Patent Explorer
Browse, filter, and analyze 15 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US5227953A | Apparatus for retaining and electrically interconnecting multiple devices | HP Inc | Expired / Lapsed | 1991-10-18 | 1993-07-13 | 2011-10-18 | 0.0 yrs | 21 | |
| US4113381A | Surveying instrument and method | HP Inc | Expired / Lapsed | 1976-11-18 | 1978-09-12 | 1996-11-18 | 0.0 yrs | 8 | |
| US4028538A | Programmable calculator employing algebraic language | HP Inc | Expired / Lapsed | 1974-09-30 | 1977-06-07 | 1994-09-30 | 0.0 yrs | 22 | |
| US3820079A | Bus oriented,modular,multiprocessing computer | HP Inc | Expired / Lapsed | 1972-11-20 | 1974-06-25 | 1992-11-20 | 0.0 yrs | 26 | |
| US3565057A | Signal analyzing apparatus for an ultrasonic scanning system | HP Inc | Expired / Lapsed | 1968-12-06 | 1971-02-23 | 1988-12-06 | 0.0 yrs | 2 | |
| US3557354A | Signal-to-noise ratio enhancement methods and means | HP Inc | Expired / Lapsed | 1970-01-09 | 1971-01-19 | 1990-01-09 | 0.0 yrs | 4 | |
| US3328763A | Electronic desk-type computer | HP Inc | Expired / Lapsed | 1963-10-01 | 1967-06-27 | 1983-10-01 | 0.0 yrs | 2 | |
| US3041535A | Electrical measuring instrument | HP Inc | Expired / Lapsed | 1959-01-12 | 1962-06-26 | 1979-01-12 | 0.0 yrs | 0 | |
| US3014135A | Direct current amplifier and modulator therefor | HP Inc | Expired / Lapsed | 1957-03-04 | 1961-12-19 | 1977-03-04 | 0.0 yrs | 0 | |
| US2994825A | Voltage to time-interval converter | HP Inc | Expired / Lapsed | 1958-07-09 | 1961-08-01 | 1978-07-09 | 0.0 yrs | 0 | |
| US2945183A | Delay generator | HP Inc | Expired / Lapsed | 1956-08-08 | 1960-07-12 | 1976-08-08 | 0.0 yrs | 0 | |
| US2900522A | Solid state network | HP Inc | Expired / Lapsed | 1957-01-08 | 1959-08-18 | 1977-01-08 | 0.0 yrs | 0 | |
| US2851596A | Electronic counter | HP Inc | Expired / Lapsed | 1954-04-15 | 1958-09-09 | 1974-04-15 | 0.0 yrs | 0 | |
| US2748278A | Sine wave generator | HP Inc | Expired / Lapsed | 1951-05-21 | 1956-05-29 | 1971-05-21 | 0.0 yrs | 0 | |
| US2418568A | Frequency divider | HP Inc | Expired / Lapsed | 1944-04-11 | 1947-04-08 | 1964-04-11 | 0.0 yrs | 0 |