreatment of water, waste water, sewage, or sludge33%
C07CAcyclic or carbocyclic compounds17%
Y02PClimate change mitigation technologies in the production or processing of goods17%
PatentTitleYear
12,540,084Deep purification device and method for Methanol-to-Olefin washing water202612,466,753Fluidized bed separation method and device for methanol-to-olefins quenched water2025

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2025–2026Patents assigned to SHANGHAI HUACHANG ENV PROT CO LTD (2)· patent assignee history
2025–2026Patents assigned to UNIV EAST CHINA SCIENCE & TECH (2)· patent assignee history
2025Patents assigned to SINOPEC GUANGZHOU ENG CO LTD (1)· patent assignee history
2025–2026Based in CN· patent location history
2026Patents assigned to EAST CHINA UNIV OF SCIENCE AND TECHNOLOGY Q (1)· patent assignee history
2026Patents assigned to SHAANXI PETROLEUM YANAN ENERGY CHEMICAL INDUSTRY LLC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHANGHAI HUACHANG ENV PROT CO LTD22025–2026
UNIV EAST CHINA SCIENCE & TECH22025–2026
EAST CHINA UNIV OF SCIENCE AND TECHNOLOGY Q12026
SHAANXI PETROLEUM YANAN ENERGY CHEMICAL INDUSTRY LLC12026
SINOPEC GUANGZHOU ENG CO LTD12025
Locations
LocationPatentsSpan
CN22025–2026