| Patents for C23F 13 - Inhibiting corrosion of metals by anodic or cathodic protection (3,652) |
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| 01/19/2005 | CN1566403A Cerium (Ce)-added aluminum alloy sacrificial anode |
| 01/13/2005 | WO2005003061A1 Multi-layered surface protection for reinforced concrete in order to improve protection against corrosion for reinforced concrete constructions or reinforced concrete building components and method for the production thereof |
| 01/13/2005 | US20050006250 Overcoating protective coating onto metal substrate in electrolytic cell |
| 01/13/2005 | CA2530190A1 Multi-layered surface protection for reinforced concrete in order to improve protection against corrosion for reinforced concrete constructions or reinforced concrete building components and method for the production thereof |
| 01/12/2005 | CN1563495A Metal piece for cladding anode layer |
| 01/11/2005 | US6841059 Hull potential monitor device having a plurality of annunciators |
| 01/11/2005 | CA2434986A1 Method and apparatus for instrumental analysis in remote locations |
| 01/06/2005 | WO2004027933A3 Cathodic protection junction box current equalizer |
| 01/05/2005 | CN1183275C Cathodic protection method and device for metal structure |
| 01/04/2005 | US6838525 Process for manufacture of proton conductive polymer gel useful as backfill for sacrificial and impressed current anode systems |
| 12/29/2004 | WO2002053803A3 Corrosion protection for a metal pole that is anchored vertically in the ground |
| 12/29/2004 | CN1557992A Method of inside and outside wall integrated anticorrosion for crude oil storage tank and modeling protection for deep well anode |
| 12/28/2004 | US6835291 Anode monitoring and subsea pipeline power transmission |
| 12/28/2004 | CA2187020C Corrosion protection system |
| 12/16/2004 | WO2004108992A1 Fabricated titanium article having improved corrosion resistance |
| 12/16/2004 | US20040251005 Plate-Type Heat Exchanger With Anodic Corrosion Protection |
| 12/16/2004 | CA2528107A1 Fabricated titanium article having improved corrosion resistance |
| 12/02/2004 | WO2004104270A1 Cathodic protection of heat exchanger tubes by means of mobile sacrificial anodes |
| 12/02/2004 | US20040238377 Cryogenic tank testing method including cathodic protection |
| 12/02/2004 | US20040238376 Cathodic protection |
| 12/02/2004 | US20040238375 Applying anodic current density in passivation potential range |
| 12/02/2004 | US20040238347 Enhancing performance of sacrificial anode; including humectant and surrounding with ionically conductive, compressible fiber matrix having void volumes designed to absorb expansion due to corrosion without transmitting stress to concrete structure |
| 12/01/2004 | EP1481436A2 Method for inerting the anodes of fuel cells |
| 11/25/2004 | WO2004101851A2 Wear indicator for sacrificial anode |
| 11/25/2004 | US20040232924 Methods and systems for automated pipeline testing |
| 11/25/2004 | US20040231975 Pulsed electric fieldmethod and apparatus for preventing biofouling on aquatic surfaces |
| 11/25/2004 | CA2520105A1 Wear indicator for sacrificial anode |
| 11/24/2004 | EP1479792A2 Dielectric means of fastening for an anode in a metal tank |
| 11/23/2004 | US6822432 Methods and systems for automated pipeline testing |
| 11/18/2004 | WO2004100307A2 Anticorrosive protection system for antenna glass, and corresponding antenna glass |
| 11/17/2004 | CN2656433Y Seawater pipeline sacrifice anode protective device |
| 11/11/2004 | US20040222084 Wear indicator for sacrificial anode |
| 11/10/2004 | CN1544699A Oil tank internal aseptic method by using insulating coated composite sacrificial anode |
| 11/10/2004 | CN1174937C Combination electrode for the electrochemical restoration of corrosion-damaged reinforced concrete and corresponding method for controlling the same |
| 11/02/2004 | US6811681 Semiconductive corrosion and fouling control apparatus, system, and method |
| 10/28/2004 | US20040211677 Generating electrical waveforms having predetermined characteristics from a DC voltage source, each waveform having a temporal AC component; coupling the electrical waveforms to the metal object; inducing a surface current over an entire surface of the metal object |
| 10/27/2004 | EP1470266A1 Improvement in cathodic protection system |
| 10/21/2004 | US20040206635 multilayer protective coatings; electrodeposition of one layer ; distribution of polytetrafluoroethylene particles in another layer; securing magnesium alloy to coating using steel bolt and washers |
| 10/14/2004 | DE10319607B3 Corrosion protection circuit for conductor structure of automobile windscreen antenna using electrical passivation voltage as supply voltage for HF component |
| 10/05/2004 | CA2245729C Electrochemical method and electrode |
| 09/30/2004 | US20040191555 Coating systems having an anti-corrosion layer and a powder coating layer |
| 09/23/2004 | WO2004081543A2 Method of testing a cryogenic storage vessel with cathodic protection |
| 09/23/2004 | US20040186221 Gelated polymer network; in situ dopes |
| 09/21/2004 | US6793800 Embedding anodes into fresh concrete applied over excavated patch or as covering overlay and containing corrosion inhibitor |
| 09/16/2004 | WO2004057056A3 Cathodic protection of steel within a covering material |
| 09/15/2004 | CN1166436C Anode protective acid spreader |
| 09/14/2004 | USRE38581 Plurality of pulsed d.c. current sources with each source being adapted to be connected to a separate structure, arranged to supply a current pulse of a controllable amplitude at a selected frequency |
| 09/07/2004 | US6788075 Anode monitoring |
| 09/01/2004 | CN2637880Y Cathode protection anticorrusion high pressure gas storage well device |
| 09/01/2004 | CN1526036A Semiconductive polymeric system, devices incorporating the same, and its use in controlling corrosion |
| 08/26/2004 | DE10306119A1 Ochre feature prevention for fluid-prominent elements at horizontal filter wells, has cathode to aim backlash potential to horizontal filter pipe, slidegate valves, measuring instruments, coat pumps and pressure pipes |
| 08/19/2004 | WO2004070084A1 Method for protecting metal-containing structures deposited on substrates against corrosion |
| 08/17/2004 | US6777943 Method and apparatus for monitoring a cathodic protected structure |
| 08/17/2004 | CA2141127C Corrosion protection system |
| 08/12/2004 | WO2004068153A1 Method for measuring potential of the uncharged surface of a solid metal electrode and device for carrying out said method, method and device for electrochemical protection of structural metals against corrosion |
| 08/12/2004 | DE102004004064A1 Vorrichtung zur Überwachung des Verbrachs einer Opferanode Device for monitoring the Verbrachs a sacrificial anode |
| 08/11/2004 | EP1444461A1 Cathodic protection system for air compressor tanks |
| 08/11/2004 | EP1444382A1 Cathodic protection system |
| 08/10/2004 | US6774814 Pipe-to-soil testing apparatus and methods |
| 08/10/2004 | US6772622 Disbonded coating cathodic protection monitoring coupon |
| 08/06/2004 | CA2457238A1 Coating systems having an anti-corrosion layer and a powder coating layer |
| 08/03/2004 | US6770177 Cathodic protection system for air compressor tanks |
| 07/28/2004 | EP1125004B1 System with selected current level for active protection against corrosion of the vessel of a water heater or similar appliances |
| 07/28/2004 | CN2628541Y Passing through road and railway casing cathode protection apparatus |
| 07/22/2004 | DE202004005771U1 Probe for measuring the effectiveness of a cathodic corrosion protection system, especially an underground pipeline protection system, has a number of isolated conducting surfaces of known different surface area |
| 07/22/2004 | DE10300388A1 Protection of metallic structures or layers deposited on a substrate, e.g. a vehicle windscreen, against electrical corrosion, whereby a passivation voltage is at least temporarily applied to the structure to be protected |
| 07/22/2004 | DE10297130T5 Struktur und Verfahren zum Verhindern elektrolytischer Korrosion von Magnesiumlegierungselementen Structure and method for preventing electrolytic corrosion of the magnesium alloy elements |
| 07/21/2004 | CN2626938Y Corrosion prevention online remote measurement, remote control and lifetime prediction apparatus for crude oil storage tank |
| 07/21/2004 | CN1158492C Method for protecting enamel internal container of water-heater and its device |
| 07/15/2004 | US20040135219 Fabrication of silicon micro mechanical structures |
| 07/15/2004 | US20040134795 corrosion resistance; antifouling; for seawater exposure; comprises zinc-containing coating, and applied/direct current cathodic protection; electrochemistry |
| 07/08/2004 | WO2004057057A1 Process for manufacture of proton conductive polymer gel useful as backfill for sacrificial and impressed current anode systems |
| 07/08/2004 | WO2004057056A2 Cathodic protection of steel within a covering material |
| 07/08/2004 | WO2004016833A3 Electrochemical scale inhibition |
| 07/08/2004 | DE202004005543U1 Anode for hot water tank has protective cap forming bonding between anode end and threaded nipple and with spring sleeve in center engaging in anode end with contact action |
| 07/08/2004 | CA2509549A1 Cathodic protection of steel within a covering material |
| 07/07/2004 | CN2623700Y Double protection anticorrosion apparatus |
| 07/07/2004 | CN2623699Y Constant electric potential difference adscititious current anticorrosion apparatus for different metal body |
| 07/07/2004 | CA2414659A1 Automotive insertable sacrificial anode |
| 07/01/2004 | WO2004055239A1 Apparatus for cathodic protection in an environment in which thin film corrosive fluids are formed and method thereof |
| 06/30/2004 | EP1432846A2 Cathodic protection |
| 06/24/2004 | US20040118702 steel is protected by providing an anode material in or in contact with the covering which provides an ionic current to the steel through the covering |
| 06/23/2004 | EP1431420A1 Sensor that detects the deterioration of sacrificial Anodes used for protection against erosion. |
| 06/23/2004 | EP1431419A2 Alkali metal hydroxide evaporator system |
| 06/23/2004 | CN1506497A Constant-voltage anode protection method for concentrated sulfuric acid conveying pipe |
| 06/17/2004 | WO2004050952A1 Method and device for preventing corrosion in an installation |
| 06/17/2004 | WO2004035865A9 Semiconductive corrosion and fouling control apparatus, system, and method |
| 06/17/2004 | US20040112737 Cathodic protection system for metallic structures |
| 06/16/2004 | EP1203109B1 Anode monitoring systems and methods |
| 06/10/2004 | WO2002059394A3 Means for protecting from corrosion metallic tanks containing liquids to be heated; water heaters in particular |
| 06/09/2004 | EP1426467A1 Impressed current device responsive to the operative parameters of the structure to be protected |
| 06/03/2004 | WO2004046422A1 Composite sacrificial anodes |
| 06/03/2004 | CA2506067A1 Composite sacrificial anodes |
| 05/27/2004 | US20040099539 Corrosion-inhibited system and method for providing a utility service to a plurality of consumers |
| 05/26/2004 | CN1151316C Multiple position signal detection and storage device for pipeline cathode protection |
| 05/19/2004 | CN1497067A Titanium product with improved corrosion resistant property |
| 05/13/2004 | WO2004040038A1 Heat exchanger, heat exchanger tube member, heat exchanger fin member and process for fabricating the heat exchanger |
| 05/13/2004 | US20040089559 Semiconductive corrosion and fouling control apparatus, system, and method |
| 05/12/2004 | CN1496333A Fabrication of silicon micro mechanical structures |
| 05/06/2004 | WO2004038071A2 Coatings for the inhibition of undesirable oxidation in an electrochemical cell |