Paul C. Chieng

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Terre Haute, IN, US

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Patents Grantslast 30 patents

Information Patent Grant
Silica having high specific surface area and a narrow pore distribu...
- Patent number 5,861,110
- Issue date Jan 19, 1999
- Paul C. Chieng
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method of separating a peptide from a resin
- Patent number 5,200,507
- Issue date Apr 6, 1993
- Mallinckrodt Specialty Chemicals Company
- Paul C. Chieng
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of production of high purity silica and ammonium fluoride
- Patent number 5,165,907
- Issue date Nov 24, 1992
- IMCERA Group Inc.
- Paul C. Chieng
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Production of silica having high specific surface area
- Patent number 5,158,758
- Issue date Oct 27, 1992
- International Minerals & Chemical Corp.
- Paul C. Chieng
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method of production of high purity fusible silica
- Patent number 5,028,407
- Issue date Jul 2, 1991
- International Minerals & Chemical Corp.
- Paul C. Chieng
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method of production of high purity silica and ammonium fluoride
- Patent number 4,981,664
- Issue date Jan 1, 1991
- International Minerals & Chemical Corporation
- Paul C. Chieng
- C01 - INORGANIC CHEMISTRY