William S. Frazee

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Spring, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Cored round trilobe shaped catalyst for producing maleic anhydride
- Patent number 11,547,989
- Issue date Jan 10, 2023
- Huntsman Petrochemical LLC
- Chunli Zhao
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
CORED ROUND TRILOBE SHAPED CATALYST FOR PRODUCING MALEIC ANHYDRIDE
- Publication number 20210031177
- Publication date Feb 4, 2021
- Huntsman Petrochemical LLC
- Chunli Zhao
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
VPO CATALYST WITH LOW VANADIUM OXIDATION STATE FOR MALEIC ANDHYDRID...
- Publication number 20130217897
- Publication date Aug 22, 2013
- Huntsman Petrochemical LLC
- Zhiping Shan
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL