FT

Francis R. Trumble

TP Thorn Emi Plc: 2 patents #25 of 135Top 20%
CL Central Research Laboratories Limited: 1 patents #24 of 66Top 40%
EM Emi: 1 patents #32 of 137Top 25%
Overall (All Time): #1,280,965 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6131386 Single mode resonant cavity 2000-10-17
5070278 Discharge tube arrangement Colin Seymour, Martin C. Steel 1991-12-03
4907012 Antenna 1990-03-06
4680591 Helical antenna array with resonant cavity and impedance matching means Walter J. Axford, Charles W. Turner 1987-07-14