Assignee
SHANGHAI HUACHANG ENV PROT CO LTD
CN·3 granted patents·0 citations·filing 2017–2019
Top patents by PatentIndex Score
3 records- 0147US12017939B2Oily sewage pretreatment method and device without air floatationSHANGHAI HUACHANG ENV PROT CO LTD·Filed 2019·Granted Jun 25, 2024·0 cites·10 claims
- 0237US12017937B2Rotational flow rotation deoiling method and device for oil-based mud rock debrisSHANGHAI HUACHANG ENV PROT CO LTD·Filed 2018·Granted Jun 25, 2024·0 cites·9 claims
- 0335US11772091B2Method and apparatus for treating, sorting and recycling oil-containing discharged catalystSHANGHAI HUACHANG ENV PROT CO LTD·Filed 2017·Granted Oct 3, 2023·0 cites·10 claims
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