| Patents for C01G 49 - Compounds of iron (8,643) |
|---|
| 04/05/1977 | US4016075 Adding ammonium hydroxide |
| 04/05/1977 | US4016054 Hydrometallurgical treatment process for extracting constituent metal values from ferro-nickel |
| 03/29/1977 | US4014710 Iron oxide, magnetic tapes |
| 03/22/1977 | US4013534 Method of making a magnetic oxide film |
| 03/08/1977 | US4011305 Process for obtaining hydrogen and oxygen from water |
| 02/22/1977 | US4008775 Method of using a porous Fe3 O4 drilling mud additive |
| 02/01/1977 | US4006215 Recovering iron, nickel, or cobalt from sulfate solution |
| 02/01/1977 | US4006090 Alpha iron (III) oxide crystals and derivatives |
| 02/01/1977 | US4005987 Iron sulfate |
| 12/28/1976 | US4000085 Process for manufacturing gels containing iron and molybdenum and the uses thereof |
| 12/07/1976 | US3996095 Epitaxial process of forming ferrite, Fe3 O4 and γFe2 O3 thin films on special materials |
| 11/30/1976 | US3994819 Oxalates |
| 11/23/1976 | US3993472 Heating, steaming |
| 11/16/1976 | US3992507 Halidation of manganiferous ore to obtain metal values and recovery and recycle of halide values |
| 10/19/1976 | US3987156 Method for manufacture of micaceous α-iron oxide |
| 10/12/1976 | US3985857 Process for recovering zinc from ferrites |
| 10/12/1976 | US3985856 Removal of iron from aqueous acid solutions containing iron and copper |
| 10/12/1976 | US3985770 Method of producing alkali metal tetracarbonylferrates and solvates thereof |
| 10/05/1976 | US3984312 Process for insolubilizing potentially water pollutable wastes from sodium or ammonium type sulfur dioxide air pollution control systems |
| 09/28/1976 | US3983218 Method for dry removal of sulfur dioxide from furnace flue, coal and other gases |
| 09/21/1976 | US3982049 Metal oxide |
| 09/21/1976 | US3981963 Iron chloride activated oxidation of sulfide ores |
| 09/21/1976 | US3981815 Process for utilizing collected material removed from effluent gas |
| 09/07/1976 | US3979265 Recovery of metals from sulfur bearing ores |
| 08/24/1976 | US3976743 Treatment of zinc plant residue |
| 08/10/1976 | US3974267 Ferrous sulfate, hydroxides, carbonates |
| 08/10/1976 | US3974079 Ferromagnetism, oxidation |
| 08/03/1976 | US3973072 Magnetic recording medium having binder-free phosphide coating |
| 07/20/1976 | US3970738 Process for producing iron oxide products from waste liquids containing ferrous salts |
| 07/13/1976 | US3969494 Method for improvement of properties of synthetic yellow iron oxide |
| 07/13/1976 | US3969129 Method of producing inorganic pigments |
| 06/08/1976 | US3962402 Extraction of copper as copper sulfate |
| 06/01/1976 | US3961030 Fluorination to aluminum trifluoride followed by pyrolysis |
| 05/25/1976 | US3959437 Hydrometallurgical process for the recovery of zinc, copper and cadmium from their ferrites |
| 05/04/1976 | US3954953 Delayed reaction of iron oxide with sulfuric acid |
| 04/27/1976 | US3953656 Magnetic recording medium and preparation thereof |
| 04/27/1976 | US3952567 Gas sensor |
| 04/13/1976 | US3950486 Method for separating metal constituents from ocean floor nodules |
| 03/30/1976 | US3947502 Production of finely divided acicular magnetic iron oxides |
| 03/23/1976 | US3946103 Production of precipitated red iron (III) oxide pigment relatively free of α-FEOOH |
| 03/16/1976 | US3944647 Recovering chlorine from the chlorination of titaniferous material |
| 01/13/1976 | US3932598 Process for producing alkali metal chromates and dichromates |
| 01/06/1976 | US3931025 Magnetic iron oxides with improved orientability and a process for their production |