Patents for C01G 17 - Compounds of germanium (532) |
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12/13/1983 | US4420430 Method for preparing organo germanium propionic acid derivatives |
08/30/1983 | US4401637 Crystalline isotactic zeolites and their preparation |
08/24/1983 | EP0086569A1 Preparation of bis-carboxy ethyl germanium sesquioxide and its propionic acid derivatives |
08/10/1983 | EP0085513A1 Method for preparing organo germanium propionic acid derivatives |
06/21/1983 | US4389379 Process for selective liquid-liquid extraction of germanium |
05/31/1983 | US4385915 Removal of germanium from the effluent of processes for the production of optical components |
02/08/1983 | US4372834 Photochlorination of chloride glass formers silicone or germanium tetrachloride; hydrogen chloride removal; distillation |
01/20/1983 | WO1983000141A1 Novel crystalline microporous three-dimensionally ordered solid |
01/12/1983 | EP0069594A1 Novel crystalline microporous three-dimensionally ordered solid |
01/05/1983 | EP0068541A1 Process for the recovery of germanium from an aqueous solution |
01/05/1983 | EP0068540A1 Process for the recovery of germanium from an aqueous solution using an alpha-hydroxyoxime |
01/04/1983 | US4367163 Silica-clay complexes |
04/06/1982 | US4323618 Single crystal of calcium-gallium germanium garnet and substrate manufactured from such a single crystal and having an epitaxially grown bubble domain film |
03/04/1982 | WO1982000664A1 Process for selective extraction of germanium |
03/03/1982 | EP0046504A1 Crystalline metal-silicate zeolite ZBM-30 and method of preparing it |
02/24/1982 | EP0046437A1 Process for the selective extraction of germanium |
01/12/1982 | US4310341 Removal of --OH impurities from fiber optic precursor materials |
09/02/1981 | EP0034727A2 Crystalline isotactic zeolites, process for their preparation and their use as catalysts |
03/24/1981 | US4258023 Process for the pyrogenous production of very finely divided oxides of a metal and/or of a metalloid |
08/12/1980 | CA1083358A1 Process for the recovery and purification of germanium from zinc ores |
07/29/1980 | CA1082424A1 Method of preparing crystalline compounds a suiva xx b suvia xx |
06/17/1980 | CA1079679A1 Process for purifying halogenosilanes and halogenogermanes |
05/28/1980 | EP0011084A1 Process for the pyrogenic production of a highly particulate oxide of a metal and/or metalloid |
01/09/1980 | EP0006118A1 Process for vapor-phase growing of gallium arsenide containing a large concentration of germanium |
10/30/1979 | US4172882 Lithium ion transport compositions |
02/27/1979 | US4141778 Vapor deposition, decomposition |
09/26/1978 | US4117103 Crystals with divalent cations, germanium, oxygen |
09/05/1978 | US4112057 Process for purifying halogenosilanes |
05/23/1978 | US4090871 Process for the recovery and purification of germanium from zinc ores |
08/30/1977 | US4045241 Synthetic taeniolite and process of producing the same |
05/31/1977 | US4027074 Process for producing ferroelectric crystalline material |
11/16/1976 | US3992159 Process for purification by cryogenic sublimation |