Inventor · disambiguated record
Francis R. Trumble
Also filed as: TRUMBLE FRANCIS R · TRUMBLE FRANCIS ROBERT
4 granted patents·112 citations·filing 1984–1996
78Inventor score
Top patents by PatentIndex Score
4 records- 0188US6131386ASingle mode resonant cavityCENTRAL RESEARCH LAB LTD·Filed 1996·Granted Oct 17, 2000·67 cites·13 claims
- 0271US4680591AHelical antenna array with resonant cavity and impedance matching meansEMI LTD·Filed 1984·Granted Jul 14, 1987·29 cites·5 claims
- 0346US4907012AAntennaEMI PLC THORN·Filed 1987·Granted Mar 6, 1990·14 cites·8 claims
- 0427US5070278ADischarge tube arrangementEMI PLC THORN·Filed 1990·Granted Dec 3, 1991·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →