Guofang Cao

Person

Diamond Bar, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Dumbbell assembly
- Patent number 7,819,786
- Issue date Oct 26, 2010
- Guofang Cao
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Weight selection system for fitness training equipment
- Patent number 7,614,981
- Issue date Nov 10, 2009
- Guofang Cao
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Weight plate
- Patent number D566207
- Issue date Apr 8, 2008
- Guofang Cao
- D21 - Games, toys, and sports goods
Information Patent Grant
Torque releasing mechanism for fitness training equipment
- Patent number 7,341,545
- Issue date Mar 11, 2008
- Guofang Cao
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Carbide tip for grinding teeth
- Patent number D545329
- Issue date Jun 26, 2007
- Guofang Cao
- D15 - Machines not elsewhere specified
Information Patent Grant
Exercise machine having full weight or half weight selection mechanism
- Patent number 7,211,030
- Issue date May 1, 2007
- Guofang Cao
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Configurations and designs for stump grinding teeth and correspondi...
- Patent number 7,140,407
- Issue date Nov 28, 2006
- Guofang Cao
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Apparatus for weight heads assembly used on dumbbells
- Patent number 7,131,938
- Issue date Nov 7, 2006
- Guofang Cao
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Dumbbell Assembly
- Publication number 20100279829
- Publication date Nov 4, 2010
- Guofang Cao
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Dumbbell Handle Assembly and Method of Production
- Publication number 20090270233
- Publication date Oct 29, 2009
- Guofang Cao
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Weight Selection System For Fitness Training Equipment
- Publication number 20080305936
- Publication date Dec 11, 2008
- Guofang Cao
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Dumbbell Head Impact Protection Structure
- Publication number 20080214368
- Publication date Sep 4, 2008
- Guofang Cao
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Fixed Weight Dumbbell Assembly
- Publication number 20070249475
- Publication date Oct 25, 2007
- Guofang Cao
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Exercise Machine Having Safety Feature On The Weight Selection Pin
- Publication number 20070243976
- Publication date Oct 18, 2007
- Guofang Cao
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Weight plates stacking system for fitness training equipment
- Publication number 20070004569
- Publication date Jan 4, 2007
- Guofang Cao
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Apparatus for weight heads assembly used on dumbbells
- Publication number 20060172871
- Publication date Aug 3, 2006
- Guofang Cao
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Method of producing logos or color codes for weight plates and weig...
- Publication number 20060172070
- Publication date Aug 3, 2006
- Guofang Cao
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Method of producing logos or color codes for weight plates and weig...
- Publication number 20060075910
- Publication date Apr 13, 2006
- Guofang Cao
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Protective shield for weight plate and lifting bar
- Publication number 20060073949
- Publication date Apr 6, 2006
- Guofang Cao
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Torque releasing mechanism for fitness training equipment
- Publication number 20050266968
- Publication date Dec 1, 2005
- Guofang Cao
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Disposable tree stump cutting tip and assembly
- Publication number 20050217756
- Publication date Oct 6, 2005
- Guofang Cao
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Configurations and designs for stump grinding teeth and correspondi...
- Publication number 20050194064
- Publication date Sep 8, 2005
- Guofang Cao
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Configurations and designs for stump grinding teeth and correspondi...
- Publication number 20050173023
- Publication date Aug 11, 2005
- Guofang Cao
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
Type of carbide tip for tree stump grinding and cutting tooth
- Publication number 20050166996
- Publication date Aug 4, 2005
- Guofang Cao
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING

Guofang Cao

Person

Patents Grantslast 30 patents

Dumbbell assembly

Weight selection system for fitness training equipment

Weight plate

Torque releasing mechanism for fitness training equipment

Carbide tip for grinding teeth

Exercise machine having full weight or half weight selection mechanism

Configurations and designs for stump grinding teeth and correspondi...

Apparatus for weight heads assembly used on dumbbells

Patents Applicationslast 30 patents

Dumbbell Assembly

Dumbbell Handle Assembly and Method of Production

Weight Selection System For Fitness Training Equipment

Dumbbell Head Impact Protection Structure

Fixed Weight Dumbbell Assembly

Exercise Machine Having Safety Feature On The Weight Selection Pin

Weight plates stacking system for fitness training equipment

Apparatus for weight heads assembly used on dumbbells

Method of producing logos or color codes for weight plates and weig...

Method of producing logos or color codes for weight plates and weig...

Protective shield for weight plate and lifting bar

Torque releasing mechanism for fitness training equipment

Disposable tree stump cutting tip and assembly

Configurations and designs for stump grinding teeth and correspondi...

Configurations and designs for stump grinding teeth and correspondi...

Type of carbide tip for tree stump grinding and cutting tooth