Wiston Lamshing

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Katy, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for purifying isophthalic acid prepared from metaxylene
- Patent number 6,140,534
- Issue date Oct 31, 2000
- HFM International, Inc.
- Fu-Ming Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Apparatus for preparing purified terephthalic acid
- Patent number 6,113,866
- Issue date Sep 5, 2000
- HFM International, Inc.
- Fu-Ming Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method and apparatus for preparing purified terephthalic acid and i...
- Patent number 6,054,610
- Issue date Apr 25, 2000
- HFM International, Inc.
- Fu-Ming Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method and apparatus for preparing purified terephthalic acid
- Patent number 6,013,835
- Issue date Jan 11, 2000
- HFM International, Inc.
- Fu-Ming Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method to reduce carboxybenzaldehyde isomers in terephthalic acid o...
- Patent number 5,929,274
- Issue date Jul 27, 1999
- HFM International, Inc.
- Wiston Lamshing
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method and apparatus for preparing purified terephthalic acid
- Patent number 5,840,968
- Issue date Nov 24, 1998
- HFM International, Inc.
- Fu-Ming Lee
- C07 - ORGANIC CHEMISTRY