Individual holder
CHANG JAMES L
US·3 granted patents·1 pending application·29 citations·filing 1987–2008
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0170US4844969AOrthopedic bed structureCHANG JAMES L·Filed 1987·Granted Jul 4, 1989·17 cites·13 claims
- 0261US7631941B2Apparatus for supporting a person and method of forming thereofCHANG JAMES L·Filed 2007·Granted Dec 15, 2009·6 cites·27 claims
- 0361US7484811B2Apparatus for supporting a person and method of forming thereofCHANG JAMES L·Filed 2006·Granted Feb 3, 2009·6 cites·29 claims
- 0442US2009191380A1Apparatus for supporting a person and method of forming thereofCHANG JAMES L·Filed 2008·Application pending·0 cites
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