| Patents for C25D 11 - Electrolytic coating by surface reaction, i.e. forming conversion layers (8,800) |
|---|
| 04/07/1992 | US5102746 For use in automobiles and appliances |
| 04/07/1992 | US5102508 Method of producing colored surfaces on parts of aluminum or aluminum alloy |
| 04/07/1992 | US5102507 Method of making an anodic phosphate ester duplex coating on a valve metal surface |
| 04/01/1992 | CN1059941A Method for proparing high-purity propylone carbonate and for simultaneously making passivated electrodes |
| 04/01/1992 | CN1016080B Aluminium or aluminium alloy anode oxide film electrolytic colouring technology |
| 03/17/1992 | US5096546 Process for treating surface of copper foil |
| 03/17/1992 | US5095930 Process for the uniform introduction of a fluid, and apparatus for carrying out the process |
| 03/12/1992 | DE4028708A1 Verfahren zur herstellung von hochreinem propylencarbonat und zur gleichzeitigen herstellung von passivierten elektroden Process for the preparation of high-purity propylene carbonate and the simultaneous production of passivated electrodes |
| 03/11/1992 | WO1992004340A1 Process for making highly pure propylene carbonate and the simultaneous production of passivated electrodes |
| 03/11/1992 | CA2091348A1 Method for preparing high-purity propylene carbonate and for simultaneously making passivated electrodes |
| 03/10/1992 | US5094727 Potassium dihydrogen phosphate, acetate, potassium chromate, ammonium citrate, ethylenediamine, anodizing |
| 03/03/1992 | US5093178 Anodizing, heat treatment; gases; multichannel; heat exchangers, catalyst supports |
| 03/03/1992 | CA1296815C Aluminum alloy semiconductor packages |
| 02/25/1992 | US5091609 Insulated wire |
| 02/25/1992 | US5091062 Web barrier packaging material |
| 02/25/1992 | US5091061 Silicon substrate having porous oxidized silicon layers and its production method |
| 02/18/1992 | WO1992003846A1 Anodized aluminum electronic package components |
| 02/18/1992 | US5089092 Controlling diameters of pores by changing electrolysis voltage |
| 02/18/1992 | CA2088165A1 Anodized aluminum electronic package components |
| 02/12/1992 | EP0470281A1 Process for the manufacture of multicoloured surfaces on parts made of aluminium or aluminium alloys, particularly mouldings |
| 02/11/1992 | US5087330 Anodizing aluminum substrate, changing voltage to form pores of different sizes |
| 01/30/1992 | DE4024352A1 Electrochemical surface treatment of fibrous materials - obtd. by feeding fibre or strand in electrolysis bath through counter electrode and region of lower field strength |
| 01/28/1992 | US5084143 Masking a surface followed by anodizing to form an anodic film on a metal |
| 01/23/1992 | WO1992000891A1 Closure with irreversible color change system |
| 01/22/1992 | EP0467858A2 Improvement for processes for continuous coating of metal surfaces with chromium metal and chromium oxide |
| 01/22/1992 | EP0467487A1 A method of producing an electrode foil for use in aluminum electrolytic capacitors |
| 01/07/1992 | US5078845 Process for preparing an electrode foil for use in aluminum electrolytic capacitors |
| 01/07/1992 | US5078844 Method for forming tough, electrical insulating layer on surface of copper material |
| 12/31/1991 | US5077114 Heat resistant nondeforming membrane for filtering exhaust gases, microorganisms dialysis |
| 12/27/1991 | EP0462371A2 Electrolytic treatment apparatus and method for continuously electrolyzing aluminium products |
| 12/26/1991 | WO1991019836A1 Method for treating the surface of steel |
| 12/24/1991 | US5075178 Black surface layer on light metal |
| 12/24/1991 | US5074972 Surface treatment of ti or ti alloy parts for enhancing adhesion to organic material |
| 12/21/1991 | WO1991019649A1 Color change devices activatable by bending |
| 12/18/1991 | EP0462073A2 Electrolyte for producing thin black conversion layers on light metals |
| 12/17/1991 | US5073403 Aluminum-plated steel sheet for cans |
| 12/11/1991 | EP0460701A1 A method of forming a corrosion-resistant protective coating on aluminum substrate |
| 12/11/1991 | EP0460700A1 Corrosion-resistant protective coating on aluminum substrate or surface and method of forming same |
| 12/03/1991 | US5069938 Method of forming a corrosion-resistant protective coating on aluminum substrate |
| 11/26/1991 | US5068032 System for fixing anodized aluminum |
| 11/19/1991 | US5066368 Process for producing black integrally colored anodized aluminum components |
| 11/17/1991 | CA2023203A1 Method of protecting an aluminum surface |
| 11/12/1991 | US5064512 Process for dyeing anodized aluminum |
| 11/12/1991 | CA1291962C2 Anodizing and press-lubricating aluminum sheet |
| 11/05/1991 | US5062928 Process for producing color change devices incorporating latent indicia and the resulting devices |
| 10/29/1991 | US5061575 Lubricating resin coated steel strips having improved formability and corrosion resistance |
| 10/29/1991 | US5061544 Differentiation in pore size; dimensional stability upon heat treatment; used as separation membrane |
| 10/23/1991 | EP0453374A2 Improved corrosion-resistant surface coated steel sheet |
| 10/23/1991 | EP0452954A2 Surface treatment apparatus for printing plate support |
| 10/23/1991 | EP0452345A1 Process for impregnating anodized aluminium surfaces |
| 10/18/1991 | WO1991016701A1 Process for producing colour change devices incorporating latent indicia and the resulting devices |
| 10/18/1991 | CA2071987A1 Process for producing colour change devices incorporating latent indicia and the resulting devices |
| 10/09/1991 | EP0450140A1 Method for forming an abrasion-resistant white oxidized surface film of high opacity on an aluminium substrate |
| 10/08/1991 | US5055356 Chelate compound |
| 09/25/1991 | EP0448040A2 Manufacturing method of hydrogenocclusion alloy electrode |
| 09/17/1991 | US5049245 Method for producing resin-coated rust-proof steel sheets with properties suitable for electrodeposition coating |
| 08/07/1991 | EP0439911A1 Low temperature corrosion resistance improvement in anodized aluminum |
| 08/02/1991 | CA2009212A1 Bilayer oxide film and process for producing same |
| 07/31/1991 | EP0438444A1 Aluminum alloy semiconductor packages. |
| 07/30/1991 | US5035781 Electrolyte for the production of black surface layers on light metals |
| 07/18/1991 | DE4000821A1 Improving corrosion resistance of anodised aluminium die cast parts - by sealing in chromate bath followed by hot water bath |
| 07/16/1991 | US5032244 Anodizing, protective heat resistant coating |
| 07/16/1991 | US5032237 Anodic phosphonic/phosphinic acid duplex coating on valve metal surface |
| 07/16/1991 | US5032236 Electrolysis, oxidation, protective coating |
| 07/09/1991 | US5030331 Evaporating iridium and carbon by electron beam or sputtering, heating composite film in oxidizing atmosphere, electrolytic oxidation by alternating potential in aqueous solution |
| 07/09/1991 | US5029598 Process for the uniform introduction of a fluid, and apparatus for carrying out the process |
| 07/02/1991 | US5029149 Jewelry |
| 06/26/1991 | EP0434480A1 Process of electrochemical treatment of oxide materials |
| 06/26/1991 | EP0433816A1 Process and device for the preparation of a solution of a non-ferrous metal sulphonate |
| 06/11/1991 | US5023146 Black surface-treated steel sheet |
| 06/05/1991 | EP0429656A1 Method of surface treatment of aluminum or its alloy |
| 06/05/1991 | EP0204846B1 Method of manufacturing colored stainless steel materials and apparatus for continuously manufacturing same |
| 06/04/1991 | US5021104 Steel strip for food packaging and process for production thereof |
| 05/07/1991 | US5013410 Method of manufacturing an aluminum-plated steel sheet for cans |
| 04/25/1991 | DE3934681A1 Anodising strip material - using bath with three vertical electrodes with strip passing between them in vertical loop |
| 04/24/1991 | EP0424072A1 Cookware |
| 04/24/1991 | CN1050911A Aluminium or aluminium alloy anode oxide film electrolytic colouring technology |
| 04/23/1991 | US5009756 Chemical method of avoiding a rainbow effect caused by the layer of oxide produced upon the brightening of parts of aluminum or aluminum alloys |
| 04/23/1991 | US5009722 Process for producing base material for an aluminum offset printing plate |
| 04/18/1991 | WO1991004785A1 Porous membranes suitable for separation devices and other uses |
| 04/09/1991 | US5006420 Electroplated steel sheet having a plurality of coatings, excellent in workability, corrosion resistance and water-resistant paint adhesivity |
| 03/26/1991 | US5002838 Aluminum plating substance for anodizing |
| 03/26/1991 | US5002640 Process for the production of nitrides suitable for ceramic materials |
| 03/21/1991 | WO1991003583A1 Methods for depositing finish coatings on substrates of anodisable metals and the products thereof |
| 03/20/1991 | EP0417880A1 Process for treating surface of copper foil |
| 03/12/1991 | US4999258 Zinc-Tin Alloy Coating; Cans |
| 03/07/1991 | WO1991002830A1 Improved electrolytic method for coloring anodized aluminum |
| 03/06/1991 | CN1049687A Object capped by protective layer |
| 03/05/1991 | US4997530 Coating substrates |
| 03/05/1991 | US4997529 Electrolytic process and apparatus for forming pattern on surface of metallic object |
| 02/27/1991 | EP0414025A1 Piece coated with a protective layer |
| 02/26/1991 | US4995951 Brightening method |
| 02/20/1991 | EP0413589A1 Improved electrolytic method for colouring anodized aluminium |
| 02/19/1991 | US4994314 Color change devices incorporating thin anodic films |
| 02/18/1991 | CA2023502A1 Electrolytic method for coloring anodized aluminum |
| 02/13/1991 | EP0412735A1 Welded can body |
| 02/12/1991 | US4992155 Circuitry for the electrolytic coloring of anodized aluminum surfaces |
| 02/12/1991 | CA1280085C Surface treated steel sheet for welded can material and method for its production |
| 02/05/1991 | CA1279842C Method of fabricating structures from aluminium sheet and structures comprising aluminium components |
| 01/30/1991 | EP0410003A1 Insulated electric wire |