Wun Ten Tai

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Palo Hills, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Treatment of aqueous systems using a chemically modified tannin
- Patent number 5,977,287
- Issue date Nov 2, 1999
- BetzDearborn Inc.
- David Brian Mitchell
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Treatment of aqueous systems using a chemically modified tannin
- Patent number 5,843,337
- Issue date Dec 1, 1998
- BetzDearborn Inc.
- David Brian Mitchell
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Treatment of Aqueous systems using a chemically modified tannin
- Patent number 5,830,315
- Issue date Nov 3, 1998
- BetzDearborn Inc.
- David Brian Mitchell
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Paint spray booth organic detackification treatment
- Patent number 5,298,186
- Issue date Mar 29, 1994
- W. R. Grace & Co.-Conn.
- David B. Mitchell
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method of dispersing iron
- Patent number 5,183,574
- Issue date Feb 2, 1993
- W. R. Grace & Co.-Conn.
- Chih M. Hwa
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE