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Bull HN Information Systems Italia SpA

Bull HN In
Active Patents
0
Total Holdings
48

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US4133051A Information refreshing system in a semiconductor memory Expired / Lapsed 1974-12-23 1979-01-02 2 Details
US4106108A Semiconductor dynamic memory and related refreshing system Expired / Lapsed 1976-08-13 1978-08-08 10 Details
US4041473A Computer input/output control apparatus Expired / Lapsed 1975-05-12 1977-08-09 13 Details
US3916178A Apparatus and method for two controller diagnostic and veri… Expired / Lapsed 1973-12-10 1975-10-28 12 Details
US3911216A Nonlinear code generator and decoder for transmitting data … Expired / Lapsed 1973-12-17 1975-10-07 5 Details
US3909799A Microprogrammable peripheral processing system Expired / Lapsed 1973-12-18 1975-09-30 36 Details
US3882386A Device for testing operation of integrated circuital units Expired / Lapsed 1972-03-10 1975-05-06 19 Details
US3866183A Communications control apparatus for the use with a cache s… Expired / Lapsed 1973-08-31 1975-02-11 12 Details
US3866181A Interrupt sequencing control apparatus Expired / Lapsed 1972-12-26 1975-02-11 13 Details
US3863226A Configurable communications controller having shared logic … Expired / Lapsed 1973-01-02 1975-01-28 29 Details
US3845474A Cache store clearing operation for multiprocessor mode Expired / Lapsed 1973-11-05 1974-10-29 15 Details
US3833888A General purpose digital processor for terminal devices Expired / Lapsed 1973-02-05 1974-09-03 12 Details
US3828325A Universal interface system using a controller to adapt to a… Expired / Lapsed 1973-02-05 1974-08-06 20 Details
US3821645A Device for testing the operation of sequential integrated c… Expired / Lapsed 1973-03-13 1974-06-28 6 Details
US3821709A Memory storage sequencer Expired / Lapsed 1972-10-05 1974-06-28 18 Details
US3818261A Stepping motor speed control apparatus Expired / Lapsed 1971-12-23 1974-06-18 37 Details
US3814922A Availability and diagnostic apparatus for memory modules Expired / Lapsed 1972-12-01 1974-06-04 28 Details
US3814921A Apparatus and method for a memory partial-write of error co… Expired / Lapsed 1972-11-15 1974-06-04 13 Details
US3810120A Automatic deactivation device Expired / Lapsed 1971-02-12 1974-05-07 21 Details
US3803560A Technique for detecting memory failures and to provide for … Expired / Lapsed 1973-01-03 1974-04-09 29 Details
US3796996A Main memory reconfiguration Expired / Lapsed 1972-10-05 1974-03-12 8 Details
US3792203A Automatic redial memory device for telephones Expired / Lapsed 1972-03-10 1974-02-12 23 Details
US3789971A Servo control system for a serial printer print head Expired / Lapsed 1971-06-21 1974-02-05 30 Details
US3773973A Universal data-communications interface Expired / Lapsed 1971-08-03 1973-11-20 7 Details
US3771134A Communication control device utilized as an input/output mo… Expired / Lapsed 1971-02-12 1973-11-06 25 Details
US3771135A Remote terminal system Expired / Lapsed 1971-02-12 1973-11-06 39 Details
US3753232A Memory control system adaptive to different access and cycl… Expired / Lapsed 1972-04-06 1973-08-14 24 Details
US3753236A Microprogrammable peripheral controller Expired / Lapsed 1972-03-31 1973-08-14 7 Details
US3742457A High speed data transfer for a peripheral controller Expired / Lapsed 1972-05-15 1973-06-26 8 Details
US3740698A Ribbon cable connector system having stress relieving means Expired / Lapsed 1971-05-12 1973-06-19 11 Details
US3728690A Branch facility diagnostics Expired / Lapsed 1971-08-26 1973-04-17 28 Details
US3725871A Multi function polling technique Expired / Lapsed 1971-02-11 1973-04-03 45 Details
US3723973A Data communication controller having dual scanning Expired / Lapsed 1970-09-30 1973-03-27 2 Details
US3716838A Data processing system with selective character addressing … Expired / Lapsed 1970-08-24 1973-02-13 0 Details
US3700870A Error control arrangement for associative information stora… Expired / Lapsed 1971-04-09 1972-10-24 12 Details
US3699525A Use of control words to change configuration and operating … Expired / Lapsed 1970-11-27 1972-10-17 19 Details
US3680051A Apparatus for maintaining character synchronization in a da… Expired / Lapsed 1970-07-29 1972-07-25 7 Details
US3671945A Data message control system Expired / Lapsed 1970-09-02 1972-06-20 15 Details
US3670306A Process for data communication between data processing syst… Expired / Lapsed 1971-03-01 1972-06-13 111 Details
US3643223A Bidirectional transmission data line connecting information… Expired / Lapsed 1970-04-30 1972-02-15 21 Details
US3629831A Data transmission controller for central to remote system Expired / Lapsed 1967-01-03 1971-12-21 24 Details
US3618031A Data communication system Expired / Lapsed 1970-06-29 1971-11-02 33 Details
US3618039A Data communication system including automatic information t… Expired / Lapsed 1969-07-28 1971-11-02 49 Details
US3618045A Management control subsystem for multiprogrammed data proce… Expired / Lapsed 1969-05-05 1971-11-02 17 Details
US3611161A Apparatus for separating data signals and timing signals fr… Expired / Lapsed 1969-06-16 1971-10-05 9 Details
US3609684A Method and apparatus for storing and retrieving information… Expired / Lapsed 1970-04-27 1971-09-28 26 Details
US3588831A Input/output controller for independently supervising a plu… Expired / Lapsed 1968-11-13 1971-06-28 0 Details
US3581064A Record scanner with loading and indexing means Expired / Lapsed 1969-04-30 1971-05-25 15 Details