| Patents for C23F 13 - Inhibiting corrosion of metals by anodic or cathodic protection (3,652) |
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| 03/06/1984 | US4435263 Calcium sulfite, sodium alkylates, sodium dialkyldithiocarbamates, and calcium bentonite |
| 02/28/1984 | US4434039 Electrocaemically active noble metal anode |
| 02/14/1984 | US4431963 Apparatus for determining a natural current flow in well casing |
| 01/24/1984 | US4427517 Underground backfill for magnesium anodes |
| 12/27/1983 | US4422917 Electrode material, electrode and electrochemical cell |
| 12/13/1983 | US4420382 Shield to prevent necking |
| 11/08/1983 | US4413679 Wellbore cathodic protection |
| 11/08/1983 | US4413408 Method for fabricating electrodes |
| 10/11/1983 | US4409081 For use on marine structures |
| 10/11/1983 | US4409080 System for monitoring a cathodically protected structure |
| 10/04/1983 | US4407711 Noble metal anode configured for good current distribution |
| 10/04/1983 | CA1154719A1 Method for controlling 'end effect' on anodes used for cathodic protection and other applications |
| 10/04/1983 | CA1154713A1 Electrical connector of tantalum or niobium for cathodic protection system |
| 09/29/1983 | WO1983003264A1 Oxide anode for use in impressed current cathodic corrosion protection |
| 09/13/1983 | CA1153731A1 Composite electrode for electrolytic processes |
| 09/07/1983 | EP0087900A2 Method of increasing life expectancy of microporous separators |
| 08/30/1983 | US4401540 Apparatus for reducing end effect in anodes |
| 08/23/1983 | US4400782 Corrosion monitoring system using a metal pipe for transmission of monitoring signals |
| 08/23/1983 | US4400259 Deep anode assembly |
| 08/10/1983 | EP0085582A1 Cathodic protection using conductive polymer concrete |
| 08/09/1983 | US4397726 Cathodically protected vessel |
| 08/09/1983 | CA1151592A1 Tubular anode |
| 08/03/1983 | EP0084875A2 Linear anodic structure |
| 07/27/1983 | EP0084519A2 Vessel containing an unstable solution of a metal salt or complex, and process for sealing such a vessel |
| 07/05/1983 | US4391841 Passivation of metallic equipment surfaces in electroless copper deposition processes |
| 07/05/1983 | US4391567 Corrosion preventing device for a marine propeller |
| 06/22/1983 | EP0081652A1 Insulating rings or insulating parts for the electrical disconnection of cathodic protections in pipe lines |
| 06/21/1983 | CA1148498A1 Electrochemical corrosion protection of stainless steel bleach plant washers |
| 06/14/1983 | US4388594 Semi-permeable electrolytic cell and method for surveying buried structures |
| 06/14/1983 | US4388168 Low resistance electrode system |
| 05/31/1983 | CA1147289A1 Anode for high resistivity cathodic protection systems |
| 05/17/1983 | US4383900 Apparatus and method for measuring the IR drop free cathodic protection potential created by a rectifier and controlling rectifier operation to achieve a desired level thereof |
| 05/03/1983 | US4381981 Mosfet current control device |
| 03/15/1983 | US4376753 Corrosion protection system for nuclear power plant |
| 03/01/1983 | CA1142226A1 Anode depletion detector |
| 02/22/1983 | CA1141699A1 Cathodic protection including wires in carbonaceous matrix for steel-concrete structures |
| 01/25/1983 | US4370211 Method and apparatus for cathodic protection |
| 01/19/1983 | EP0070168A2 Protecting metal substrates from corrosion |
| 01/11/1983 | CA1139071A1 Heat-recoverable article |
| 01/04/1983 | CA1138816A1 Protecting ferritic stainless steel from crevice and pitting corrosion |
| 01/04/1983 | CA1138815A1 Protecting austenitic stainless steel from stress corrosion cracking |
| 12/28/1982 | US4366037 Method of increasing useful life expectancy of microporous separators |
| 12/22/1982 | EP0067679A1 Corrosion protection system |
| 12/14/1982 | CA1137444A1 Impressed current systems for cathodic protection |
| 11/09/1982 | CA1135391A1 Test station apparatus for flush mounting |
| 09/28/1982 | US4351703 Induction current flow to inhibit corrosion |
| 09/15/1982 | EP0059804A1 A method of and apparatus for sensing electric current leakages in a cathodically protected pipeline |
| 08/18/1982 | EP0057866A2 Device for protecting containers having radioactive materials therein from corrosion |
| 08/03/1982 | US4342634 Continuity spring for a hydraulic cylinder |
| 06/29/1982 | CA1126692A2 Non-sacrificial anode and water heater construction |
| 06/29/1982 | CA1126691A1 Monitor assembly for electrochemical corrosion protection of stainless steel bleach plant washers |
| 06/22/1982 | US4335754 Prevention of hydrogen embrittlement of metals in corrosive environments |
| 05/26/1982 | EP0052509A2 Method of removing oxide on a metal surface |
| 05/25/1982 | CA1124210A1 Sintered electrodes with electrocatalytic coating |
| 05/18/1982 | US4330376 Rhodium coating |
| 05/18/1982 | CA1123785A1 Impressed current rope anodes |
| 05/11/1982 | US4329402 Micro-throwing alloy undercoatings and method for improving corrosion resistance |
| 04/21/1982 | EP0049811A1 Cathodic protection of catalysts in a corrosive environment |
| 04/13/1982 | CA1121757A2 Detector for the galvanic protection of metallic structures |
| 04/01/1982 | WO1982001017A1 Reactive anode with consumption indicator and diving capsule for a heat probe |
| 03/30/1982 | US4322805 Electrical survey method and apparatus |
| 03/30/1982 | US4322633 Marine cathodic protection system |
| 03/17/1982 | EP0047595A1 Electrochemical cell |
| 03/09/1982 | US4318787 Sacrificial anode composition in cathodic protection process |
| 03/02/1982 | CA1119026A1 Corrosion resistant fastening system |
| 02/09/1982 | US4314893 Zinc alloy, steels, elecrodeposition |
| 02/04/1982 | WO1982000302A1 Articles protected against corrosion and method for protecting articles against corrosion |
| 02/02/1982 | US4313806 Cathodic protection of catalysts in a corrosive environment |
| 01/20/1982 | EP0044036A1 Articles protected against corrosion and method for protecting articles against corrosion |
| 01/19/1982 | US4311576 Electric corrosion preventing apparatus |
| 01/12/1982 | CA1116123A1 Cathodic protection anode component |
| 01/12/1982 | CA1116122A1 Cathodic protection anode |
| 01/05/1982 | US4309263 For securing to leg portion of offshore drilling platform |
| 12/15/1981 | US4306189 Anode depletion detector |
| 12/01/1981 | CA1113424A2 Portable sensor for the measurement of cathodic protection and corrosion of metallic structures |
| 11/03/1981 | US4298445 Anode for cathodic protection system |
| 09/29/1981 | US4292149 Current rope anodes |
| 09/22/1981 | US4290868 Magnesium anode in galvanic cell system |
| 09/08/1981 | US4288500 Anodes |
| 09/01/1981 | US4287034 Protecting metal substrates from corrosion |
| 08/25/1981 | US4285787 Electrochemical corrosion protection of stainless steel bleach plant washers |
| 08/25/1981 | US4285232 Monitor assembly for electrochemical corrosion protection of stainless steel bleach plant washers |
| 08/18/1981 | US4284488 Sacrificial anode assembly |
| 07/28/1981 | US4280794 Sacrificial anodic protector kit for a propeller shaft |
| 07/21/1981 | US4279729 Extruding, boring, sealing |
| 06/23/1981 | CA1103615A1 Cathodic protection by soluble anode for stud link anchoring chains |
| 06/16/1981 | CA1103203A1 Sacrificial anode with partially perforated metal tube embedded in anode |
| 06/16/1981 | CA1103200A1 Non-sacrificial anode and water heater construction |
| 06/03/1981 | EP0029494A1 Vessel protected against internal corrosion |
| 06/03/1981 | EP0029493A1 Vessel protected against internal corrosion |
| 05/20/1981 | EP0028927A1 The use of polyhydroxy compounds for protecting substrates from corrosion, articles and methods for protecting substrates using these compounds and substrates so protected |
| 05/19/1981 | US4268371 Cable guide for a tubular anode |
| 05/19/1981 | CA1101369A1 Sealed terminal |
| 05/12/1981 | US4267029 Anode for high resistivity cathodic protection systems |
| 05/12/1981 | CA1100909A1 Resistor anode for metal tank |
| 05/12/1981 | CA1100908A1 Aluminum marine anode with core activator |
| 05/05/1981 | US4265725 Anode connection |
| 05/05/1981 | CA1100437A1 Method for reducing interference in metallic structures |
| 03/24/1981 | US4258323 Cathodic survey apparatus |
| 03/10/1981 | US4255647 Water tank having electric heating element and cathodic corrosion protection |