| Patents for C25F 3 - Electrolytic etching or polishing (4,256) |
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| 05/02/1989 | US4826580 Method and apparatus for finishing cut surface of work produced by wire cut discharge process |
| 04/25/1989 | US4824757 Process for preparing positive-acting photosensitive lithographic aluminum printing plate precursor using nitric acid electrokyte for graining |
| 04/25/1989 | US4824535 Process for the electrochemical graining of aluminum for use in printing plate supports |
| 04/12/1989 | CN2035760U Electrolytic engraving device for seal |
| 04/11/1989 | CA1252415A1 Decontaminating metal surfaces with chelating solution and electrolysis |
| 03/07/1989 | US4810584 Lithium tantalum oxide coated tantalum articles with improved wear resistance and process for providing the same |
| 03/01/1989 | EP0304740A2 Processing grain oriented electrical steel |
| 02/21/1989 | US4806216 Compact tension test specimens |
| 01/04/1989 | EP0297659A1 Piston rings |
| 11/30/1988 | EP0292801A2 Process for the electrochemical graining of aluminium for supports for printing plates |
| 11/30/1988 | CN88102785A Method of electrolytic treatment of metals |
| 11/23/1988 | EP0291760A2 Printing plate supports and process and apparatus for their manufacture |
| 11/22/1988 | US4786381 Anodizing |
| 11/22/1988 | US4786362 Surface treatment, different aluminum alloys |
| 11/09/1988 | EP0289844A2 Support material and process for its manufacture |
| 11/02/1988 | EP0289168A1 Electrolytic treatment |
| 11/01/1988 | CA1243981A1 Process for producing aluminum support for lithographic printing plate |
| 10/11/1988 | US4776933 Dividing electrolyte stream, flowing of anodic stream along surface |
| 09/20/1988 | US4772367 Apparatus for and a method of electrochemically polishing pipe inside surfaces |
| 08/31/1988 | CN87217198U Etching head for deep electrolytic etch marking |
| 08/23/1988 | CA1240951A1 Printing plates made of mechanically and electrochemically roughened aluminum |
| 08/10/1988 | EP0277495A1 Process for making decorative or informative patterns on objects made of metal sheets with one or possibly several coatings |
| 08/02/1988 | US4761210 Superimposing masks, selective etching |
| 08/02/1988 | CA1239900A1 Two-stage electrolytic etching of aluminium capacitor foil |
| 06/01/1988 | EP0268790A2 Process for electrochemically modifying support materials of aluminum or aluminum alloys, which have been grained in a multi-stage process and use of these materials in the manufacture of offset-printing plates |
| 05/25/1988 | EP0268058A2 Process for the electrochemical graining of aluminum or its alloys for supports for printing plates |
| 05/24/1988 | US4746591 Electrochemically graining with hydrochloric acid, nitric acid |
| 05/10/1988 | CA1236383A1 Etching of aluminum electrolytic capacitor foil |
| 05/03/1988 | US4741812 Aqueous hydrochloric acid; alternating current |
| 04/26/1988 | US4740280 Bath contains phosphoric and sulfuric acid and chelating agent |
| 04/19/1988 | CA1235383A1 Electrolytically treating metal web with asymmetric alternating current |
| 04/19/1988 | CA1235380A1 Etching, electrochemically graining, and anodizing aluminum plate |
| 04/05/1988 | US4735696 Method of electrolytically graining aluminum metal sheets suitable for lithographic plate supports |
| 04/05/1988 | US4735695 Controlling fluid flow |
| 03/31/1988 | DE3633215A1 Containers for storing pressurised gas - have electro:polished inner surfaces to avoid desorption processes |
| 03/30/1988 | CN87103891A Electro-chemical corrosion of circular silicon cup |
| 03/29/1988 | US4734174 Electrochemical formation of thin-film electrodes |
| 02/09/1988 | CA1232568A1 Process for fabricating an optical device |
| 02/03/1988 | CN85102657B Electrical polishing process of surface of cu-zn alloy |
| 02/02/1988 | US4722771 Process for manufacturing a partially permeable membrane |
| 01/26/1988 | US4721552 Two-step method for electrolytically graining lithographic metal plates |
| 01/20/1988 | EP0253420A1 Apparatus and process for electrochemical etching of silicon |
| 01/19/1988 | US4719693 Resistance element for wound-type variable resistors and method of making same |
| 01/05/1988 | US4717455 Process for manufacturing a microfilter |
| 12/29/1987 | CA1230845A1 Process and apparatus for treating sodium-nitrate- containing electrolytes in electrochemical cleaning |
| 12/23/1987 | EP0249650A1 Electrolyte for electrochemically polishing metal surfaces |
| 12/08/1987 | US4711706 Masking, electrochemically polishing |
| 12/08/1987 | CA1230077A1 Tungsten-quartz seals |
| 12/02/1987 | EP0247209A1 Apparatus and process for electrochemically polishing the inner surfaces of pipes |
| 12/01/1987 | US4710279 Aqueous phosphoric and sulfuric acids with stabilizers |
| 11/25/1987 | EP0246557A1 Internal surfaces of a gas bottle, and process for their manufacture |
| 10/28/1987 | EP0242421A1 Method and apparatus for electrochemical polishing and pickling |
| 09/29/1987 | USRE32512 Method for producing foil electrodes for electrolytic capacitor |
| 09/17/1987 | DE3608604A1 Patternable photoelectrochemical removal |
| 09/16/1987 | CN86108075A Method of electrochemical machining bladed rotors |
| 09/09/1987 | EP0235983A1 Method and apparatus for finishing cut surface of a workpiece produced by wire cut discharge process |
| 08/11/1987 | US4686020 Method of electrochemical machining bladed rotors |
| 08/04/1987 | CA1225065A1 Process for electrochemically roughening aluminum for printing plate supports |
| 07/21/1987 | US4681672 Method for etching electrode foils for an aluminium electrolytic capacitor |
| 07/14/1987 | CA1224181A1 Electrolytic graining of aluminium in nitric acid and oxalic acid mixture |
| 07/07/1987 | US4678546 Process for providing lithium tantalum oxide coated tantalum articles with improved wear resistance |
| 07/01/1987 | EP0227226A2 Method of electrochemical machining bladed rotors |
| 07/01/1987 | EP0227223A2 Electrolyte chamber with cathode sealing means for ECM machining |
| 06/30/1987 | US4676879 Method for the production of an aluminum foil for electrolytic _capacitors, and electrolytic capacitors thus produced |
| 06/30/1987 | US4676833 Method for reproducing composition of electrolytic polishing solution for niobium material |
| 06/24/1987 | CN85108872A Stainless steel simultaneously double-color coloring method |
| 06/09/1987 | US4671859 Process for the electrochemical graining of aluminum for use as printing plate supports |
| 06/09/1987 | US4671858 Method for making anode foil for an aluminum electrolytic capacitor |
| 06/03/1987 | EP0224444A1 Process for manufacturing a partially permeable membrane |
| 06/03/1987 | EP0224443A1 Process for manufacturing a micro filter |
| 05/19/1987 | US4666576 Process for the electrochemical roughening of aluminum for use in printing plate supports |
| 05/12/1987 | US4664762 Method for etching a silicon substrate |
| 05/05/1987 | US4663005 Electropolishing process |
| 04/28/1987 | US4661219 Process for the electrochemical roughening of aluminum for use in printing plate supports |
| 04/08/1987 | EP0217071A1 Process for producing micromechanical structures |
| 04/07/1987 | US4655136 Aluminum or alloy thereof |
| 03/25/1987 | EP0215422A1 Process for electrochemically roughening aluminium for printing plate supports |
| 03/10/1987 | US4648950 CR-39 track etching and blow-up method |
| 02/24/1987 | US4645581 Nuclear power reactors |
| 02/10/1987 | US4642168 Electrolytic etching |
| 01/24/1987 | CN85101448A Process for electrochemical roughening of aluminum used as printing plate supports in an aqueous mixed electrolyte |
| 01/13/1987 | US4636285 Method of manufacturing wear resistant sliding member |
| 01/10/1987 | CN85101992A Electro-chemical corrosion of high voltage aluminium anode foil |
| 01/10/1987 | CN85101035A Two-step electrochemical etching method of high voltage aluminium anode foil |
| 01/10/1987 | CN85101034A Two-step electrochemical and chemical etching method of high voltage aluminium anode foil |
| 01/06/1987 | US4634826 Method for producing electric circuits in a thin layer, the tool to implement the method, and products obtained therefrom |
| 12/30/1986 | US4632740 Electropolishing; phosporic acid electrolyte; filtration |
| 12/16/1986 | US4629539 Metal layer patterning method |
| 12/02/1986 | US4626328 Process for the electrochemical roughening of aluminum for use as printing plate supports, in an aqueous mixed electrolyte |
| 11/26/1986 | EP0202870A1 Apparatus and method for anodic treatment |
| 11/26/1986 | EP0202345A2 Process for manufacturing an aluminium foil for electrolytic capacitors and electrolytic capacitors made of the foils so manufactured |
| 11/11/1986 | US4622114 Process of producing devices with photoelectrochemically produced gratings |
| 11/05/1986 | CN86101687A Resistance element for wound-type variable resistors and method of making same |
| 11/04/1986 | CA1213560A1 Ac etching of aluminum capacitor foil |
| 10/28/1986 | US4619742 Process for the simultaneous graining and chromium-plating of steel plates as supports for lithographic applications |
| 10/28/1986 | CA1213244A1 Electrochemically etching and friction plating cast iron work piece containing carbon |
| 10/21/1986 | US4618405 Process for the electrochemical roughening of aluminum for use as printing plate supports, in an aqueous mixed electrolyte |
| 10/01/1986 | EP0196093A1 A process for treating an article made of metal selectec from tantalum, niobium and tantalum-niobium alloy |
| 09/30/1986 | US4614571 Process for electrochemically graining steel plates used as offset printing plate supports, and an electrolyte solution suitable for the process |
| 09/30/1986 | US4614570 Single-stage electrochemical image-forming process for reproduction layers |