Patent Explorer
Browse, filter, and analyze 4 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2234326A | Yielding follow-up control | Siemens APP und Maschinen GmbH | Expired / Lapsed | 1939-11-09 | 1941-03-11 | 1959-11-09 | 0.0 yrs | 0 | |
| US2213357A | Direction indicating means | Siemens APP und Maschinen GmbH | Expired / Lapsed | 1938-03-15 | 1940-09-03 | 1958-03-15 | 0.0 yrs | 0 | |
| US2191250A | System for the automatic control of airplanes | Siemens APP und Maschinen GmbH | Expired / Lapsed | 1935-09-04 | 1940-02-20 | 1955-09-04 | 0.0 yrs | 0 | |
| US2162862A | Attitude control means for aircraft | Siemens APP und Maschinen GmbH | Expired / Lapsed | 1938-05-20 | 1939-06-20 | 1958-05-20 | 0.0 yrs | 0 |