Brassert & Co
Brassert &Active Patents
0
Total Holdings
8
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2552866A | Manufacture of water gas | Expired / Lapsed | 1944-05-01 | 1951-05-15 | 4 | Details |
| US2404944A | Apparatus for reduction of oxides | Expired / Lapsed | 1943-04-29 | 1946-07-30 | 0 | Details |
| US2399450A | Superheating gases | Expired / Lapsed | 1943-10-19 | 1946-04-30 | 0 | Details |
| US2173060A | Filtering apparatus | Expired / Lapsed | 1937-05-03 | 1939-09-12 | 0 | Details |
| US1995727A | Valve for hot gas mains | Expired / Lapsed | 1931-12-04 | 1935-03-26 | 0 | Details |
| US1964028A | Proportioning pump construction | Expired / Lapsed | 1932-11-18 | 1934-06-26 | 0 | Details |
| US1947447A | Apparatus for the filtration of air or gases | Expired / Lapsed | 1932-01-11 | 1934-02-20 | 0 | Details |
| US1944874A | Reduction of ores | Expired / Lapsed | 1931-07-08 | 1934-01-30 | 0 | Details |