Patent Explorer
Browse, filter, and analyze 52 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3057188A | Ultrasonic mechanical impedance measuring device | Sperry Products Inc | Expired / Lapsed | 1958-10-30 | 1962-10-09 | 1978-10-30 | 0.0 yrs | 0 | |
| US2888824A | Ultrasonic thickness gauge | Sperry Products Inc | Expired / Lapsed | 1955-03-21 | 1959-06-02 | 1975-03-21 | 0.0 yrs | 0 | |
| US2883860A | Automatic ultrasonic inspection | Sperry Products Inc | Expired / Lapsed | 1955-01-20 | 1959-04-28 | 1975-01-20 | 0.0 yrs | 0 | |
| US2873391A | Methods and means for coupling an ultrasonic transducer to a test specimen | Sperry Products Inc | Expired / Lapsed | 1955-11-04 | 1959-02-10 | 1975-11-04 | 0.0 yrs | 0 | |
| US2828456A | Servomechanism | Sperry Products Inc | Expired / Lapsed | 1953-11-27 | 1958-03-25 | 1973-11-27 | 0.0 yrs | 0 | |
| US2792545A | Digital servomechanism | Sperry Products Inc | Expired / Lapsed | 1953-08-25 | 1957-05-14 | 1973-08-25 | 0.0 yrs | 0 | |
| US2787160A | Ultrasonic liquid depth indicator | Sperry Products Inc | Expired / Lapsed | 1953-06-29 | 1957-04-02 | 1973-06-29 | 0.0 yrs | 0 | |
| US2787158A | Static scanning device in ultrasonic inspection of materials | Sperry Products Inc | Expired / Lapsed | 1953-07-23 | 1957-04-02 | 1973-07-23 | 0.0 yrs | 0 | |
| US2784359A | Digital curve generator | Sperry Products Inc | Expired / Lapsed | 1953-09-22 | 1957-03-05 | 1973-09-22 | 0.0 yrs | 0 | |
| US2740289A | Automatic scanning and recording device for ultrasonic inspection of materials | Sperry Products Inc | Expired / Lapsed | 1953-03-20 | 1956-04-03 | 1973-03-20 | 0.0 yrs | 0 | |
| US2709760A | Variable angle ultrasonic search unit | Sperry Products Inc | Expired / Lapsed | 1952-03-14 | 1955-05-31 | 1972-03-14 | 0.0 yrs | 0 | |
| US2705422A | Ultrasonic inspection device | Sperry Products Inc | Expired / Lapsed | 1951-03-30 | 1955-04-05 | 1971-03-30 | 0.0 yrs | 0 | |
| US2693105A | Ultrasonic inspection device | Sperry Products Inc | Expired / Lapsed | 1950-10-21 | 1954-11-02 | 1970-10-21 | 0.0 yrs | 0 | |
| US2682766A | Ultrasonic inspection device | Sperry Products Inc | Expired / Lapsed | 1950-08-17 | 1954-07-06 | 1970-08-17 | 0.0 yrs | 0 | |
| US2667780A | Ultrasonic inspection device | Sperry Products Inc | Expired / Lapsed | 1951-07-26 | 1954-02-02 | 1971-07-26 | 0.0 yrs | 0 | |
| US2660054A | Ultrasonic thickness measuring device | Sperry Products Inc | Expired / Lapsed | 1951-12-07 | 1953-11-24 | 1971-12-07 | 0.0 yrs | 0 | |
| US2657319A | Ultrasonic beam shaping device | Sperry Products Inc | Expired / Lapsed | 1950-06-15 | 1953-10-27 | 1970-06-15 | 0.0 yrs | 0 | |
| US2649550A | Reflection absorbing ultrasonic wedge | Sperry Products Inc | Expired / Lapsed | 1950-10-26 | 1953-08-18 | 1970-10-26 | 0.0 yrs | 0 | |
| US2601779A | Means for generating supersonic waves | Sperry Products Inc | Expired / Lapsed | 1946-05-10 | 1952-07-01 | 1966-05-10 | 0.0 yrs | 0 | |
| US2602102A | Variable angle ultrasonic transducer | Sperry Products Inc | Expired / Lapsed | 1950-04-13 | 1952-07-01 | 1970-04-13 | 0.0 yrs | 0 |
Showing 1 to 20 of 52 patents
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