| Patents for C25F 7 - Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating (2,484) |
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| 01/20/2000 | WO2000003426A1 Methods and apparatus for electropolishing metal interconnections on semiconductor devices |
| 01/20/2000 | DE19837973C1 Apparatus for electrochemical treatment of parts of bar-shaped workpieces in immersion bath installations |
| 01/20/2000 | CA2336851A1 Methods and apparatus for electropolishing metal interconnections on semiconductor devices |
| 01/12/2000 | EP0874921B1 Process and system for electrochemical treatment of long stretched-out items |
| 12/29/1999 | EP0967302A1 Apparatus and method for electrolytic treatment |
| 12/29/1999 | EP0966557A1 Circuitry and method for an electroplating plant or etching plant pulse power supply |
| 12/08/1999 | EP0962554A2 Electrolytic integrated polishing method for external surface of metallic tubes and photosensitive drum substrate prepared thereby |
| 12/08/1999 | EP0961842A1 Continuous chemical metal strip descaling process and device |
| 12/05/1999 | CA2273409A1 Electrolytic integrated polishing method for external surface of metallic tubes and photosensitive drum substrate prepared thereby |
| 12/01/1999 | CN1237215A Circuitry and method for electroplating plant or etching plant pulse power supply |
| 11/30/1999 | US5993637 The electrode structure is suitably used for electrolytic etching and is effective in providing an accurate etching pattern without damaging the surface of an etching object. |
| 11/11/1999 | DE19831330C1 Electrolytic etching of copper e.g. from printed circuits or circuit boards |
| 10/28/1999 | WO1999054528A1 Method for removing a hard material layer deposited on a hard metal work piece, and a fixing device for at least one work piece |
| 10/27/1999 | EP0951960A1 Method and apparatus for polishing inner surface of cylindrical portion of elongated cylindrical work and elongated cylindrical work |
| 10/26/1999 | US5972180 Apparatus for electropolishing of helix used for a microwave tube |
| 10/20/1999 | EP0874920B1 Process and device for the electrochemical treatment of items with a fluid |
| 10/12/1999 | US5964990 Device for cleaning metal surfaces |
| 10/06/1999 | EP0946794A1 Method and device for the precise electrolytic deposition and etching of metal layers on circuit boards and conductor foils in continuous systems |
| 09/30/1999 | DE19812005A1 Pulsed stream is used in the electrodialytic regeneration of process solutions in galvanic and other deposition processes |
| 09/28/1999 | US5958195 Tube inner surface electropolishing device |
| 09/28/1999 | CA2109708C Electrode for electrolyte cell, use thereof and process |
| 09/16/1999 | WO1999046431A1 Process and device for the electrolytic polishing of surgical needles |
| 08/17/1999 | US5938913 Process and device for electrolytic treatment of continuous running material |
| 08/10/1999 | US5935411 Continuous process for electropolishing surgical needles |
| 07/28/1999 | EP0931860A1 Apparatus for electrically treating ferrous and non ferrous metal wires |
| 07/22/1999 | WO1999036599A1 Semiconductor etching process and apparatus |
| 06/09/1999 | EP0580730B2 Electrode for an electrolytic cell, use thereof and method using same |
| 06/08/1999 | CA2102248C Method, device and equipment for treating the surface of metal bodies blanks, in particular, al or its alloys |
| 05/26/1999 | EP0838134B1 Procedure and device for the chemical and electrolytic treatment of printed circuit boards and films |
| 05/20/1999 | WO1999024206A1 Method and apparatus for polishing inner surface of cylindrical portion of elongated cylindrical work and elongated cylindrical work |
| 05/06/1999 | WO1999010566A3 Process chamber and method for depositing and/or removing material on a substrate |
| 05/06/1999 | DE19811210C1 Electrolytically polishing surgical needles while in electrical contact with metal strip counter-electrode |
| 05/04/1999 | US5901032 Method of producing aluminum foil for electrolytic capacitors and product thereof |
| 04/28/1999 | CN1215439A Process and device for the electrochemical treatment of items with a fluid |
| 04/27/1999 | US5897764 Process for the treatment of high-grade steel strips |
| 04/27/1999 | US5896653 Portable D.C. power electro-chemical etching tool and method |
| 04/13/1999 | US5893966 Continuously electrodepositing material on semiconductor components by retaining the components on a moving cathode immersed in electrolyte wherein wire mesh anode rotates about the moving cathode during electrodeposition |
| 03/31/1999 | EP0904428A1 An electrolytic process for cleaning electrically conducting surfaces |
| 03/23/1999 | US5885434 Measuring and storing surface topography of the workpiece during a first scan with a fine tip probe, then using the stored information to control probe position during a second scan in which an electrochemical reaction is performed |
| 03/16/1999 | US5882500 Process for demetallizing highly acid baths and use of said process for electropolishing special steel surfaces |
| 03/04/1999 | WO1999010566A2 Process chamber and method for depositing and/or removing material on a substrate |
| 02/02/1999 | US5865984 Electrochemical etching apparatus and method for spirally etching a workpiece |
| 01/20/1999 | CN1041758C Method and device for pickling of stainless steel |
| 01/12/1999 | US5858200 Method of and apparatus for manufacturing metallic fiber and the twine of metallic fibers, and method of coloring metallic fiber and the twine of metallic fibers |
| 01/07/1999 | EP0888465A1 An electrolytic process for cleaning and coating electrically conducting surfaces |
| 12/02/1998 | EP0760873B1 Electrolytic method and device for the continuous and uniform metallization or etching of metal surfaces |
| 12/01/1998 | US5843290 Electrolytic polishing apparatus |
| 11/26/1998 | WO1998053121A1 Tube inner surface electropolishing device |
| 11/18/1998 | EP0878566A1 Continuous process for electropolishing surgical needles |
| 11/17/1998 | US5837109 Apparatus for treating a strip |
| 11/05/1998 | WO1998048968A1 Method and device for electrolytic composite polishing of inner surface of long metal pipe |
| 11/04/1998 | EP0874921A1 Process and system for electrochemical treatment of long stretched-out items |
| 11/04/1998 | EP0874920A1 Process and device for the electrochemical treatment of items with a fluid |
| 10/28/1998 | EP0741804B1 Process and device for the electrolytic metal coating or etching of articles |
| 10/28/1998 | CN1197487A Device for cleaning metal surfaces after they have been worked at high temp. |
| 10/14/1998 | EP0870854A1 Method and apparatus for cleaning strips |
| 10/13/1998 | US5819400 Injection molding a polymer so it protrudes from grooves of a core member; milling portions of the polymer to expose the outer surface of core along a helical path |
| 09/09/1998 | CN1192488A Process and device for electrolytic pickling of metallic strip |
| 09/08/1998 | US5804056 Process and apparatus for producing strip products from stainless steel |
| 09/08/1998 | US5804052 Method and device for continuous uniform electrolytic metallizing or etching |
| 09/03/1998 | WO1998038357A1 Circuitry and method for an electroplating plant or etching plant pulse power supply |
| 09/03/1998 | CA2282391A1 Circuit arrangement and method for supplying pulse current to electroplating or etching systems |
| 09/02/1998 | CN2289805Y Thin-layer liquid membrance corroding device |
| 09/02/1998 | CN1191903A Electrode structure, electrolytic etching process and apparatus using same, and process for producing photo-electricity generating device |
| 08/19/1998 | EP0698133B1 A method and a device for pickling of stainless steel |
| 07/30/1998 | WO1998032899A1 Continuous chemical metal strip descaling process and device |
| 07/28/1998 | US5786556 Method and a device for pickling of stainless steel |
| 07/15/1998 | EP0852629A1 Device for cleaning metal surfaces after they have been worked at high temperatures |
| 07/02/1998 | WO1998028468A1 Method and device for the precise electrolytic deposition and etching of metal layers on circuit boards and conductor foils in continuous systems |
| 07/02/1998 | CA2275261A1 Process and appliance for precise electrolytic precipitating and etching of metal layers on printed-circuit boards and films in continuous-cycle plants |
| 07/01/1998 | EP0730678A4 Ultrasonic agitator |
| 07/01/1998 | CN1038950C Method for treating etchant |
| 06/18/1998 | DE19702639C1 Continuous chemical descaling of metal strip |
| 05/28/1998 | WO1998022953A1 Reducing radionuclide surface contamination of a metallic component |
| 04/29/1998 | EP0838542A1 Process and device for electrolytic pickling of metal strips |
| 04/29/1998 | EP0838134A1 Procedure and device for the chemical and electrolytic treatment of printed circuit boards and films |
| 04/25/1998 | CA2218765A1 Process and a device for electrolytic pickling of metallic strip |
| 04/01/1998 | EP0832315A1 Process for demetallising highly acid baths and use of said process for electropolishing special steel surfaces |
| 02/25/1998 | CN1174252A Roller-conveyed back-electrolysis process for cleaning and roughening copper surface of printed circuit board |
| 02/19/1998 | WO1998006884A1 Process and system for electrochemical treatment of long stretched-out items |
| 02/18/1998 | CN1173553A Method and apparatus for automated stripping of zinc sheets from aluminum cathode base plates |
| 02/12/1998 | DE19653272C1 Circuit board blank electroplating in continuous plant |
| 02/05/1998 | DE19707905C1 Bipolar pulsed current supply method for electroplating |
| 02/05/1998 | DE19630907A1 Apparatus for removing discolouration in weld areas of metallic workpieces |
| 02/03/1998 | US5715133 Method of producing aluminum foil for electrolytic capacitors and product thereof |
| 02/03/1998 | US5714054 Treating hydroxide sludge in a centrifuge or chamber filter press |
| 01/21/1998 | CN1170783A Process and device for electrolytic treatment of continuous running materials |
| 12/23/1997 | US5700366 Electrolytic process for cleaning and coating electrically conducting surfaces |
| 12/03/1997 | EP0810304A2 Method of and apparatus for manufacturing metallic fiber and the twine of metallic fibers, and method of coloring metallic fiber and the twine of metallic fibers |
| 11/20/1997 | DE19632132C1 Electrochemical treatment of rod-shaped components |
| 11/13/1997 | DE19717885A1 Verfahren und Vorrichtung mit zwei gleichzeitig benutzten Beobachtungskameras, welche dreidimensionale Messungen am Ort und in Echtzeit von einer komplexen Struktur auf einem Stapel dünner Schichten während einer Auftragungs- oder Abtragungsoperation gestatten Method and apparatus used simultaneously with two observation cameras, which allow three-dimensional measurements in real time at the location of a complex structure on a stack of thin films during a removal operation or APPLICATION: |
| 10/28/1997 | US5681448 Mounting semiconductor substrate and counterelectrode on facing surfaces of first and second walls, circulating etching solution to flow through region between walls, applying electric potential between substrate and electrode |
| 10/15/1997 | EP0801153A1 Process and device for the electrolytic treatment of continuously moving articles |
| 10/09/1997 | WO1997037062A1 Process and device for the electrochemical treatment of items with a fluid |
| 10/09/1997 | DE19612555A1 Verfahren zur selektiven elektrochemischen Behandlung von Leiterplatten und Vorrichtung zur Durchführung des Verfahrens Process for the selective electrochemical treatment of printed circuit boards and device for carrying out the method |
| 10/09/1997 | CA2250020A1 Method and device for the electrochemical treatment with treatment liquid of an item to be treated |
| 10/08/1997 | EP0800081A1 Method of performing fine working |
| 09/25/1997 | WO1997035052A1 An electrolytic process for cleaning electrically conducting surfaces |
| 09/25/1997 | WO1997035051A1 An electrolytic process for cleaning and coating electrically conducting surfaces |
| 09/25/1997 | WO1997035050A1 Method of treating surfaces and a suitable device |