Inventor · disambiguated record
Chang J. Song
Also filed as: SONG CHANG J · SONG CHANG JUNE
12 granted patents·5 pending applications·260 citations·filing 1987–2002
92Inventor score
Top patents by PatentIndex Score
17 records- 0189US5617751AKey fob and attachmentFiled 1996·Granted Apr 8, 1997·68 cites·17 claims
- 0280US5181927AFrame lock mechanism for a key lightSONG CHANG J·Filed 1991·Granted Jan 26, 1993·50 cites·13 claims
- 0376US4787016ALight attachable to a keySONG CHANG J·Filed 1987·Granted Nov 22, 1988·38 cites·15 claims
- 0460US5365760AKey security deviceSONG CHANG J·Filed 1994·Granted Nov 22, 1994·27 cites·7 claims
- 0557USD383600SKey ringSONG CHANG JUNE·Filed 1996·Granted Sep 16, 1997·10 cites·1 claims
- 0655USD304130SAttachable key lightSONG CHANG J·Filed 1987·Granted Oct 24, 1989·7 cites·1 claims
- 0754US5768924AKey clipFiled 1997·Granted Jun 23, 1998·23 cites·11 claims
- 0854US5501089AKey fob and attachmentFiled 1994·Granted Mar 26, 1996·14 cites·16 claims
- 0949USD383599SKey ringSONG CHANG JUNE·Filed 1996·Granted Sep 16, 1997·7 cites·1 claims
- 1047USD371999SKey ringSONG CHANG J·Filed 1995·Granted Jul 23, 1996·6 cites·1 claims
- 1143US2002127974A1Shielded speaker for wireless telephonesFiled 2001·Application pending·0 cites
- 1243US2002187805A1Wireless telephone with illuminationFiled 2001·Application pending·0 cites
- 1340US2002052216A1Wireless telephone with acoustic speaker couplingFiled 2001·Application pending·0 cites
- 1438USD371903SKey ringSONG CHANG J·Filed 1995·Granted Jul 23, 1996·3 cites·1 claims
- 1534US2003034923A1Antenna construction for wireless telephonesFiled 2002·Application pending·0 cites
- 1633US5528916ADevice for securing objects on a ringFiled 1993·Granted Jun 25, 1996·7 cites·7 claims
- 1733US2002025827A1Extendable antenna for wireless telephonesFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →