Ferranti Limited
101Patents
0Active
101Granted
42Portfolio score
Filing activity: Jan 29, 1973 → Apr 18, 1983
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4160455A | Heater for heating fluid in a body cavity | Human Necessities | 103 | Expired |
| US3942245A | Related to the manufacture of lead frames and the mounting of semiconductor devices thereon | Emerging Cross-Sectional Technologies | 93 | Expired |
| US4118109A | Optical apparatus for controlling the direction of a beam of optical radiation | Physics | 66 | Expired |
| US4237537A | Price display setting arrangements | Physics | 58 | Expired |
| US4224545A | Speed control | Electricity | 39 | Expired |
| US4079252A | Photoelectric grating displacement measuring apparatus | Physics | 32 | Expired |
| US4524347A | Position encoder | Physics | 26 | Expired |
| US4339172A | Connector having a single segmented deformable grip member for optical cables | Physics | 24 | Expired |
| US4201898A | Inertia switches | Electricity | 22 | Expired |
| US4201432A | Electric connectors | Electricity | 21 | Expired |
| US4079509A | Method of manufacturing semi-conductor devices | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4217787A | Gyroscopic apparatus | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4172666A | Inspection apparatus | Physics | 18 | Expired |
| US3952731A | Cardiac monitoring apparatus | Human Necessities | 18 | Expired |
| US4022969A | Apparatus for signalling the position of a point on a surface | Physics | 17 | Expired |
| US3931922A | Apparatus for mounting semiconductor devices | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4187551A | Apparatus for writing data in unique order into and retrieving same from memory | Physics | 15 | Expired |
| US4118012A | Load transfer | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4023660A | Follow-up servo systems for clutches | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4106051A | Semiconductor devices | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4288141A | Insulation displacement contact for an electrical connector | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4130880A | Data storage system for addressing data stored in adjacent word locations | Physics | 13 | Expired |
| US4150767A | Liquid blending and dispensing apparatus | Performing Operations; Transporting | 13 | Expired |
| US4181863A | Photodiode circuit arrangements | Electricity | 13 | Expired |
| US4161742A | Semiconductor devices with matched resistor portions | Emerging Cross-Sectional Technologies | 13 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.