Inventor

HEPPINSTALL ROY

GB9 patents

⚠️ This page may combine multiple inventors who share the name “HEPPINSTALL ROY”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

EEV LTD

4 patents

US5281923AJan 25, 1994

Amplifying arrangements which modulate an electron beam

EEV LTD7 citations72

US5684364ANov 4, 1997

Electron beam tube collector having ceramic shielding means

EEV LTD17 citations70

US5283534AFeb 1, 1994

High frequency amplifying apparatus with a collector which has a periodic amplitude variable longitudinal magnetic field therein

EEV LTD9 citations70

US5239272AAug 24, 1993

Electron beam tube arrangements having primary and secondary output cavities

EEV LTD12 citations68

ENGLISH ELECTRIC VALVE CO LTD

3 patents

US4099133AJul 4, 1978

Klystron amplifiers

ENGLISH ELECTRIC VALVE CO LTD6 citations61

US4820996AApr 11, 1989

Amplifying arrangements

ENGLISH ELECTRIC VALVE CO LTD2 citations58

US5691667ANov 25, 1997

RF radiation absorbing material disposed between the cathode and anode of an electron beam tube

ENGLISH ELECTRIC VALVE CO LTD6 citations55

BRITISH BROADCASTING CORP

1 patent

US4733192AMar 22, 1988

Amplifying arrangements including a klystron having a power transfer characteristic which is substantially the same over its entire passband

BRITISH BROADCASTING CORP8 citations69

E2V TECH UK LTD

1 patent

US7202605B2Apr 10, 2007

Electron beam tube apparatus having a common output combining cavity

E2V TECH UK LTD4 citations60