| Patents for C25D 11 - Electrolytic coating by surface reaction, i.e. forming conversion layers (8,800) |
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| 04/11/1990 | EP0362535A1 Aluminum plating substance for anodizing |
| 04/11/1990 | EP0362240A1 Controlling processes for the electrolytic recovery of metals |
| 04/10/1990 | US4915801 Process for the electrolytic coloring of anodized aluminum surfaces |
| 04/10/1990 | US4915799 Electrolytic coloring method for chromium alloy |
| 04/10/1990 | US4915798 Corrosion resistant aluminum product with uniformly grey, light-fast surface and process for its manufacture |
| 04/05/1990 | CA2000045A1 Treating porous anodic aluminium oxide membrane |
| 04/03/1990 | CA2000056A1 Porous anodic aluminium oxide membranes |
| 03/21/1990 | CN1040633A Method of reducing weight loss of lead and lead-alloy anodes in chromium electroplating bath |
| 03/20/1990 | US4910097 Zinc alloy-plated corrosion preventive steel sheet having an organic coating layer thereon and a method for making the same |
| 03/07/1990 | EP0357326A2 Inhibiting corrosion of lead or lead-alloy anodes in a chromium electroplating bath |
| 03/07/1990 | EP0357219A1 Aluminium and aluminium alloy having corrosion-resistant protective layer, and methods of making such a layer |
| 03/07/1990 | EP0165318B1 Process for producing anode foil for use in electrolytic aluminum capacitor |
| 03/06/1990 | US4907130 Method for the fabrication of aluminium electrolytic capacitors, and capacitor with integrated anode obtained thereby |
| 03/06/1990 | US4906533 Aluminum-plated steel sheet for cans |
| 02/28/1990 | EP0355390A1 Process for the adsorptive colouring of anodically obtained surfaces |
| 02/27/1990 | US4904353 Sunshades |
| 02/27/1990 | US4904349 Methods for producing optomagnetic recording media and systems for their use |
| 02/27/1990 | CA1266251A1 Formation of aluminium oxide film by anodization, voltage reduction and separation |
| 02/20/1990 | US4902387 Chromate-treated zinc-plated steel strip and method for making |
| 02/14/1990 | EP0354365A1 Process for electrolytically colouring anodised aluminium surfaces with metal salts |
| 02/14/1990 | CN1039677A Process for continuously enamelling wire of aluminium alloy which are intended for production of electrical coils |
| 02/08/1990 | WO1990001079A1 A process for the adsorptive colouring of anodically produced surfaces |
| 02/07/1990 | EP0354132A1 Process for continuously enamelling pieces made of an aluminium alloy for making electrical windings |
| 02/07/1990 | CN1039452A Process for colouring anodisation-treated aluminium surface by electrolysis of metall salt |
| 02/07/1990 | CN1006694B Surface treated steel strip having improved weldability and process for making |
| 02/06/1990 | US4898651 Anodic coatings on aluminum for circuit packaging |
| 02/06/1990 | US4898649 Method for manufacturing electrolytically chromated steel sheet |
| 01/31/1990 | EP0352808A2 Multi-layered steel sheets |
| 01/24/1990 | EP0351680A1 Use of p-toluene sulfonic acid in the electrolytic colouring of anodically obtained aluminium surfaces |
| 01/23/1990 | US4895627 Ion exchange membrane |
| 01/17/1990 | EP0351110A1 Method of manifacturing a cold cathode, field emission device and a field emission device manufactured by the method |
| 01/16/1990 | US4894127 Method for anodizing aluminum |
| 01/16/1990 | US4894126 Anodic coatings on aluminum for circuit packaging |
| 01/10/1990 | EP0350108A1 A method of improving the capacitance of anodized aluminum foil |
| 01/09/1990 | US4892630 Process for the passivating anodization of copper in a medium of molten fluorides, and use for the protection of copper parts of fluorine electrolysers |
| 01/09/1990 | US4892629 Electrochemical preparation of silver oxide electrodes having high thermal stability |
| 01/02/1990 | US4891273 Automobile bodies |
| 01/02/1990 | US4891103 Uniform porosity in semiconductors |
| 12/27/1989 | EP0347663A1 Method for sealing-in anodised films on aluminium and aluminium alloys |
| 12/26/1989 | US4889631 Anodic aluminium oxide membranes |
| 12/20/1989 | EP0346935A2 Ink jet recording head and process for preparing a substrate for a recording head |
| 12/20/1989 | CN1038132A Aluminium or aluminium alloy wide temp. range high-speed oxidation technique |
| 12/12/1989 | US4886712 Coated with semiconducting oxide on inner surface |
| 12/06/1989 | EP0344717A2 Lubricating resin coated steel strips having improved formability and corrosion resistance |
| 12/06/1989 | EP0144329B1 Protective coating process for aluminum and aluminum alloys |
| 11/23/1989 | EP0342585A1 Coated steel sheets and process for producing the same |
| 11/21/1989 | US4882237 Aluminum-ceramic complex material |
| 11/21/1989 | US4882016 In-situ surface treatment containment apparatus and method |
| 11/16/1989 | WO1989010986A1 In-situ surface treatment containment apparatus and method |
| 11/08/1989 | EP0340733A1 In-situ surface treatment containment apparatus and method |
| 11/07/1989 | US4879018 Inherent capacitance shunt |
| 11/02/1989 | EP0339578A1 Method for producing black colored steel strip |
| 10/31/1989 | US4877495 Electrolytic coloring of anodized aluminum |
| 10/24/1989 | US4876160 Blend of bisphenol epoxy resin and polyisocyanate curing agent |
| 10/24/1989 | US4875984 Using chromic anhydride, chromate, and bichromate solution to form chromic oxide coating with granular projections |
| 10/24/1989 | US4875983 Process for continuous electrodeposition of chromium metal and chromium oxide on metal surfaces |
| 10/17/1989 | US4874480 Zinc phosphate coating by electrolysis |
| 10/17/1989 | CA1262354A1 Improved sealing process and sealing agents for aluminum |
| 10/11/1989 | CN1005420B Stainless steel coating with double color by single coloration |
| 10/10/1989 | US4873047 Wetting with phosphoric acid before rolling to desired shapes, then drying |
| 10/05/1989 | WO1989009186A1 Flow divider |
| 09/26/1989 | US4869789 Electrochemistry, plasma arc |
| 09/21/1989 | WO1989008730A1 PROCESS FOR PRODUCING Zn-Ni ALLOY-PLATED STEEL SHEET HAVING EXCELLENT PRESS MOLDABILITY |
| 09/20/1989 | EP0333049A1 Method for finishing magnesium and magnesium alloys |
| 09/20/1989 | EP0333048A1 Method for producing corrosion and wear resistant protective coatings on magnesium and magnesium alloys |
| 09/20/1989 | EP0332872A2 Method for manufacturing electrolytically chromated steel sheet |
| 09/13/1989 | EP0332115A1 Process for manufacturing nitrides suitable for ceramic materials |
| 09/12/1989 | US4865951 Bilayered anodized aluminum support, method for the preparation thereof and lithographic printing plate containing same |
| 09/12/1989 | US4865699 Preventing flow of current after anodizing by changing web polarity from positive to negative |
| 09/06/1989 | EP0330921A2 Method for manufacturing electrolytically chromated steel sheet |
| 09/05/1989 | US4863880 InSb device manufacturing by anodic oxidation |
| 08/29/1989 | US4861440 Electrolytic formation of an aluminum oxide surface |
| 08/29/1989 | US4861439 Method of improving the capacitance of anodized aluminum foil |
| 08/29/1989 | CA1258819A1 Nickel sulfate coloring process for anodized aluminum |
| 08/23/1989 | EP0329270A1 Method of forming a molybdenum-containing phosphate surface-coating material |
| 08/22/1989 | US4859288 Porous anodic aluminum oxide films |
| 08/22/1989 | US4859287 Method for producing colored stainless steel stock |
| 08/10/1989 | WO1989007161A1 Preparation of superconducting oxides by electrochemical oxidation: anodic superconductors |
| 08/08/1989 | CA1258249A1 Process for sealing anodically oxidised aluminium or aluminium alloy surfaces |
| 08/01/1989 | US4853093 Aluminum or an aluminum alloy support material for use in offset printing plates |
| 07/26/1989 | EP0325097A1 Chemical polishing bath and method for aluminum alloys |
| 07/19/1989 | EP0324325A1 Anodic coatings on aluminum for circuit packaging |
| 07/19/1989 | EP0135591B1 Method for determining superior lacquer adhesion properties of a tin-free steel sheet |
| 07/11/1989 | US4847166 Automobiles; aluminum alloys, iron plates |
| 07/11/1989 | CA1257055A1 Sealant compositions for anodized aluminum |
| 07/04/1989 | US4844781 Carbon fibers embedded in a matrix of synthetic resin |
| 06/28/1989 | EP0321536A1 Process for passivating anodization of copper in a molten fluoride medium, and application to the protection of copper parts of fluorine electrolyzers. |
| 06/27/1989 | US4842958 Chromate surface treated steel sheet |
| 06/22/1989 | DE3741456A1 Method for the electrolytic colouring of anodically generated oxide layers on aluminium and aluminium alloys |
| 06/21/1989 | EP0320952A2 Process for the electrolytic colouring of anodically obtained oxide layers on aluminium or aluminium alloys |
| 06/20/1989 | US4840709 Single-stage electrochemical image-forming process for reproduction layers |
| 06/20/1989 | CA1256057A1 Process for electrolytic treatment of metal by liquid power feeding |
| 06/20/1989 | CA1256054A1 Process for preparation of highly anticorrosive surface-treated steel plate |
| 06/15/1989 | DE3741292A1 Process for producing hard multi-ply layers |
| 06/14/1989 | EP0319908A2 Aluminum-plated steel sheet for cans |
| 06/13/1989 | US4839006 Surface treatment process for carbon fibers |
| 06/13/1989 | US4839002 Intermittent power supply and automatic switchable shunt discharger |
| 06/07/1989 | EP0318820A2 Process for anodising surfaces of aluminium or aluminium alloys |
| 05/31/1989 | EP0318403A1 Process for continuously anodising strips of aluminium or its alloys which are to be provided with an organic coating |
| 05/30/1989 | US4834844 Process for the selective additive correction of voids in copying layers |