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Class Information
Number: 204/234
Name: Chemistry: electrical and wave energy > Apparatus > Electrolytic > Cells with electrolyte treatment means > Leacher, dissolver or extractor > Recirculation
Description: Apparatus including means to recirculate the electrolyte.


Sub-classes under this class:

Class Number Class Name Patents
204/235 With filter 16
204/236 With heater or cooler 11


Patents under this class:

Patent Number Title Of Patent Date Issued
7449091 Wafer electroplating apparatus Nov. 11, 2008
7416647 Plating processing device Aug. 26, 2008
7279079 Plating apparatus, cartridge and copper dissolution tank for use in the plating apparatus, and plating method Oct. 9, 2007
7160430 Electrochemical treatment of ammonia in waste-water Jan. 9, 2007
7067048 Method to improve the control of electro-polishing by use of a plating electrode an electrolyte bath Jun. 27, 2006
7033480 Process for recovering platinum group metals from material containing base metals Apr. 25, 2006
6899803 Method and device for the regulation of the concentration of metal ions in an electrolyte and use thereof May. 31, 2005
6402909 Plating system with shielded secondary anode for semiconductor manufacturing Jun. 11, 2002
6350362 Method and device for regulating the concentration of substances in electrolytes Feb. 26, 2002
6350354 Modular solvent extraction plant Feb. 26, 2002
5656140 Electrochemical reclamation of heavy metals from natural materials such as soil Aug. 12, 1997
5569370 Electrochemical system for recovery of metals from their compounds Oct. 29, 1996
5536378 Apparatus for manufacture of oxygen from lunar ilmenite Jul. 16, 1996
5378324 Process and an electrolytic cell for the production of fluorine Jan. 3, 1995
5362368 Chlorine generator Nov. 8, 1994
5308464 Low temperature tin-bismuth electroplating system May. 3, 1994
RE34191 Process for electroplating metals Mar. 9, 1993
5133846 Silver recovery device Jul. 28, 1992
5118402 Electrolytic silver recovery system for recovering silver from photographic fixing solutions Jun. 2, 1992
5094734 Water treatment unit Mar. 10, 1992
4948476 Hybrid chromium recovery process Aug. 14, 1990
4906340 Process for electroplating metals Mar. 6, 1990
4859293 Process for refining gold and apparatus employed therefor Aug. 22, 1989
4789439 Method of electrolytic tinning using an insoluble anode Dec. 6, 1988
4663085 Apparatus for decontamination of radiation contaminated metallic waste May. 5, 1987
H36 Electroplating process with inert anodes Mar. 4, 1986
4432856 Apparatus for manufacturing chlorine dioxide Feb. 21, 1984
4340451 Method of replenishing gold/in plating baths Jul. 20, 1982
4310403 Apparatus for electrolytically treating a metal strip Jan. 12, 1982
4290856 Electroplating apparatus and method Sep. 22, 1981
4181580 Process for electro-tin plating Jan. 1, 1980
4162955 Electrodeposition coating apparatus Jul. 31, 1979
4098667 Electrochemical method and device for producing oxygen Jul. 4, 1978
4073708 Apparatus and method for regeneration of chromosulfuric acid etchants Feb. 14, 1978
4071415 Method of electroplating aluminum and its alloys Jan. 31, 1978
4054503 Portable metal recovery apparatus Oct. 18, 1977
4045304 High speed nickel plating method using insoluble anode Aug. 30, 1977
4028212 Silver recovery apparatus Jun. 7, 1977
4022678 Electrolytic cell May. 10, 1977
3935092 Purification of a chloride solution Jan. 27, 1976



 
 
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