Patent Explorer
Browse, filter, and analyze 10 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US4142958A | Method for fabricating multi-layer optical films | Northrop Grumman Guidance and Electronics Co Inc | Expired / Lapsed | 1978-04-13 | 1979-03-06 | 1998-04-13 | 0.0 yrs | 10 | |
| US4107701A | Acousto-optic snapshot recorder | Northrop Grumman Guidance and Electronics Co Inc | Expired / Lapsed | 1976-09-16 | 1978-08-15 | 1996-09-16 | 0.0 yrs | 6 | |
| US3777201A | Light amplifier tube having an ion and low energy electron trapping means | Northrop Grumman Guidance and Electronics Co Inc | Expired / Lapsed | 1972-12-11 | 1973-12-04 | 1992-12-11 | 0.0 yrs | 7 | |
| US3641563A | Correction circuit for converters | Northrop Grumman Guidance and Electronics Co Inc | Expired / Lapsed | 1970-02-25 | 1972-02-08 | 1990-02-25 | 0.0 yrs | 14 | |
| US3626206A | Circuit means for cyclically monitoring and indicating the condition of a function | Northrop Grumman Guidance and Electronics Co Inc | Expired / Lapsed | 1970-09-16 | 1971-12-07 | 1990-09-16 | 0.0 yrs | 16 | |
| US3435446A | Digital encoder | Northrop Grumman Guidance and Electronics Co Inc | Expired / Lapsed | 1965-01-04 | 1969-03-25 | 1985-01-04 | 0.0 yrs | 0 | |
| US3293629A | Planar media magnetic code identification system | Northrop Grumman Guidance and Electronics Co Inc | Expired / Lapsed | 1965-04-02 | 1966-12-20 | 1985-04-02 | 0.0 yrs | 2 | |
| US3233137A | Method and apparatus for cleansing by ionic bombardment | Northrop Grumman Guidance and Electronics Co Inc | Expired / Lapsed | 1961-08-28 | 1966-02-01 | 1981-08-28 | 0.0 yrs | 4 | |
| US3173248A | Ionization and plasma acceleration apparatus | Northrop Grumman Guidance and Electronics Co Inc | Expired / Lapsed | 1960-11-07 | 1965-03-16 | 1980-11-07 | 0.0 yrs | 1 | |
| US3034643A | Data processing for edge coded cards | Northrop Grumman Guidance and Electronics Co Inc | Expired / Lapsed | 1959-08-13 | 1962-05-15 | 1979-08-13 | 0.0 yrs | 0 |