Ing. C. Olivetti & C., S.p.A.
431Patents
0Active
431Granted
41Portfolio score
Filing activity: Nov 14, 1972 → Nov 19, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4755070A | Circuit for actuating electric motors, especially in an electronic typewriter | Physics | 673 | Expired |
| US5119115A | Thermal ink jet print head with removable ink cartridge | Performing Operations; Transporting | 194 | Expired |
| US4897651A | Key with selective symbol display and keyboard using such key | Electricity | 153 | Expired |
| US4372694A | Electronic pocket calculator | Physics | 134 | Expired |
| US4735394A | Arrangement for adjusting the inclination of a keyboard | Emerging Cross-Sectional Technologies | 129 | Expired |
| US4703332A | Ink jet print head and printer | Performing Operations; Transporting | 119 | Expired |
| US5414452A | Recognition of ink expiry in an ink jet printing head | Performing Operations; Transporting | 100 | Expired |
| US4051326A | Arrangement for the remote switching-on and initialization of a data terminal | Emerging Cross-Sectional Technologies | 91 | Expired |
| US5481645A | Portable computer with verbal annotations | Physics | 75 | Expired |
| US5289211A | Ink detecting device for a liquid-ink printing element | Performing Operations; Transporting | 74 | Expired |
| US3940745A | Data processing unit having a plurality of hardware circuits for processing data at different priority levels | Physics | 65 | Expired |
| US4546361A | Ink jet printing method and device | Performing Operations; Transporting | 64 | Expired |
| US5489932A | Ink container for an ink jet print head | Performing Operations; Transporting | 63 | Expired |
| US4268901A | Variable configuration accounting machine with automatic identification of the number and type of connected peripheral units | Physics | 62 | Expired |
| US4092719A | Autoadaptive working center for programmable automation | Emerging Cross-Sectional Technologies | 58 | Expired |
| US4010839A | Cartridge for a ribbon of a typewriter or like office machines | Performing Operations; Transporting | 55 | Expired |
| US4554590A | Device for positioning video display unit | Emerging Cross-Sectional Technologies | 51 | Expired |
| US4746937A | Control apparatus for an on-demand ink jet printing element | Performing Operations; Transporting | 47 | Expired |
| US4238807A | Non-impact printing device | Performing Operations; Transporting | 46 | Expired |
| US4743924A | Control circuit for an ink jet printing element and a method of dimensioning and manufacture relating thereto | Performing Operations; Transporting | 44 | Expired |
| US4695852A | Ink jet print head | Performing Operations; Transporting | 43 | Expired |
| US4000804A | Arrangement for transferring a ribbon from a feed spool to a take-up spool | Performing Operations; Transporting | 38 | Expired |
| US4432003A | Ink-jet printing device | Performing Operations; Transporting | 37 | Expired |
| US4441164A | Electronic teleprinting apparatus including a removable programmed EPROM | Physics | 36 | Expired |
| US4118771A | Numerical control system for machine tools | Physics | 36 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.