Inventor · disambiguated record
Hansan Ma
Also filed as: MA HANSAN
6 granted patents·2 pending applications·231 citations·filing 1981–2005
87Inventor score
Top patents by PatentIndex Score
8 records- 0192USD322105SBallTONKA CORP·Filed 1989·Granted Dec 3, 1991·44 cites·1 claims
- 0290US4573332APortable security boxIDESIGN INC·Filed 1984·Granted Mar 4, 1986·76 cites·6 claims
- 0382USD274070SBall toyMILTON BRADLEY INT INC·Filed 1982·Granted May 29, 1984·19 cites·1 claims
- 0478US4919422ACurve ballTONKA CORP·Filed 1989·Granted Apr 24, 1990·57 cites·13 claims
- 0561USD271897SStacking toyMILTON BRADLEY INT INC·Filed 1981·Granted Dec 20, 1983·8 cites·1 claims
- 0651US5253866ABall with a passive sound deviceTONKA CORP·Filed 1991·Granted Oct 19, 1993·27 cites·19 claims
- 0745US2006105866A1Football with a modified surface conferring altered aerodynamic propertiesMA HANSAN·Filed 2004·Application pending·0 cites
- 0845US2007117662A1Dimpled soccer ballMA HANSAN·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →