Individual holder
CHRISTENSEN JOHN J
US·3 granted patents·80 citations·filing 1990–1997
Individually held — no corporate assignee on record.
Technology mixG10K1
Top patents by PatentIndex Score
3 records- 0181US5072208AElectromechanical chaotic chiming mechanismCHRISTENSEN JOHN J·Filed 1990·Granted Dec 10, 1991·67 cites·7 claims
- 0251USD370183SIndoor chimesCHRISTENSEN JOHN J·Filed 1994·Granted May 28, 1996·7 cites·1 claims
- 0345USD407096STree top inspection video cameraCHRISTENSEN JOHN J·Filed 1997·Granted Mar 23, 1999·6 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →