Ljungstroms Angturbin AB
LjungstromActive Patents
0
Total Holdings
8
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| GB291402A | Improvements in regenerative heat exchange apparatus | Expired / Lapsed | 1928-05-26 | — | 0 | Details |
| US2117673A | Hydraulic transmission | Expired / Lapsed | 1935-05-07 | 1938-05-17 | 0 | Details |
| US2102634A | Variable speed power transmission | Expired / Lapsed | 1933-03-03 | 1937-12-21 | 0 | Details |
| US1947477A | Turbine-driven compressor apparatus | Expired / Lapsed | 1931-01-24 | 1934-02-20 | 0 | Details |
| US1912586A | Cooling for electric machines | Expired / Lapsed | 1930-05-29 | 1933-06-06 | 0 | Details |
| US1900119A | Variable speed power transmission | Expired / Lapsed | 1932-01-08 | 1933-03-07 | 0 | Details |
| US1762446A | Regenerative air preheater | Expired / Lapsed | 1923-08-17 | 1930-06-10 | 0 | Details |
| US1654294A | Regenerative air or gas preheater | Expired / Lapsed | 1922-08-03 | 1927-12-27 | 0 | Details |