| Patents for C25F 3 - Electrolytic etching or polishing (4,256) |
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| 03/27/1979 | US4146440 Method for forming an aluminum interconnect structure on an integrated circuit chip |
| 03/27/1979 | CA1051371A1 Direct-on ceramic coating of carbon-rich iron |
| 03/27/1979 | CA1051370A1 Method and apparatus for incremental electro-processing of large areas |
| 03/13/1979 | CA1050479A1 Method for treating aluminium and aluminium alloy surfaces in order to obtain a "lezard-like-finish" |
| 03/06/1979 | US4142953 Semiconductor etching |
| 02/20/1979 | US4140599 Etching with hydrochloric acid and chromium trioxide |
| 02/20/1979 | US4140598 Electrolytic operation and abrasive polishing with fabrics or powders |
| 02/20/1979 | US4140597 Method of recovering the component metals from sintered metal carbides |
| 01/23/1979 | US4135989 Electrolytic etching of tin oxide films |
| 01/02/1979 | US4132618 Electrolytic device for marking metallic parts |
| 12/26/1978 | US4131525 Method of manufacturing a body having a gold pattern and body manufactured according to the method |
| 12/26/1978 | US4131523 Method of electrochemically processing metallic surfaces |
| 12/05/1978 | US4128463 Method for stripping tungsten carbide from titanium or titanium alloy substrates |
| 11/28/1978 | US4127459 Method and apparatus for incremental electro-polishing |
| 11/14/1978 | US4125444 Electrochemical polishing method |
| 11/07/1978 | CA1041942A1 Etching aluminium foil with subsequent application of powdered aluminium |
| 10/31/1978 | US4123337 Method of improving the surface insulation resistance of electrical steels having an insulative coating thereon |
| 10/24/1978 | US4121979 Metal treatment |
| 10/10/1978 | US4119514 Production of perforated metal foil |
| 10/03/1978 | US4118301 Apparatus for electrochemical finishing of stainless steel |
| 09/19/1978 | US4115223 Annealing |
| 07/11/1978 | US4100044 Procedure for removing aluminum from an Al-Al3 Ni two-phase matrix |
| 07/04/1978 | US4098659 Electrochemical milling process to prevent localized heating |
| 05/30/1978 | US4092445 Process for forming porous semiconductor region using electrolyte without electrical source |
| 04/04/1978 | US4082638 Apparatus for incremental electro-processing of large areas |
| 04/04/1978 | US4082632 Production of perforated metal foil |
| 03/14/1978 | US4078980 Electrolytic chromium etching of chromium-layered semiconductor |
| 02/07/1978 | US4072589 Process for electrolytic graining of aluminum sheet |
| 02/07/1978 | US4072588 Method for the anodic polishing of surfaces of intermetallic niobium compounds and niobium alloys |
| 01/17/1978 | US4069121 Method for producing microscopic passages in a semiconductor body for electron-multiplication applications |
| 01/10/1978 | US4068025 Roughening surface of eutectic or near eutectic alloy |
| 01/10/1978 | US4067790 Method of electrolytically marking metallic articles |
| 11/29/1977 | US4060467 Electrolytic machining system |
| 10/04/1977 | US4052275 Hydrochloric and tartaric acid |
| 08/30/1977 | US4045312 Method for the electrolytic etching of metal workpiece |
| 08/30/1977 | US4045311 Process for making a minute hole |
| 08/02/1977 | US4039410 Electrocleaning process |
| 07/12/1977 | US4035209 Method of preventing deterioration by heat |
| 05/31/1977 | US4026737 Method for coloring a stainless steel |
| 03/29/1977 | US4014765 Method for the electrolytic polishing of the inside surface hollow niobium bodies |
| 02/08/1977 | US4007099 Cathodic production of micropores in chromium |
| 01/04/1977 | US4001094 Method for incremental electro-processing of large areas |
| 12/07/1976 | US3996119 Method for electrolytic etching of gray irons with Stead's reagent |
| 09/14/1976 | US3980539 Process for electrolytic graining of aluminum |
| 08/31/1976 | US3978253 Rough surface, alloys |
| 08/10/1976 | US3974050 Method of and apparatus for processing the surface of bodies |
| 07/27/1976 | US3971120 Direct-on ceramic coating of carbon-rich iron |
| 07/20/1976 | US3970529 Phosphoric acid, polyether |
| 06/15/1976 | US3963594 Electrochemical treatment of aluminum surfaces with an aqueous solution of hydrochloric acid and gluconic acid |
| 06/15/1976 | US3962834 Method of producing a pitted, porous electrodeposited chromium coating |
| 06/01/1976 | US3960675 Method for deplating and replating rotogravure cylinders |
| 05/25/1976 | US3959098 Electrolytic etching of III - V compound semiconductors |
| 04/06/1976 | US3949254 Winding for dynamoelectric machine |
| 03/23/1976 | US3945893 Electrodeposition of a metal coating and hard particles protruding therefrom |
| 03/09/1976 | US3943043 Apparatus for or selective dissolution or detection of predetermined metals |
| 01/27/1976 | US3935080 Graining, cleaning, anodizing |