Patent Explorer
Browse, filter, and analyze 27 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US4011601A | Prosthetic heart valve | Research Corp | Expired / Lapsed | 1975-10-14 | 1977-03-15 | 1995-10-14 | 0.0 yrs | 9 | |
| US3790507A | Plastic bone composition | Research Corp | Expired / Lapsed | 1970-07-06 | 1974-02-05 | 1990-07-06 | 0.0 yrs | 0 | |
| US3567028A | Membrane envelope assembly | Research Corp | Expired / Lapsed | 1968-12-26 | 1971-03-02 | 1988-12-26 | 0.0 yrs | 9 | |
| US3477436A | Method of accelerating wound healing by use of interacting metallic sutures | Research Corp | Expired / Lapsed | 1966-03-11 | 1969-11-11 | 1986-03-11 | 0.0 yrs | 0 | |
| US3018956A | Computing apparatus | Research Corp | Expired / Lapsed | 1957-12-03 | 1962-01-30 | 1977-12-03 | 0.0 yrs | 0 | |
| US3011711A | Cryogenic computing devices | Research Corp | Expired / Lapsed | 1957-04-03 | 1961-12-05 | 1977-04-03 | 0.0 yrs | 0 | |
| US2953926A | Navigation system | Research Corp | Expired / Lapsed | 1957-01-18 | 1960-09-27 | 1977-01-18 | 0.0 yrs | 0 | |
| US2944542A | Detecting and recording physiological changes accompanying emotion stresses | Research Corp | Expired / Lapsed | 1955-10-03 | 1960-07-12 | 1975-10-03 | 0.0 yrs | 0 | |
| US2909662A | Dielectric field emission methods and apparatus | Research Corp | Expired / Lapsed | 1955-07-18 | 1959-10-20 | 1975-07-18 | 0.0 yrs | 0 | |
| US2752792A | Gyroscopic apparatus | Research Corp | Expired / Lapsed | 1951-03-22 | 1956-07-03 | 1971-03-22 | 0.0 yrs | 0 | |
| US2752793A | Gyroscopic apparatus | Research Corp | Expired / Lapsed | 1951-03-22 | 1956-07-03 | 1971-03-22 | 0.0 yrs | 0 | |
| US2736880A | Multicoordinate digital information storage device | Research Corp | Expired / Lapsed | 1951-05-11 | 1956-02-28 | 1971-05-11 | 0.0 yrs | 0 | |
| US2693535A | Apparatus for energizing electrical precipitators and the like | Research Corp | Expired / Lapsed | 1948-06-18 | 1954-11-02 | 1968-06-18 | 0.0 yrs | 0 | |
| US2681121A | Recovery of suspended materials from gases | Research Corp | Expired / Lapsed | 1951-06-29 | 1954-06-15 | 1971-06-29 | 0.0 yrs | 0 | |
| US2557662A | Short-wave electromagnetic radiation catoptrics | Research Corp | Expired / Lapsed | 1948-11-29 | 1951-06-19 | 1968-11-29 | 0.0 yrs | 0 | |
| US2498882A | Impulse stimulating apparatus | Research Corp | Expired / Lapsed | 1946-06-20 | 1950-02-28 | 1966-06-20 | 0.0 yrs | 0 | |
| US2404918A | Counting system | Research Corp | Expired / Lapsed | 1940-05-01 | 1946-07-30 | 1960-05-01 | 0.0 yrs | 0 | |
| US2390074A | Protein product and process | Research Corp | Expired / Lapsed | 1942-02-09 | 1945-12-04 | 1962-02-09 | 0.0 yrs | 0 | |
| US2385803A | Process for the manufacture of plastic compositions | Research Corp | Expired / Lapsed | 1942-02-09 | 1945-10-02 | 1962-02-09 | 0.0 yrs | 0 | |
| US2379862A | Justifying typewriter | Research Corp | Expired / Lapsed | 1942-07-31 | 1945-07-10 | 1962-07-31 | 0.0 yrs | 0 |
Showing 1 to 20 of 27 patents
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