| Patents for C01G 21 - Compounds of lead (978) |
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| 05/24/1995 | EP0441893B1 Superconducting metal oxide compositions and processes for manufacture and use |
| 05/10/1995 | EP0651909A1 Superconducting compositions. |
| 05/02/1995 | US5411667 Method of selectively separating lead ions |
| 04/20/1995 | WO1995010482A1 PROCESS AND APPARATUS FOR THE PRODUCTION OF LITHARGE (PbO) |
| 04/20/1995 | CA2155672A1 Process and apparatus for the production of litharge (pbo) |
| 04/18/1995 | US5407908 Method of manufacturing an oxide superconductor |
| 04/05/1995 | EP0646185A1 Production of metals from minerals |
| 03/22/1995 | EP0644600A2 Oxide superconductor and method of manufacturing the same |
| 03/07/1995 | CA1334620C Devices and systems based on novel superconducting material |
| 01/24/1995 | US5384088 Powders with strontium, calcium and copper oxides |
| 12/28/1994 | EP0630856A1 Process for removing iron and manganese from acid solutions of zinc salts |
| 12/13/1994 | US5372990 Oxide superconductor |
| 11/30/1994 | CN1095648A Compositions and methods for waste treatment |
| 11/23/1994 | CN1026681C Plumbous chromate and lead sulfate produced by waste oxalic acid dregs |
| 10/19/1994 | EP0619764A1 Process for removing heavy metals from soils. |
| 09/21/1994 | CN1092383A Tech. for preparing lead salt from galena |
| 09/20/1994 | US5348631 Method and apparatus for synthesizing lead β-diketonates |
| 08/30/1994 | US5342828 Superconducting Tl-Pb-Sr-Ca-Cu-O thin film |
| 08/24/1994 | CN1091157A Production of metal from minerals |
| 06/07/1994 | US5318949 Superconducting ceramic composition comprising (Pb,Cd)-Sr-(Y,Q)-Cu-O wherein Q is Ca OR Sr |
| 04/28/1994 | WO1994009518A1 Process for making thin films by pulsed excimer laser evaporation |
| 04/28/1994 | CA2146629A1 Process for making thin films by pulsed excimer laser evaporation |
| 03/31/1994 | WO1994006575A1 Compositions and methods for waste treatment |
| 03/31/1994 | CA2145310A1 Compositions and methods for waste treatment |
| 03/30/1994 | EP0589261A1 Oxide-based superconductor, a process for preparing the same and a wire material of comprising the same |
| 03/01/1994 | US5290761 Heating target below melting point before and during ablation |
| 03/01/1994 | CA1327367C Polybasic lead compound and the use thereof as stabilizer for halogen-containing polymers |
| 02/15/1994 | US5286464 Complexing contaminated liquids with amorphous silica gel having surface functionalized by substituted silanetriols, then recovery of metals and regeneration of resin |
| 02/03/1994 | WO1994002947A1 Superconducting compositions |
| 02/03/1994 | CA2140632A1 Superconducting compositions |
| 01/06/1994 | WO1994000606A1 Production of metals from minerals |
| 12/28/1993 | US5273554 Applying a lead oxide/sulfate reaction product to a lead electrode and converting to lead oxide |
| 11/16/1993 | US5262393 Electrical properties ranging from insulating to superconducting |
| 11/09/1993 | US5260251 Sputtering an oxide film on a dielectric substrate from the target compounds and heating in oxygen atmosphere in deposited film in presence of thalium and lead oxide source |
| 10/13/1993 | EP0428630B1 Superconducting metal oxide compositions and processes for manufacture and use |
| 10/12/1993 | US5252544 Oxide superconductor having the formula Pba (M1-x-y Cex Sry)4 Cu3-a Oz where M is at least one rare earth element |
| 10/12/1993 | US5252311 Phase stable lead monoxide and process for the production thereof |
| 09/14/1993 | US5244872 Precipitation of salt, sintering |
| 07/13/1993 | US5227150 Method for continuously manufacturing red lead |
| 05/27/1993 | WO1993006952A3 Process for removing heavy metals from soils |
| 05/05/1993 | EP0540229A1 Batteries and materials useful therein |
| 05/04/1993 | US5207878 Method for the preparation of fine particulate metal-containing compound |
| 04/28/1993 | EP0539208A1 Oxide superconductive material of T1(thallium) and Pb(lead) system and method for manufacturing the same |
| 04/28/1993 | EP0539072A1 A superconducting ceramic composition |
| 04/28/1993 | CN1020381C Conversion treatment of lead-base gold or lead ores with soda |
| 04/26/1993 | CA2081298A1 Superconducting ceramic composition |
| 04/15/1993 | WO1993006952A2 Process for removing heavy metals from soils |
| 04/15/1993 | CA2119021A1 Process for removing heavy metals from soil |
| 03/17/1993 | EP0531520A1 Process for forming barium metaplumbate |
| 03/04/1993 | WO1992022921A3 Process for making superconducting tl-pb-sr-ca-cu oxide films and devices |
| 03/02/1993 | US5190914 Containing lead |
| 02/18/1993 | WO1992017552A3 Process for forming barium metaplumbate |
| 01/12/1993 | US5179213 Macrocyclic ligands bonded to an inorganic support matrix and a process for selectively and quantitatively removing and concentrating ions present at low concentrations from mixtures thereof with other ions |
| 12/23/1992 | WO1992022921A2 PROCESS FOR MAKING SUPERCONDUCTING Tl-Pb-Sr-Ca-Cu OXIDE FILMS AND DEVICES |
| 12/15/1992 | CA1311493C Process for the preparation of dialkyldithiocarbamates of multivalent metals |
| 10/15/1992 | WO1992017552A2 Process for forming barium metaplumbate |
| 10/14/1992 | EP0508011A1 A method and apparatus to continuously manufacture red lead |
| 10/14/1992 | CN1018628B Process for preparing chrome yellow with galena |
| 09/30/1992 | EP0437562B1 Process and device for accelerated production of red lead |
| 09/10/1992 | DE4107287A1 Multistage continuous pptn. of metal ions from alkaline solns. - using carbon di:oxide gas to form seed crystals which are converted in following stages to filtrate size by addn. of further carbon di:oxide |
| 09/09/1992 | EP0502204A1 Oxide superconductor |
| 09/01/1992 | US5143806 Process for forming barium metaplumbate |
| 05/06/1992 | EP0483858A1 Layered copper oxides |
| 04/02/1992 | WO1992005114A1 Oxide superconductor |
| 03/18/1992 | EP0475753A2 M-R-Tl-Sr-Cu-O based superconductors above liquid nitrogen temperature and processes for making them |
| 03/13/1992 | CA2043894A1 M-r-t1-sr-cu-o based superconductors above liquid nitrogen temperature and processes for making same |
| 02/11/1992 | US5087437 Process for preparing crystalline mixed metal oxides |
| 01/02/1992 | EP0463506A1 Oxide superconductor and its manufacturing method |
| 12/04/1991 | EP0428630A4 Superconducting metal oxide compositions and processes for manufacture and use |
| 12/04/1991 | CN1056667A Plumbous chromate and lead sulfate produced by waste oxalic acid dregs |
| 11/13/1991 | EP0441893A4 Superconducting metal oxide compositions and processes for manufacture and use |
| 11/12/1991 | US5064517 Exothermic reaction of organometallic compound with oxygen or oxygen containing gas by laser irradiation |
| 09/04/1991 | EP0444955A2 Superconducting material of metal oxide |
| 08/21/1991 | EP0441893A1 Superconducting metal oxide compositions and processes for manufacture and use. |
| 07/10/1991 | CN1052903A Conversion treatment of lead-base gold or lead ores with soda |
| 06/12/1991 | EP0431170A1 Oxide superconductor |
| 06/11/1991 | CA1284844C Brine treatment using ethylene/carboxylic acid polymers |
| 06/04/1991 | US5021398 Coating substrate with unsaturated acid metal salts; photopolymerization, pyrolysis |
| 05/29/1991 | EP0428630A1 Superconducting metal oxide compositions and processes for manufacture and use. |
| 05/21/1991 | US5017554 Electrical devices |
| 05/07/1991 | US5013532 Method for recycling electric arc furnace dust |
| 05/07/1991 | CA1283984C Removal of metals from solutions |
| 04/21/1991 | CA2025161A1 Method for selectively recovering lead, zinc and calcium from materials in which they are contained as oxide or salts not soluble in water |
| 04/17/1991 | EP0422386A1 Process for preparing a superconductor based on oxalate |
| 04/16/1991 | CA1282965C Zinc recovery from furnace dust |
| 04/10/1991 | EP0420969A1 COPPER OXIDE OF MIXED VALENCY DERIVED FROM THE STRUCTURE OF PERVSKITE OF TYPE (ACuO 3?-x) 2?(A'O) 2? |
| 03/20/1991 | EP0417628A1 Process for preparing a superconductor by precipitation |
| 03/20/1991 | EP0417627A1 Process for preparing a superconductor |
| 01/24/1991 | WO1991000848A1 Process and device for accelerated production of red lead |
| 01/17/1991 | DE3922654A1 Verfahren zur beschleunigten herstellung von mennige A method for accelerated production of red lead |
| 12/13/1990 | WO1990015023A1 Oxide superconductor |
| 12/04/1990 | US4975268 Reoxidizing the returned crude oxide; one step; high speed |
| 11/15/1990 | WO1990011968A3 COPPER OXIDE OF MIXED VALENCY DERIVED FROM THE STRUCTURE OF PERVSKITE OF TYPE (ACuO3-x)2(A'O)¿2? |
| 10/18/1990 | WO1990011968A2 COPPER OXIDE OF MIXED VALENCY DERIVED FROM THE STRUCTURE OF PERVSKITE OF TYPE (ACuO3-x)2(A'O)¿2? |
| 10/10/1990 | CN1045957A Prepn. of lead oxide powder by met-milling oxidation method |
| 09/12/1990 | EP0386829A1 Process for continuously reacting solids slurried in a liquid and/or liquids and solids |
| 09/11/1990 | US4956154 Selective removal of chromium, nickel, cobalt, copper and lead cations from aqueous effluent solutions |
| 08/09/1990 | WO1990008739A1 Mixed-valency copper oxide containing lead and barium and process for its production |
| 07/25/1990 | EP0379360A2 Method for the preparation of fine particulate metal-containing compound |
| 07/24/1990 | US4943375 Crown and crypt compounds bound to silica; chromatography; metal recovery; blood, photographic films and waste demetallization |