Ruhrchemie AG
RuhrchemieActive Patents
0
Total Holdings
7
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| GB830922A | Gas diffusion electrodes and a process for their production | Expired / Lapsed | 1956-03-26 | — | 0 | Details |
| US2947797A | Direct production of electrical energy from combustible fue… | Expired / Lapsed | 1957-05-14 | 1960-08-02 | 0 | Details |
| US2889892A | Lock for the discharge of solids separated from gaseous med… | Expired / Lapsed | 1957-07-02 | 1959-06-09 | 0 | Details |
| US2889259A | Process for the chloro-sulfonation of polyethylene | Expired / Lapsed | 1956-02-08 | 1959-06-02 | 2 | Details |
| US2884783A | Photoelectric apparatus for measuring and remote reading of… | Expired / Lapsed | 1954-01-26 | 1959-05-05 | 0 | Details |
| US2860175A | Homeoporous gas-diffusion electrode for galvanic cells | Expired / Lapsed | 1956-09-05 | 1958-11-11 | 1 | Details |
| US2830109A | Fuel cell | Expired / Lapsed | 1952-05-29 | 1958-04-08 | 2 | Details |