| Patents for C23F 13 - Inhibiting corrosion of metals by anodic or cathodic protection (3,652) | 
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| 07/14/2011 | WO2011083310A1 Trench cover | 
| 07/14/2011 | US20110168571 Treatment process for concrete | 
| 07/13/2011 | EP2021527B1 Applications for sacrificial anodes | 
| 07/13/2011 | CN1766458B Water storage device and method used for protecting water-storing device having galvanical anode | 
| 07/13/2011 | CN102121109A Method for preparing long-acting solid zinc reference electrode used in soil | 
| 07/07/2011 | US20110162960 Method of preparing an electrode for a capacitive deionization device, an electrode for a capacitive deionization device, and a capacitive deionization device having the electrode | 
| 07/06/2011 | CN201890935U Anode protection concentrated sulfuric acid groove | 
| 07/05/2011 | US7972739 Method for inerting the anodes of fuel cells | 
| 06/30/2011 | WO2011077186A1 Underwater optical fibre cable | 
| 06/30/2011 | CA2725932A1 Methods for inhibiting corrosion of high strength steel turbine components | 
| 06/29/2011 | CN201883151U Electronic anode structure | 
| 06/29/2011 | CN201883150U Electronic rust-proof system with isolation circuit | 
| 06/28/2011 | US7967972 Electrical connection to impressed current anode in concrete construction | 
| 06/28/2011 | US7967971 Discrete sacrificial anode assembly | 
| 06/28/2011 | US7967970 Method for the cathodic protection of the reinforcements of ferroconcrete edifices against corrosion | 
| 06/28/2011 | US7967959 Cathodic protection method and apparatus | 
| 06/22/2011 | EP2336392A1 Cathodic protection monitoring | 
| 06/22/2011 | CN201877160U Cathode protective anti-corrosion cable | 
| 06/22/2011 | CN201873757U Magnesium anode with consumption speed adjusted according to water quality conditions | 
| 06/22/2011 | CN201873756U Regional special potentiostat for cathode protection | 
| 06/22/2011 | CN102102222A Method for preparing three-dimensional titanate nano film on surface of titanium | 
| 06/22/2011 | CN101619459B Sacrificial anode capable of quickly activating aluminum alloy | 
| 06/21/2011 | US7964067 Corrosion control of bottom plates in above-ground storage tanks | 
| 06/15/2011 | CN102094203A Genetic algorithm-based gas station regional auxiliary anode position optimization method | 
| 06/15/2011 | CN101665944B Mg-Mn-Ca-Zn-Sr sacrificial anode with high current efficiency | 
| 06/14/2011 | US7959786 Cathodic protection | 
| 06/08/2011 | CN101648273B Method for preparing zinc-nickel alloy powder and application thereof | 
| 06/03/2011 | WO2011066427A1 Enclosing manufacture with a magnesium sacrificial anode for corrosion protection | 
| 06/03/2011 | WO2011066411A1 Impressed current protection for food or beverage containers | 
| 06/01/2011 | DE202010016029U1 Polypropylen-Siebbeutel für den kathodischen Korrosionsschutz Polypropylene mesh bag for Cathodic Protection | 
| 06/01/2011 | CN201852335U Solar heat-absorbing panel core capable of preventing electrochemical corrosion | 
| 06/01/2011 | CN101638786B High-potential sacrificial magnesium alloy anode and manufacturing method thereof | 
| 05/31/2011 | US7951286 Using an impressed current cathodic protection system to power electrical appliances | 
| 05/26/2011 | US20110120884 Impressed current protection for food or beverage containers | 
| 05/25/2011 | CN102072360A Pipe-jacking cathode protection embedding device and embedding method thereof | 
| 05/24/2011 | CA2450024C Semiconductive polymeric system, devices incorporating the same, and its use in controlling corrosion | 
| 05/19/2011 | WO2011058021A1 Corrosion protection coatings, in particular for metals, selected from the group made up of aluminum, aluminum alloys, steel, and steel having a coating comprising zinc, and mixtures for the production thereof | 
| 05/19/2011 | US20110114477 Refillable anode | 
| 05/18/2011 | CN102066622A Method for electrochemically depositing a metal on a substrate | 
| 05/18/2011 | CN101660163B Constant potential rectifier applied to negative electrode protection system | 
| 05/12/2011 | US20110108413 Spray formed galvanic anode panel | 
| 05/12/2011 | DE102009051768A1 Elektrochemisches Antifoulingsystem für seewasserbenetzte Bauwerke Electrochemical antifouling system for seewasserbenetzte Buildings | 
| 05/11/2011 | CN102051623A Protecting method and device of dynamic current exciting steel bar structure | 
| 05/11/2011 | CN101565833B Positive and negative alternate electrolysis-resistance metal oxide electrode | 
| 05/05/2011 | US20110100802 Polymeric, Non-Corrosive Cathodic Protection Anode | 
| 05/04/2011 | EP2316584A1 Electrochemical anti-fouling system for structures wetted by sea water | 
| 05/04/2011 | CN102041511A Special reference electrode in storage tank | 
| 05/04/2011 | CN102039779A Vehicle wheel assembly with galvanic isolation | 
| 04/27/2011 | CN201809442U Magnesium alloy sacrificial anode water quality protector | 
| 04/27/2011 | CN201809441U Metering station cathodic protection | 
| 04/27/2011 | CN102031530A Current anticorrosive protecting device, method and centrifugal pump | 
| 04/21/2011 | US20110089048 Auxiliary device, a marine surface vessel and a method for a sacrificial anode in a marine construction | 
| 04/21/2011 | US20110089047 Cadmium-Free Zinc-Based Alloy, its Use as a Sacrificial Anode, a Sacrificial Anode, and a Method for Cathodic Protection of Corrosion-Threatened Constructions in Aggressive Environment | 
| 04/20/2011 | CN201801598U Sacrificial anode in storage tank | 
| 04/20/2011 | CN201801597U Magnesium rod for automatically adjusting resistance value | 
| 04/20/2011 | CN102022818A Electric storage water heater with double cathodic protection | 
| 04/20/2011 | CN102021585A Method for reducing rate of pipeline corrosion caused by blast-furnace gas condensate water | 
| 04/20/2011 | CN102021584A Pipe transmission oriented cathode protection system | 
| 04/14/2011 | US20110083973 Auxiliary device, a marine surface vessel, and a method for corrosion protection in a marine construction | 
| 04/13/2011 | EP1383707B1 Fabrication of silicon micro mechanical structures | 
| 04/13/2011 | CN201795468U Biomass and garbage power generation boiler for preventing corrosion of superheater | 
| 04/13/2011 | CN201793747U Special clamp for sacrificial anode used for mounting ship body | 
| 04/13/2011 | CN201793746U Antifouling copper anode | 
| 04/13/2011 | CN102011126A Anode protective concentrated sulfuric acid tank | 
| 04/07/2011 | WO2011017728A3 Method for removing corrosive anions from the pore solutions of porous solids using zinc | 
| 04/06/2011 | CN201785497U Sacrificial anode for ballast tank | 
| 04/06/2011 | CN201785496U Reinforced concrete cathodic protection measuring and control device | 
| 04/06/2011 | CN201785495U Impressed current cathodic protection system of drum-shaped rotary filter screen of nuclear power station | 
| 04/06/2011 | CN102007229A Anode for cathodic protection | 
| 04/06/2011 | CN102002715A High-performance aluminium alloy sacrificial anode | 
| 04/06/2011 | CN101487123B Surface treating method for titanium belt and titanium mesh anode | 
| 04/06/2011 | CN101429663B Platinum-tantalum-platinum three-layer composite screen and method for producing the same | 
| 03/30/2011 | EP2300639A1 An auxiliary device, a marine surface vessel, and a method for corrosion protection in a marine construction | 
| 03/30/2011 | EP2300638A1 An auxiliary device, a marine surface vessel and a method for a sacrificial anode in a marine construction | 
| 03/30/2011 | CN201778114U Ship hull impressed current cathodic protection device | 
| 03/30/2011 | CN201778113U Stray current interference corrosion simulating and optimizing device | 
| 03/29/2011 | US7914661 Cathodic protection | 
| 03/23/2011 | EP2298963A2 Container boiler with double cathodic protection | 
| 03/23/2011 | CN201768877U Novel bracelet-type mould for casting sacrificial anode | 
| 03/22/2011 | US7909982 Treatment process for concrete | 
| 03/22/2011 | CA2380137C Method of treating corrosion in reinforced concrete structures by providing a uniform surface potential | 
| 03/16/2011 | CN201762445U Novel solid anticorrosion device | 
| 03/16/2011 | CN101985753A Method for preventing electrochemical corrosion of water treatment structure | 
| 03/15/2011 | US7905993 Corrosion control method and apparatus for reinforcing steel in concrete structures | 
| 03/15/2011 | US7905992 Submerged surface with conductive nanoparticles | 
| 03/09/2011 | CN201756587U Double hole die for producing magnesium sacrificial anode rods | 
| 03/09/2011 | CN101984137A Screw anchor with corrosion resistance | 
| 03/08/2011 | US7901547 Electrical device for impeding corrosion | 
| 03/08/2011 | US7901546 Monitoring methods, systems and apparatus for validating the operation of a current interrupter used in cathodic protection | 
| 03/03/2011 | US20110048965 Composition for plasma electrolytic oxidation (PEO) treatment of Magnesium alloy products | 
| 03/02/2011 | CN201753912U Biomass and waste power-generation boiler avoiding corrosion of superheaters | 
| 03/01/2011 | US7897031 Control apparatus, system, and method for reduction and/or prevention of space weather induced corrosion | 
| 02/24/2011 | DE102009008069B4 Vorrichtung zum Bewuchs- und Korrosionsschutz vor Seewassereintritten in Schiffen Apparatus for Bewuchs- and corrosion protection from seawater intakes in ships | 
| 02/17/2011 | US20110036723 Methods of coating magnesium-based substrates | 
| 02/10/2011 | US20110031132 Hydraulic binder and binder matrices made thereof | 
| 02/09/2011 | CN201738008U Anode protector of oil sleeve | 
| 02/09/2011 | CN201738007U Modularized cathode protection anticorrosion power supply | 
| 02/09/2011 | CN101967644A Ship cathode protection analog device | 
| 02/09/2011 | CN101693999B Aluminum-zinc-tin system sacrificial anode material and preparation method thereof | 
| 02/08/2011 | US7883608 Cathodic protection systems |