Digital Equipment Corp
Digital EqActive Patents
0
Total Holdings
60
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| EP0864979A2 | Processor performance counter for sampling the execution fr… | Expired / Lapsed | 1998-03-03 | — | 3 | Details |
| EP0633694A1 | Segmented video on-demand system | Expired / Lapsed | 1994-07-07 | — | 9 | Details |
| EP0522743A1 | Combined hash table and CAM address recognition in a network | Expired / Lapsed | 1992-06-24 | — | 20 | Details |
| EP0479660A2 | Distributed configuration profile for computing system | Expired / Lapsed | 1991-09-30 | — | 26 | Details |
| CA2047426A1 | Product defect detection using thermal ratio analysis | Expired / Lapsed | 1991-07-19 | — | 48 | Details |
| EP0490465A2 | Methods and apparatus for accessing non-relational data fil… | Expired / Lapsed | 1991-07-04 | — | 39 | Details |
| EP0468831A2 | Bus protocol for write-back cache processor | Expired / Lapsed | 1991-06-26 | — | 38 | Details |
| EP0464563A2 | Encryption with selective disclosure of protocol identifiers | Expired / Lapsed | 1991-06-24 | — | 6 | Details |
| EP0465016A2 | Distributed multilevel computer security system and method | Expired / Lapsed | 1991-06-11 | — | 6 | Details |
| EP0447725A2 | Updating link state information in networks | Expired / Lapsed | 1990-12-28 | — | 4 | Details |
| EP0411805A2 | Bulk memory transfer during resync | Expired / Lapsed | 1990-07-20 | — | 16 | Details |
| EP0384339A2 | Broker for computer network server selection | Expired / Lapsed | 1990-02-19 | — | 33 | Details |
| EP0381471A2 | Method and apparatus for preprocessing multiple instruction… | Expired / Lapsed | 1990-01-31 | — | 21 | Details |
| EP0380857A2 | Arbitrating communication requests in a multi-processor com… | Expired / Lapsed | 1989-09-21 | — | 14 | Details |
| EP0365115A2 | Object identifier generator for distributed computer system | Expired / Lapsed | 1989-07-19 | — | 21 | Details |
| EP0380842A2 | Method and apparatus for interfacing a system control unit … | Expired / Lapsed | 1989-06-27 | — | 5 | Details |
| EP0358292A2 | Remote boot | Expired / Lapsed | 1989-03-03 | — | 24 | Details |
| EP0329415A2 | Expert system for security inspection of a digital computer… | Expired / Lapsed | 1989-02-15 | — | 2 | Details |
| EP0228954A1 | Telephone line interface option module | Expired / Lapsed | 1986-12-15 | — | 6 | Details |
| EP0480546A2 | Computer with virtual machine mode and multiple protection … | Expired / Lapsed | 1985-12-26 | — | 4 | Details |
| EP0163577A2 | Local area network for digital data processing system | Expired / Lapsed | 1985-05-24 | — | 17 | Details |
| EP0094179A2 | Computer interconnection part | Expired / Lapsed | 1983-04-28 | — | 10 | Details |
| US6563837B2 | Method and apparatus for providing work-conserving properti… | Expired / Lapsed | 1998-02-10 | 2003-05-13 | 47 | Details |
| US6260068B1 | Method and apparatus for migrating resources in a multi-pro… | Expired / Lapsed | 1998-06-10 | 2001-07-10 | 45 | Details |
| EP0384339B1 | Broker for computer network server selection | Expired / Lapsed | 1990-02-19 | 1997-04-02 | 15 | Details |
| EP0340787B1 | Ride-through energy boost circuit | Expired / Lapsed | 1989-05-05 | 1993-12-22 | 16 | Details |
| EP0163577B1 | Local area network for digital data processing system | Expired / Lapsed | 1985-05-24 | 1991-12-11 | 3 | Details |
| USD310356S | Video monitor | Expired / Lapsed | 1988-02-25 | 1990-09-04 | 1 | Details |
| US4734874A | Cordless computer assembly | Expired / Lapsed | 1986-05-12 | 1988-03-29 | 9 | Details |
| US4611202A | Split screen smooth scrolling arrangement | Expired / Lapsed | 1983-10-18 | 1986-09-09 | 14 | Details |
| US4494720A | Tilt swivel base | Expired / Lapsed | 1981-12-14 | 1985-01-22 | 25 | Details |
| US4345309A | Relating to cached multiprocessor system with pipeline timi… | Expired / Lapsed | 1980-01-28 | 1982-08-17 | 2 | Details |
| US4232366A | Bus for a data processing system with overlapped sequences | Expired / Lapsed | 1978-10-25 | 1980-11-04 | 45 | Details |
| US4156931A | Digital data communications device with standard option con… | Expired / Lapsed | 1978-05-25 | 1979-05-29 | 28 | Details |
| US4150433A | Automatic common mode rejection in an analog measuring syst… | Expired / Lapsed | 1977-10-17 | 1979-04-17 | 12 | Details |
| US4061908A | Method of and device for testing a digital memory | Expired / Lapsed | 1975-12-23 | 1977-12-06 | 13 | Details |
| US4055851A | Memory module with means for generating a control signal th… | Expired / Lapsed | 1976-02-13 | 1977-10-25 | 6 | Details |
| US4045781A | Memory module with selectable byte addressing for digital d… | Expired / Lapsed | 1976-02-13 | 1977-08-30 | 11 | Details |
| US4040028A | Data processing system comprising input/output processors | Expired / Lapsed | 1975-05-28 | 1977-08-02 | 6 | Details |
| US4030073A | Initialization circuit for establishing initial operation o… | Expired / Lapsed | 1975-11-05 | 1977-06-14 | 6 | Details |
| US4028539A | Memory with error detection and correction means | Expired / Lapsed | 1975-11-20 | 1977-06-07 | 3 | Details |
| US4016541A | Memory unit for connection to central processor unit and in… | Expired / Lapsed | 1974-04-17 | 1977-04-05 | 5 | Details |
| US3999163A | Secondary storage facility for data processing systems | Expired / Lapsed | 1974-01-10 | 1976-12-21 | 35 | Details |
| US3997875A | Computer configuration with claim cycles | Expired / Lapsed | 1975-06-23 | 1976-12-14 | 1 | Details |
| US3984818A | Paging in hierarchical memory systems | Expired / Lapsed | 1975-02-03 | 1976-10-05 | 2 | Details |
| US3982241A | Self-zeroing analog-to-digital conversion system | Expired / Lapsed | 1974-08-19 | 1976-09-21 | 33 | Details |
| US3974479A | Memory for use in a computer system in which memories have … | Expired / Lapsed | 1974-04-05 | 1976-08-10 | 7 | Details |
| US3940743A | Interconnecting unit for independently operable data proces… | Expired / Lapsed | 1973-11-05 | 1976-02-24 | 21 | Details |
| US3893084A | Memory access control system | Expired / Lapsed | 1973-05-01 | 1975-07-01 | 17 | Details |
| US3882402A | Circuit for transmitting velocity signals derived from posi… | Expired / Lapsed | 1973-02-26 | 1975-05-06 | 7 | Details |
| US3836889A | Priority interruption circuits for digital computer systems | Expired / Lapsed | 1973-03-23 | 1974-09-17 | 20 | Details |
| US3815099A | Data processing system | Expired / Lapsed | 1972-09-20 | 1974-06-04 | 12 | Details |
| US3810110A | Computer system overlap of memory operation | Expired / Lapsed | 1973-05-01 | 1974-05-07 | 15 | Details |
| US3753243A | Programmable machine controller | Expired / Lapsed | 1972-04-20 | 1973-08-14 | 31 | Details |
| US3710324A | Data processing system | Expired / Lapsed | 1970-04-01 | 1973-01-09 | 45 | Details |
| US3701113A | Analyzer for sequencer controller | Expired / Lapsed | 1971-08-13 | 1972-10-24 | 18 | Details |
| US3614741A | Data processing system with instruction addresses identifyi… | Expired / Lapsed | 1970-03-23 | 1971-10-19 | 45 | Details |
| US3614740A | Data processing system with circuits for transferring betwe… | Expired / Lapsed | 1970-03-23 | 1971-10-19 | 64 | Details |
| US3376554A | Digital computing system | Expired / Lapsed | 1965-04-05 | 1968-04-02 | 0 | Details |
| US3334249A | Diode-capacitor gate having additional shunting capacitor r… | Expired / Lapsed | 1965-03-05 | 1967-08-01 | 2 | Details |