Koehring Co
Koehring CActive Patents
0
Total Holdings
13
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US4720207A | Segmented rotor | Expired / Lapsed | 1986-08-29 | 1988-01-19 | 26 | Details |
| US3072145A | Flow control device | Expired / Lapsed | 1958-04-30 | 1963-01-08 | 2 | Details |
| US3002575A | Multiple material batcher control | Expired / Lapsed | 1956-03-05 | 1961-10-03 | 0 | Details |
| US2728463A | Combined truck and crane | Expired / Lapsed | 1948-04-12 | 1955-12-27 | 0 | Details |
| US2648920A | Carry-type scraper and digging front apron arrangement | Expired / Lapsed | 1947-04-04 | 1953-08-18 | 0 | Details |
| US2570191A | Detachable driving axle unit | Expired / Lapsed | 1948-07-13 | 1951-10-09 | 0 | Details |
| US2363018A | Method for treatment of highway grade and subgrade materials | Expired / Lapsed | 1941-02-17 | 1944-11-21 | 0 | Details |
| US2247664A | Push connector for vehicles | Expired / Lapsed | 1940-03-25 | 1941-07-01 | 0 | Details |
| US1921537A | Cushion cleat wheel | Expired / Lapsed | 1930-12-31 | 1933-08-08 | 0 | Details |
| US1857172A | Safety mechanism for material handling machines | Expired / Lapsed | 1928-12-07 | 1932-05-10 | 0 | Details |
| US1717757A | Steering control for endless traction cranes | Expired / Lapsed | 1924-05-10 | 1929-06-18 | 0 | Details |
| US1679614A | Multiple-tank water-supply mechanism | Expired / Lapsed | 1925-07-27 | 1928-08-07 | 0 | Details |
| US1533464A | Finishing machine | Expired / Lapsed | 1923-02-02 | 1925-04-14 | 0 | Details |