| Patents for C01G 21 - Compounds of lead (978) |
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| 08/09/2000 | CN1262788A Shaped body consisting of textured superconductor material and method for producing same |
| 08/08/2000 | US6099792 Placing solution comprising tetraethyl or tertamethyl orthosilicate, alcohol, water and acid or basic catalyst into mold formed from graphite or carbide; allowing soultion to gel; drying; removing dried silica gel |
| 07/18/2000 | US6090737 Recovering lead by forming a compound that is insoluble in the reaction mixture arising from diaryl carbonate production; separating the compound; calcining to form catalytic lead compound for reuse such as in carbonylation |
| 06/29/2000 | WO2000037420A1 Removal of lead from organic diaryl carbonate reaction mixtures |
| 06/02/2000 | WO2000031180A1 Process for hydrophobicizing particles, and their use in polymer dispersions |
| 06/02/2000 | WO2000031179A1 Process for treating particles, and their use in dispersions |
| 05/20/2000 | CA2254559A1 Process for hydrophobicizing particles, and their use in dispersions |
| 05/20/2000 | CA2254150A1 Process for treating particles, and their use in dispersions |
| 05/02/2000 | CA2138777C Production of metals from minerals |
| 04/13/2000 | CA2346288A1 Sol-gel process using porous mold |
| 04/04/2000 | US6045722 Photostimulable phosphor |
| 03/22/2000 | EP0986828A1 Shaped body consisting of textured supraconductor material and method for producing the same |
| 02/29/2000 | US6030433 Method for extracting metals from metal-containing materials by pyrohydrolysis |
| 11/24/1999 | CN1235933A Radiation synthetic preparing method for nanometer metal sulfide |
| 10/13/1999 | EP0948460A1 Crystalline lead-containing oxyfluorides |
| 09/28/1999 | CA1340774C Superconducting metal oxide compositions and processes for manufacture and use |
| 09/15/1999 | EP0646185B1 Production of metals from minerals |
| 09/10/1999 | WO1999044942A1 Thermal process for conversion of active material from spent lead acid batteries to lead monoxide |
| 07/29/1999 | DE19803969A1 One-step production of highly pure lead monoxide, used as raw material in the glass industry |
| 06/23/1999 | EP0726806B1 Method of preparing a powder in a plasma arc and device for carrying out said method |
| 05/25/1999 | US5906670 Spraying toward substrate aerosol droplets of metal salt dissolved in volatile solvent, desolventizing and reacting droplets while airborne with gas phase reagent to form a metal or metal compound to be coated onto substrate |
| 04/21/1999 | EP0909335A1 Treatment of fly ash/apc residues including lead salt recovery |
| 03/24/1999 | EP0902984A1 A NOVEL REACTION FOR HIGH PERFORMANCE (Bi,Pb) 2?Sr 2?Ca 2?Cu 3?O y? COMPOSITES |
| 12/30/1998 | WO1998058878A1 Process for the manufacture of lead oxide |
| 12/29/1998 | US5853946 Photostimulable phosphor |
| 12/29/1998 | US5853688 Crystalline lead-containing oxfluorides |
| 12/23/1998 | CN1202461A Process for producing three basic lead sulphate using lead in copper slime |
| 12/10/1998 | WO1998056048A1 Shaped body consisting of textured supraconductor material and method for producing the same |
| 12/03/1998 | DE19722779A1 Formkörper aus texturiertem Supraleitermaterial und Verfahren zu ihrer Herstellung Shaped body of textured superconductor material and method for its preparation |
| 11/24/1998 | US5840262 Process for the manufacture of pure lead oxide from exhausted batteries |
| 11/18/1998 | CN1199019A Method for preparation of three-base lead sulfate using lead dust from glass bulb production as raw material |
| 08/25/1998 | US5798318 Increasing the electroconductivity by oxidation to reduce the lead concentration in oxide phase lead divalences into lead tetravalences second phase at high energy composite |
| 08/25/1998 | CA2140504C Process for converting lead and lead oxides to barium metaplumbate |
| 07/28/1998 | US5785935 Using liquid leachant |
| 07/22/1998 | EP0729394B1 Making quantum dot particles of uniform size |
| 06/30/1998 | CA2005207C Method and apparatus for making highly oxidized lead powder |
| 05/13/1998 | CN1038348C Prodn. of metal from minerals |
| 04/28/1998 | US5744107 Process for removing heavy metals from soil |
| 04/15/1998 | EP0835920A1 A new photostimulable phosphor |
| 04/01/1998 | EP0764137B1 Method for extracting metals from metal-containing materials by pyrohydrolysis |
| 03/03/1998 | US5723027 Method for preparing a powder in a plasma arc and device for carrying out said method |
| 02/19/1998 | WO1998006669A1 Crystalline lead-containing oxyfluorides |
| 01/27/1998 | CA2151289C Treatment of lead sulphide bearing minerals |
| 01/06/1998 | US5705457 Copper, cadmium oxide with alkaline earth metal or lead |
| 12/18/1997 | DE19704535A1 New superconductive oxide with increased critical current density |
| 11/27/1997 | WO1997044833A1 A NOVEL REACTION FOR HIGH PERFORMANCE (Bi,Pb)2Sr2Ca2Cu3Oy COMPOSITES |
| 11/27/1997 | WO1997044500A1 Treatment of fly ash/apc residues including lead salt recovery |
| 11/27/1997 | CA2253644A1 Treatment of fly ash/apc residues including lead salt recovery |
| 11/25/1997 | US5690718 Low energy process for recovering lead dioxide and lead monoxide which can be used in new battery manufacture |
| 11/18/1997 | US5688980 Organometallic lead precursor, in-situ synthesis thereof, lead-titanium based thin film using the same, and preparation method therefor |
| 10/29/1997 | EP0619764B1 Process for removing heavy metals from soils |
| 08/26/1997 | US5660806 Deleading by leaching, dissolving in hydrochloric acid or sulfuric acid and a salt of alkali metal, alkaline earth metal or ammonium, recovering from liquid phase |
| 08/26/1997 | US5660600 Reacting lead oxide in presence of stoichiometric excess of sulfate in alkaline ph to form a reaction product, applying the product to an electrode structure and oxidizing to lead dioxide |
| 08/20/1997 | EP0587772B1 PROCESS FOR MAKING SUPERCONDUCTING Tl-Pb-Sr-Ca-Cu OXIDE FILMS AND DEVICES |
| 07/29/1997 | US5651952 Process for the production of litharge (PbO) |
| 07/29/1997 | US5651947 Recovery of zinc from sulphidic concentrates |
| 07/23/1997 | EP0784709A1 Recovery of zinc from sulphidic concentrates |
| 07/22/1997 | US5649894 Compositions and methods for waste treatment |
| 07/16/1997 | EP0664927B1 Process for making thin films by pulsed excimer laser evaporation |
| 06/24/1997 | US5641392 Electrodrift purification of materials for room temperature radiation detectors |
| 06/10/1997 | US5637352 From organometallic adduct |
| 06/05/1997 | DE19544603A1 Directly producing technical highly pure lead oxide |
| 04/10/1997 | WO1997012998A1 Battery paste recycling process |
| 03/26/1997 | EP0764137A1 Method for extracting metals from metal-containing materials by pyrohydrolysis |
| 03/19/1997 | EP0651909B1 Superconducting compositions |
| 01/14/1997 | US5593495 Method for manufacturing thin film of composite metal-oxide dielectric |
| 12/04/1996 | EP0745439A2 Process for removing heavy metals from soil |
| 12/04/1996 | EP0745438A2 Process for removing heavy metals from soil |
| 11/06/1996 | CN1135190A Method of preparing powder in plasma arc and device for carrying out said method |
| 09/04/1996 | EP0729394A1 Making quantum dot particles of uniform size |
| 08/27/1996 | US5550105 Alternate layers of perovskite and rocksalt structure contains oxides of lead, mercury, calcium, yttrium or rare earth elements and copper with or without stronsium, barium, thallium, cadmium and zinc |
| 08/21/1996 | EP0726806A1 Method of preparing a powder in a plasma arc and device for carrying out said method |
| 08/13/1996 | US5545610 Low melting point |
| 07/30/1996 | US5540915 Method for making highly oxidized lead powder used for a lead storage battery |
| 07/24/1996 | EP0682644A4 PROCESS AND APPARATUS FOR THE PRODUCTION OF LITHARGE (PbO). |
| 06/25/1996 | US5529979 Oxide superconducting material and process for preparing the same |
| 06/04/1996 | US5523066 Treatment of lead sulphide bearing minerals |
| 05/29/1996 | EP0502204B1 Oxide superconductor |
| 05/17/1996 | WO1996014438A1 Recovery of zinc from sulphidic concentrates |
| 05/14/1996 | US5516752 Thallim, bismuth and lead containing oxide superconductor |
| 04/16/1996 | US5507842 Process for converting lead and lead oxides to barium metaplumbate |
| 04/09/1996 | US5505925 Process for removing heavy metals from soil |
| 03/20/1996 | EP0701980A1 Oxide superconductor and method for manufacturing the same |
| 03/14/1996 | WO1996007475A1 Method of preparing a powder in a plasma arc and device for carrying out said method |
| 03/12/1996 | US5498594 (Hg or Pb)-Pr-Tl-Sr-Cu-O based superconductors |
| 02/27/1996 | US5494649 Leaching copper, lead and tin with methanesulfonic acid |
| 02/07/1996 | EP0695224A1 Compositions and methods for waste treatment |
| 01/30/1996 | US5487819 Production of metals from minerals |
| 01/09/1996 | US5482689 Process for the accelerated production of red lead oxide |
| 12/20/1995 | EP0687750A1 Method for manufacturing thin film of composite metal-oxide dielectric |
| 12/14/1995 | WO1995033686A1 Method for extracting metals from metal-containing materials by pyrohydrolysis |
| 11/22/1995 | EP0682644A1 PROCESS AND APPARATUS FOR THE PRODUCTION OF LITHARGE (PbO) |
| 10/10/1995 | US5457088 Heating of metal oxalate to decompose; pure copper containing superconductors |
| 09/12/1995 | US5449660 Mixed metal oxides, superconductivity |
| 08/30/1995 | EP0669668A1 Process for converting lead and lead oxides to barium metaplumbate |
| 08/22/1995 | US5444039 Having specified crystal structure |
| 08/02/1995 | EP0664927A1 Process for making thin films by pulsed excimer laser evaporation. |
| 06/28/1995 | EP0660425A1 Oxide superconducting material and process for preparing the same |
| 05/26/1995 | WO1995013891A1 Making quantum dot particles of uniform size |
| 05/26/1995 | CA2176569A1 Making quantum dot particles of uniform size |