Wenqi LUAN

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Hawthorn Woods, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Siloxane compositions and methods for reducing VOC and siloxane dust
- Patent number 10,232,588
- Issue date Mar 19, 2019
- United States Gypsum Company
- Yufeng Xu
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Lightweight, reduced density fire rated gypsum panels
- Patent number 9,623,586
- Issue date Apr 18, 2017
- United States Gypsum Company
- Qiang Yu
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method of making lightweight, reduced density fire rated gypsum panels
- Patent number 8,702,881
- Issue date Apr 22, 2014
- United States Gypsum Company
- Qiang Yu
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Lightweight, reduced density fire rated gypsum panels
- Patent number 8,323,785
- Issue date Dec 4, 2012
- United States Gypsum Company
- Qiang Yu
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method and apparatus for pressurized calcination of gypsum
- Patent number 7,815,889
- Issue date Oct 19, 2010
- United States Gypsum Company
- Wenqi Luan
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Activated carbon as mercury release control agent in gypsum calcina...
- Patent number 7,507,287
- Issue date Mar 24, 2009
- United States Gypsum Company
- Wenqi Luan
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents

Information Patent Application
SILOXANE COMPOSITIONS AND METHODS FOR REDUCING VOC AND SILOXANE DUST
- Publication number 20150306846
- Publication date Oct 29, 2015
- United States Gypsum Company
- Yufeng Xu
- B32 - LAYERED PRODUCTS
Information Patent Application
LIGHTWEIGHT, REDUCED DENSITY FIRE RATED GYPSUM PANELS
- Publication number 20140158273
- Publication date Jun 12, 2014
- United States Gypsum Company
- Qiang YU
- B32 - LAYERED PRODUCTS
Information Patent Application
METHOD OF MAKING LIGHTWEIGHT, REDUCED DENSITY FIRE RATED GYPSUM PANELS
- Publication number 20130068364
- Publication date Mar 21, 2013
- United States Gypsum Company
- Qiang YU
- B32 - LAYERED PRODUCTS
Information Patent Application
LIGHTWEIGHT, REDUCED DENSITY FIRE RATED GYPSUM PANELS
- Publication number 20120219785
- Publication date Aug 30, 2012
- United States Gypsum Company
- Qiang YU
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
Low Weight and Density Fire-Resistant Gypsum Panel
- Publication number 20110195241
- Publication date Aug 11, 2011
- United States Gypsum Company
- Qiang Yu
- B32 - LAYERED PRODUCTS
Information Patent Application
METHOD AND APPARATUS FOR PRESSURIZED CALCINATION OF GYPSUM
- Publication number 20090257946
- Publication date Oct 15, 2009
- Wenqi Luan
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES