Inventor · disambiguated record
Guofang Cao
Also filed as: CAO GUOFANG
8 granted patents·11 pending applications·133 citations·filing 2004–2009
87Inventor score
Files withCAO GUOFANG17
Top patents by PatentIndex Score
19 records- 0186US7614981B2Weight selection system for fitness training equipmentCAO GUOFANG·Filed 2007·Granted Nov 10, 2009·35 cites·5 claims
- 0280US7211030B1Exercise machine having full weight or half weight selection mechanismCAO GUOFANG·Filed 2006·Granted May 1, 2007·20 cites·5 claims
- 0379USD566207SWeight plateCAO GUOFANG·Filed 2006·Granted Apr 8, 2008·27 cites·1 claims
- 0479US7131938B2Apparatus for weight heads assembly used on dumbbellsCAO GUOFANG·Filed 2005·Granted Nov 7, 2006·20 cites·1 claims
- 0570US7819786B1Dumbbell assemblyCAO GUOFANG·Filed 2009·Granted Oct 26, 2010·9 cites·3 claims
- 0670US7341545B2Torque releasing mechanism for fitness training equipmentCAO GUOFANG·Filed 2004·Granted Mar 11, 2008·20 cites·2 claims
- 0751US2009270233A1Dumbbell Handle Assembly and Method of ProductionCAO GUOFANG·Filed 2008·Application pending·0 cites
- 0850US7140407B2Configurations and designs for stump grinding teeth and corresponding holding bracketsCAO GUOFANG·Filed 2004·Granted Nov 28, 2006·0 cites·1 claims
- 0949US2005166996A1Type of carbide tip for tree stump grinding and cutting toothFiled 2004·Application pending·0 cites
- 1049US2005173023A1Configurations and designs for stump grinding teeth and corresponding holdingFiled 2004·Application pending·0 cites
- 1148US2008214368A1Dumbbell Head Impact Protection StructureCAO GUOFANG·Filed 2007·Application pending·0 cites
- 1247US2007243976A1Exercise Machine Having Safety Feature On The Weight Selection PinCAO GUOFANG·Filed 2006·Application pending·0 cites
- 1347US2007249475A1Fixed Weight Dumbbell AssemblyCAO GUOFANG·Filed 2006·Application pending·0 cites
- 1446US2006073949A1Protective shield for weight plate and lifting barCAO GUOFANG·Filed 2004·Application pending·0 cites
- 1545US2007004569A1Weight plates stacking system for fitness training equipmentCAO GUOFANG·Filed 2005·Application pending·0 cites
- 1644US2006075910A1Method of producing logos or color codes for weight plates and weight headsCAO GUOFANG·Filed 2004·Application pending·0 cites
- 1744US2006172070A1Method of producing logos or color codes for weight plates and weight headsCAO GUOFANG·Filed 2005·Application pending·0 cites
- 1838US2005217756A1Disposable tree stump cutting tip and assemblyCAO GUOFANG·Filed 2004·Application pending·0 cites
- 1932USD545329SCarbide tip for grinding teethCAO GUOFANG·Filed 2005·Granted Jun 26, 2007·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →