Nixdorf Computer AG
126Patents
0Active
126Granted
42Portfolio score
Filing activity: Apr 22, 1974 → Jul 5, 1990
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4524448A | Variable delay unit for data synchronizer using phase-sensitive counter to vary the delay | Electricity | 61 | Expired |
| US4743746A | Receiving unit for a data card containing an electronic circuit | Electricity | 51 | Expired |
| US4352133A | Magnetic disc memory | Physics | 36 | Expired |
| US4689654A | Logic array chip | Electricity | 34 | Expired |
| US4875418A | Set of components for constructing furniture pieces | Human Necessities | 30 | Expired |
| US4919412A | Control system for a draw-off system for sheet material | Performing Operations; Transporting | 26 | Expired |
| US4514743A | Ink jet filtered-chamber print head | Performing Operations; Transporting | 26 | Expired |
| US4354654A | Swivel mounting unit | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4407593A | Arrangement for monitoring the operation of the ink ribbon of an ink-ribbon magazine | Performing Operations; Transporting | 25 | Expired |
| US4829420A | Process and circuit arrangement for addressing the memories of a plurality of data processing units in a multiple line system | Physics | 25 | Expired |
| US5033887A | Process for the production of information relative to the type of a printing head | Performing Operations; Transporting | 23 | Expired |
| US3951252A | Electromechanical writing device | Performing Operations; Transporting | 23 | Expired |
| US4935642A | Circuit for distributing electrical power to several functional units | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4789287A | Through bolt connection for unilaterally accessible locations | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US4213715A | Ink ribbon cartridge having a replaceable ribbon magazine | Performing Operations; Transporting | 23 | Expired |
| US4443848A | Two-level priority circuit | Physics | 22 | Expired |
| US4310880A | High-speed synchronous computer using pipelined registers and a two-level fixed priority circuit | Physics | 22 | Expired |
| US4341100A | Portable certificate magazine | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4684794A | Transport device for card-like recording medium | Physics | 21 | Expired |
| US4158456A | Device for separating documents, cards and the like, especially paper money bills | Performing Operations; Transporting | 20 | Expired |
| US4836784A | Unit for display of information on a reading device for the blind | Physics | 20 | Expired |
| US4065713A | Voltage stabilizer | Electricity | 19 | Expired |
| US4488146A | Information input and output unit for data processing equipment | Physics | 19 | Expired |
| US3970944A | Pulse suppressing circuit arrangements and equipment incorporating the same | Electricity | 19 | Expired |
| US4334732A | Electrical connector unit | Electricity | 15 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.