| Patents for C25C 7 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells (6,884) |
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| 09/06/1977 | US4046663 Carbon fiber electrode |
| 08/30/1977 | US4045307 Structure for switching electrical current and cell comprising same |
| 08/30/1977 | US4045301 Separation of deposit from cathode using a wedge |
| 08/23/1977 | US4043893 Aluminum electrode hanger contact |
| 08/16/1977 | US4042473 Process for recovery of re-usable substances from a fixing bath in processes for development and fixing of photographic films and X-ray films |
| 08/09/1977 | US4040937 Mother blank for producing starting sheets used in electrolytic non-ferrous metal production |
| 08/09/1977 | US4040915 Method for producing regular electronickel or S nickel rounds from electroplating baths giving highly stressed deposits |
| 08/09/1977 | US4040914 Valve metal sheet coated with silver or silver-valve metal alloys, or oxides thereof |
| 08/02/1977 | US4039422 Metal recovery unit |
| 08/02/1977 | US4039418 Hammering, timing means |
| 08/02/1977 | US4039408 Zinc sulfate |
| 08/02/1977 | US4039407 Stainless steel screening |
| 08/02/1977 | US4039403 Electrowinning metals |
| 07/26/1977 | US4038162 Method and apparatus for detecting and eliminating short-circuits in an electrolytic tank |
| 07/12/1977 | US4035280 Contact bar for electrolytic cells |
| 07/12/1977 | US4035278 Electrolytic cells |
| 07/05/1977 | US4033848 Production of alkali metal carbonates |
| 07/05/1977 | US4033839 Method for series electrowinning and electrorefining of metals |
| 06/28/1977 | US4032425 Electrolytic cell for use in hydroelectrometallurgy |
| 06/07/1977 | US4028212 Electrolytic cells |
| 06/07/1977 | US4028211 Apparatus for automatically replacing electrodes used for electrolytic refining of metal |
| 06/07/1977 | US4028199 Method of producing metal powder |
| 05/31/1977 | US4026786 Lead dioxide, electrodeposition |
| 05/31/1977 | US4026784 Electrolytic cells |
| 05/31/1977 | US4026772 Direct electrochemical recovery of copper from dilute acidic solutions |
| 05/24/1977 | US4025413 Electrolytic refining of metal |
| 05/24/1977 | US4025400 Process and apparatus for the recovery of particulate crystalline product from an electrolysis system |
| 05/17/1977 | US4024035 Method for electric extraction of non-ferrous metals from their solutions |
| 05/10/1977 | US4023022 System for automatically and continuously measuring zinc and sulfuric acid concentration in circulating electrolyte |
| 05/10/1977 | US4022678 Agitation |
| 05/10/1977 | US4022677 Diaphragm support means |
| 05/03/1977 | US4020944 Transporting apparatus |
| 04/26/1977 | US4019968 Electrochemical cell |
| 04/19/1977 | US4018658 Electroplating of recoverable silver from photographic solutions and cell with current control means therefor |
| 04/12/1977 | US4017378 Petroleum pitch |
| 03/29/1977 | US4015099 Method of joining a copper contact button to the aluminum headbar of an electrode plate |
| 03/29/1977 | US4014763 Cathode and hanger bar assembly and electrolysis therewith |
| 03/29/1977 | US4014445 Cathode plate transfer apparatus |
| 03/22/1977 | US4013412 Method for judging purity of purified zinc sulphate solution used for electrolytic production of zinc |
| 02/01/1977 | US4006071 Accumulator program for electroplating energy |
| 01/11/1977 | US4002550 Electrolyzer for producing and refining metals |
| 12/28/1976 | US4000056 Apparatus for electrolytic metal recovery |
| 12/14/1976 | US3997421 Top-mounted anode spacer clip |
| 12/07/1976 | US3996127 Copper, nickel or zinc |
| 10/26/1976 | US3988225 Method of preventing the supersaturation of electrolyte solutions with one or more of the impurities arsenic, antimony and bismuth, in the electrolytic refining of nonferrous metals, especially copper |
| 10/26/1976 | US3988221 Electrolytic removal of heavy metal ions using particulate silicon alloys |
| 10/12/1976 | US3985634 Electrolytic silver recovery apparatus |
| 10/05/1976 | US3984612 Method and apparatus for protection of metal heating electrodes of melting furnaces by DC current |
| 09/28/1976 | US3982321 Machine and process for assembling cathodes |
| 09/21/1976 | US3981787 Electrochemical circulating bed cell |
| 09/21/1976 | US3981784 Electrowinning |
| 09/14/1976 | US3980548 Automatic apparatus for stripping deposited metal from a cathode plate in electrowinning process |
| 09/14/1976 | US3980538 Silver from photographic films |
| 09/07/1976 | US3979275 Apparatus for series electrowinning and electrorefining of metal |
| 08/10/1976 | US3974049 Electrochemical process |
| 08/03/1976 | US3972795 Axial flow electrolytic cell |
| 07/13/1976 | US3969669 Method and apparatus for continuously determining the internal resistance of an electrolysis cell |
| 06/29/1976 | US3966567 Electrolysis process and apparatus |
| 06/22/1976 | US3964990 Precious metal recovery system |
| 06/08/1976 | US3962066 Resilient liner for an electrolytic cell |
| 06/08/1976 | US3962064 Electrolyzer and a method for the production of readily oxydizable metals in a state of high purity |
| 06/01/1976 | US3960681 Betts process |
| 05/25/1976 | USRE28829 Fused salt electrolyzer for magnesium production |
| 05/25/1976 | US3959112 Device for providing uniform air distribution in air-agitated electrowinning cells |
| 05/25/1976 | US3959111 Electrolytic cell |
| 05/25/1976 | US3959110 Apparatus for silver recovery |
| 05/18/1976 | US3957615 Apparatus for conducting electrolytic reactions |
| 05/18/1976 | US3957603 Electrolytic gold recovery and separation process |
| 05/18/1976 | US3957600 Method of and anodes for use in electrowinning metals |
| 05/18/1976 | US3957599 Process for electrowinning |
| 05/11/1976 | US3956086 Electrolytic cells |
| 04/27/1976 | US3953313 Recovering silver from photographic solutions |
| 04/27/1976 | US3953312 Apparatus for peeling electrodeposited metal off cathode base plate |
| 04/20/1976 | US3951773 Fluidized bed electrode system utilizing embedded insulator auxiliary electrode |
| 04/13/1976 | US3950239 Electrical connector for bipolar electrodes |
| 04/13/1976 | US3950232 Process for removing electrodeposits |
| 04/06/1976 | US3948747 Elimination or control of acid mists over electrolytic cells |
| 03/23/1976 | US3945892 Electrochemical process and apparatus including means for equalizing pressure across the ion-permeable wall |
| 03/16/1976 | US3944995 Device for detecting short-circuit between electrodes in electrolytic cell |
| 03/02/1976 | US3941669 Fluidized bed electrode system |
| 02/24/1976 | US3940328 Reconstructed or repaired electrode structure |
| 02/03/1976 | US3936363 Electrolytic metal recovery process and apparatus |
| 01/27/1976 | US3935091 Device for detaching an electrolytically percipitated metal sheet from a cathode |
| 01/06/1976 | US3930967 Process for the electrolysis of a molten charge using inconsumable bi-polar electrodes |