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Class Information
Number: 204/290.12
Name: Chemistry: electrical and wave energy > Apparatus > Electrolytic > Elements > Electrodes > Laminated or coated (i.e., composite having two or more layers) > Refractory metal (i.e., ti, v, cr, zr, nb or cb, mo, hf, ta, or w) or compound containing
Description: Electrode containing a refractory metal (i.e., titanium (Ti), vanadium (V), chromium (Cr), zirconium (Zr), niobium (Nb) or columbium (Cb), molybdenum (Mo), hafnium (Hf), tantalum (Ta), or tungsten (wolfram) (W)) or a compound thereof.

Sub-classes under this class:

Class Number Class Name Patents
204/290.13 Surface layer contains electrolytically exposed refractory metal or compound 326

Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
5690799 Hydrogen-occluding alloy and hydrogen-occluding alloy electrode Nov. 25, 1997
5690806 Cell and method for the recovery of metals from dilute solutions Nov. 25, 1997
5688385 Apparatus for producing chlorine on-site Nov. 18, 1997
5681445 Modified surface bipolar electrode Oct. 28, 1997
5679225 Electrode for an electrochemical process and use of the said electrode Oct. 21, 1997
5670115 Hydrogen sensor Sep. 23, 1997
5667649 Corrosion-resistant ferrous alloys for use as impressed current anodes Sep. 16, 1997
5653857 Filter press electrolyzer electrode assembly Aug. 5, 1997
5639358 Cathodic protection system for a steel-reinforced concrete structure Jun. 17, 1997
5635039 Membrane with internal passages to permit fluid flow and an electrochemical cell containing the same Jun. 3, 1997
5628892 Electroplating method and apparatus for the preparation of metal foil and split insoluble electrode used therein May. 13, 1997
5626729 Modified polymer electrodes for energy storage devices and method of making same May. 6, 1997
5614068 Water purifier Mar. 25, 1997
5609748 Anode for cathodic protection against corrosion Mar. 11, 1997
5580672 Method for reducing the risk of perforation or gas leakage in electrochemical and gas generating devices Dec. 3, 1996
5578176 Method of preparing electrodes of improved service life Nov. 26, 1996
5578175 Process for manufacturing iridium and palladium oxides-coated titanium electrode and the electrode produced thereby Nov. 26, 1996
5578174 Conditioning of cell components for aluminum production Nov. 26, 1996
5569526 Anode structure for cathodic protection of steel-reinforced concrete and relevant method of use Oct. 29, 1996
5507932 Apparatus for electrolyzing fluids Apr. 16, 1996
5464519 Refurbished electrode having an inner plate and outer envelope electrode Nov. 7, 1995
5460705 Method and apparatus for electrochemical production of ozone Oct. 24, 1995
5451307 Expanded metal mesh and anode structure Sep. 19, 1995
5439576 Apparatus for the sterilization of water Aug. 8, 1995
5431800 Layered electrodes with inorganic thin films and method for producing the same Jul. 11, 1995
5423961 Cathodic protection system for a steel-reinforced concrete structure Jun. 13, 1995
5421968 Cathodic protection system for a steel-reinforced concrete structure Jun. 6, 1995
5411646 Cathodic protection anode and systems May. 2, 1995
5407550 Electrode structure for ozone production and process for producing the same Apr. 18, 1995
5403462 Electrochemical electrodes and methods for the preparation thereof Apr. 4, 1995
5401369 Electroplating pen Mar. 28, 1995
5378339 Water electrolyzer Jan. 3, 1995
5344530 Metal anodes for electrolytic acid solutions containing fluorides or fluoroanionic complexes Sep. 6, 1994
5314601 Electrodes of improved service life May. 24, 1994
5314760 Electrochemical cell electrode May. 24, 1994
5296107 Indirect cerium medicated electrosynthesis Mar. 22, 1994
5296121 Target electrode for preventing corrosion in electrochemical cells Mar. 22, 1994
5290410 Electrode and its use in chlor-alkali electrolysis Mar. 1, 1994
5277777 Insoluble anode for electrolyses in aqueous solutions Jan. 11, 1994
5273635 Electrolytic heater Dec. 28, 1993
5268084 Antimony-lithium electrode Dec. 7, 1993
5254233 Monopolar ion exchange membrane electrolytic cell assembly Oct. 19, 1993
5246559 Electrolytic cell apparatus Sep. 21, 1993
5221452 Monopolar ion exchange membrane electrolytic cell assembly Jun. 22, 1993
5212018 Conductivity meter and method of producing an electrode for use in same May. 18, 1993
5188721 Plate anode having bias cut edges Feb. 23, 1993
5167788 Metal substrate of improved surface morphology Dec. 1, 1992
5160596 Membraneless chlorine gas generating apparatus Nov. 3, 1992
5158658 Electrochemical chlorine dioxide generator Oct. 27, 1992
5141619 Electrolyser having electrodes coupled in electrical series along a common vertical wall Aug. 25, 1992

1 2 3 4 5 6 7 8

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