Chang Whan Chi

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Columbia, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Preparation of binderless 3A adsorbents
- Patent number 4,424,144
- Issue date Jan 3, 1984
- W. R. Grace & Co.
- James N. Pryor
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Binderless zeolite extrudates and method of producing
- Patent number 4,381,255
- Issue date Apr 26, 1983
- W. R. Grace & Co.
- Richard J. Nozemack
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Forming and crystallization process for molecular sieve manufacture
- Patent number 4,058,586
- Issue date Nov 15, 1977
- W. R. Grace & Co.
- Chang Whan Chi
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Zeolite catalyst for dilute acid gas treatment via claus reaction
- Patent number 3,953,587
- Issue date Apr 27, 1976
- W. R. Grace & Co.
- Hanju Lee
- C01 - INORGANIC CHEMISTRY