Patent Explorer
Browse, filter, and analyze 51 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| EP0003009A2 | A method and an apparatus for transferring digital information in a telephone system | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1978-12-19 | — | 1998-12-19 | 0.0 yrs | 9 | |
| GB586753A | Improvements in or relating to automatic telephone systems | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1944-01-21 | — | 1964-01-21 | 0.0 yrs | 0 | |
| DE1234071B | Device for counting and classifying vehicles | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1962-05-02 | — | 1982-05-02 | 0.0 yrs | 0 | |
| US4669107A | Method of increasing the number of call options in a mobile telephone system | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1986-04-16 | 1987-05-26 | 2006-04-16 | 0.0 yrs | 4 | |
| US4622665A | Synchronizing system | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1983-09-14 | 1986-11-11 | 2003-09-14 | 0.0 yrs | 3 | |
| US4457579A | Arrangement to reduce influence of diffuse and direct reflections in a display device based on a source of light emitting in a narrow band | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1979-08-14 | 1984-07-03 | 1999-08-14 | 0.0 yrs | 7 | |
| US3976831A | Method for transmitting pictures at a picture telephone transmission having limited bandwidth | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1974-12-06 | 1976-08-24 | 1994-12-06 | 0.0 yrs | 3 | |
| US3940566A | Arrangement for preventing interruptions in a time division multiplex transmission link for transfer of data | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1974-09-12 | 1976-02-24 | 1994-09-12 | 0.0 yrs | 6 | |
| US3902014A | Circuit arrangement for regenerating the modulation timing of a line signal in a data transmission equipment | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1973-08-15 | 1975-08-26 | 1993-08-15 | 0.0 yrs | 4 | |
| US3818142A | Device for production of switching order information for transmission of pcm words | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1973-01-29 | 1974-06-18 | 1993-01-29 | 0.0 yrs | 3 | |
| US3761884A | Arrangement for synchronizing a number of co-operating computers | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1971-11-04 | 1973-09-25 | 1991-11-04 | 0.0 yrs | 4 | |
| US3643030A | Method for transferring information in the form of time separated signal elements between subscribers in a telecommunication system and a telecommunication system, etc. | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1970-02-06 | 1972-02-15 | 1990-02-06 | 0.0 yrs | 18 | |
| US3628158A | Arrangement at parallelly working machines | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1969-10-27 | 1971-12-14 | 1989-10-27 | 0.0 yrs | 8 | |
| US3622916A | Periodic frequency characteristic filter for filtering periodic sampled signal | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1970-02-24 | 1971-11-23 | 1990-02-24 | 0.0 yrs | 6 | |
| US3599158A | Method for moving variable data during operation from a first store field to a second store field in the data store of a computer | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1968-12-18 | 1971-08-10 | 1988-12-18 | 0.0 yrs | 2 | |
| US3524940A | Telephone plant with satellite exchanges connected by radial and transverse channels | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1966-10-17 | 1970-08-18 | 1986-10-17 | 0.0 yrs | 0 | |
| US3517174A | Method of localizing a fault in a system including at least two parallelly working computers | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1966-11-02 | 1970-06-23 | 1986-11-02 | 0.0 yrs | 0 | |
| US3475732A | Means for activating a certain instruction out of a plurality of instructions stored in the instruction memory of a computer | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1966-12-27 | 1969-10-28 | 1986-12-27 | 0.0 yrs | 0 | |
| US3405395A | Circuit arrangement for activating an electric circuit by means of an instruction word | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1966-04-12 | 1968-10-08 | 1986-04-12 | 0.0 yrs | 0 | |
| US3382409A | Overcurrent-and overvoltage-protection arrangement | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1966-05-11 | 1968-05-07 | 1986-05-11 | 0.0 yrs | 2 |
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