Li Yuansheng

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Fushun, CN

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Patents Grantslast 30 patents

Information Patent Grant
Hydrocracking of heavy oil and residuum with a dispersing-type cata...
- Patent number 6,004,454
- Issue date Dec 21, 1999
- China-Petro-Chemical Corporation
- Li Yuansheng
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Dispersing-type catalyst for hydrocracking of heavy oil and residuu...
- Patent number 5,948,721
- Issue date Sep 7, 1999
- China-Petro-Chemical Corporation
- Li Yuansheng
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL