Individual holder
STIFTER FRANCIS J
7 granted patents·158 citations·filing 1976–1989
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
7 records- 0192US4259705ACombination surge suppressor filterSTIFTER FRANCIS J·Filed 1979·Granted Mar 31, 1981·65 cites·8 claims
- 0278US4999729ASatellite receiver protection apparatusSTIFTER FRANCIS J·Filed 1989·Granted Mar 12, 1991·39 cites·20 claims
- 0373US4553039AUninterruptible power supplySTIFTER FRANCIS J·Filed 1983·Granted Nov 12, 1985·24 cites·21 claims
- 0472US4127847AMonitoring system for aircraft master switchSTIFTER FRANCIS J·Filed 1977·Granted Nov 28, 1978·20 cites·9 claims
- 0541US4228494AConstant current sourceSTIFTER FRANCIS J·Filed 1978·Granted Oct 14, 1980·5 cites·9 claims
- 0637US4075560AExpanded scale electrical measuring circuitSTIFTER FRANCIS J·Filed 1976·Granted Feb 21, 1978·4 cites·9 claims
- 0729US4636746AFrequency lock systemSTIFTER FRANCIS J·Filed 1985·Granted Jan 13, 1987·1 cites·20 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →