Ding Feng Shen

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Ashland, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Pumpably verifiable fluid fiber compositions
- Patent number 6,790,275
- Issue date Sep 14, 2004
- W. R. Grace & Co.-Conn.
- Michael B. Macklin
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Emulsified comb polymer and defoaming agent composition and method...
- Patent number 6,139,623
- Issue date Oct 31, 2000
- W. R. Grace & Co.-Conn.
- David Charles Darwin
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Corrosion inhibiting formulations with calcium nitrite
- Patent number 5,527,388
- Issue date Jun 18, 1996
- W. R. Grace & Co.-Conn.
- Neal S. Berke
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents

Information Patent Application
Viscosity modifying agents and water reducers
- Publication number 20040072939
- Publication date Apr 15, 2004
- Charles R. Cornman
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Pumpably verifiable fluid fiber compositions
- Publication number 20030056695
- Publication date Mar 27, 2003
- W.R. GRACE & CO.-CONN.
- Michael B. Macklin
- B28 - WORKING CEMENT, CLAY, OR STONE