PRINTRONIX, LLC
96Patents
13Active
96Granted
53Portfolio score
Filing activity: Aug 8, 1974 → Feb 27, 2023 · 8 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6899476B1 | RFID tag, antenna, and printer system | Physics | 83 | Expired |
| US3941051A | Printer system | Performing Operations; Transporting | 66 | Expired |
| US6082914A | Thermal printer and drive system for controlling print ribbon velocity and tension | Performing Operations; Transporting | 56 | Expired |
| US6929412B1 | RFID tag, antenna, and printer system | Physics | 48 | Expired |
| US6535299B1 | Bar code verification and printing system | Physics | 48 | Expired |
| US4177731A | Printer system ribbon drive having constant ribbon speed and tension | Performing Operations; Transporting | 46 | Expired |
| US4687359A | Color printer | Performing Operations; Transporting | 36 | Expired |
| US6840689B2 | Thermal printer with improved transport, drive, and remote controls | Performing Operations; Transporting | 35 | Expired |
| US7114655B2 | EPC data manager | Physics | 34 | Expired |
| US5366303A | Printer ribbon motor controller | Performing Operations; Transporting | 33 | Expired |
| US4044668A | Print hammer mechanism | Performing Operations; Transporting | 32 | Expired |
| US4359289A | Counterbalanced bidirectional shuttle drive having linear motor | Electricity | 30 | Expired |
| US7114654B2 | RFID encoder and verifier | Physics | 28 | Expired |
| US7066667B2 | RFID tag and printer system | Physics | 28 | Expired |
| US4507796A | Electronic apparatus having low radio frequency interference from system clock signal | Electricity | 25 | Expired |
| US6089768A | Print ribbon feeder and detection system | Performing Operations; Transporting | 24 | Expired |
| US4463300A | Linear motor digital servo control | Performing Operations; Transporting | 23 | Expired |
| US6997627B2 | Label printer read after print correlation apparatus | Performing Operations; Transporting | 21 | Expired |
| US7342499B2 | Multi-band RFID encoder | Electricity | 20 | Active |
| US4180766A | Reciprocating linear drive mechanism | Electricity | 16 | Expired |
| US7037009B2 | RFID tag, antenna, and printer system | Physics | 16 | Expired |
| US7891892B2 | Printer read after print correlation method | Performing Operations; Transporting | 16 | Active |
| US4033255A | Print hammer actuator for dot matrix printers | Performing Operations; Transporting | 16 | Expired |
| US7261479B2 | RFID tag, antenna, and printer system | Physics | 15 | Expired |
| US4415286A | Variable print density encoder system | Physics | 14 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.