| Patents for C25B 13 - Diaphragms; Spacing elements (2,681) |
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| 12/03/1996 | US5580430 High density, phosphorus-free, alkali- or silver-containing yttrium or rare earth silicate; acid resistance, current efficiency |
| 11/06/1996 | EP0591350B1 Apparatus and process for electrochemically decomposing salt solutions to form the relevant base and acid |
| 10/31/1996 | WO1996034422A1 Electrochemical energy converter |
| 10/30/1996 | CN1134471A Recycling of diaphragma |
| 10/16/1996 | CN1133619A Improvements in electrolysis systems |
| 10/09/1996 | EP0642480B1 Compositions, methods, and apparatus for separating oxygen from a gaseous mixture |
| 10/03/1996 | WO1996030563A1 Device for coulombically-efficient electrochemical generation of gas |
| 10/01/1996 | US5561202 Polymer electrolyte membrane, and process for the production thereof |
| 09/26/1996 | WO1996029360A1 Sulphonated polyether ketones, method of producing them and the use thereof to produce membranes |
| 09/26/1996 | DE19510026A1 Sulphonated aromatic polyether-ketone used for membrane prodn., etc. |
| 09/25/1996 | EP0733397A2 Staged electrolyte membrane |
| 09/19/1996 | WO1996028242A1 Composite membrane |
| 09/12/1996 | WO1996027697A1 Selective metal cation-conducting ceramics |
| 08/21/1996 | EP0726970A1 Membrane-electrode structure for electrochemical cells |
| 08/20/1996 | US5547551 Ultra-thin integral composite membrane |
| 08/20/1996 | US5547550 Preparation process for a microporous diaphragm and the diaphragm produced thereby |
| 08/20/1996 | US5547494 Staged electrolyte membrane |
| 08/07/1996 | EP0724904A1 Electrodialysis device with end boxes and its use |
| 07/23/1996 | US5539002 Ion exchange resins with decreased resistance to ionic conductivity |
| 07/17/1996 | EP0722002A1 Process for recycling diaphragms |
| 07/09/1996 | US5534576 Sealant for electrochemical cells |
| 06/11/1996 | US5525436 Proton conducting polymers used as membranes |
| 05/21/1996 | US5518588 Method for preparing 3-aminopyridines from 3-nitropyridines |
| 05/15/1996 | CN1122381A Asbestos-free cathode element |
| 05/09/1996 | WO1996013872A1 Proton conducting polymers |
| 05/08/1996 | CN1121964A A process for the preparation of metal hydroxide |
| 05/02/1996 | WO1996013073A1 Metallized cation exchanger membrane |
| 05/02/1996 | CA2203104A1 Metallized cation-exchange membrane |
| 04/30/1996 | US5512143 Electrolysis method using polymer additive for membrane cell operation where the polymer additive is ionomeric and added to the catholyte |
| 04/24/1996 | EP0708092A1 Process for the preparation of 3-aminopyridines from 3-nitropyridines |
| 01/31/1996 | CN1115755A Method for preparing 3-aminopyridines from 3-nitropyridines |
| 01/30/1996 | CA2021258C Cation exchange membrane having high stability |
| 01/16/1996 | US5484514 Electrolyzer |
| 01/16/1996 | US5484503 Process for sealing membrane in electrochemical cell |
| 01/03/1996 | EP0690519A1 A sealing assembly for a solid polymer ion exchange membrane |
| 12/20/1995 | EP0624283B1 Preparation of a membrane and its use in an electrochemical cell |
| 11/29/1995 | EP0684324A1 Process for manufacturing metal hydroxides |
| 11/29/1995 | EP0549670B1 Polymer membrane |
| 11/28/1995 | US5470449 Microporous asbestos-free diaphragms/cathodes for electrolytic cells |
| 11/25/1995 | CA2149857A1 Process for the preparation of metal hydroxide |
| 11/08/1995 | EP0680524A1 Membrane-electrode structure for electrochemical cells. |
| 10/26/1995 | WO1995028745A1 A modified cation exchange membrane for electrochemical cells and method for the preparation of such membrane |
| 10/26/1995 | CA2187529A1 A modified cation exchange membrane for electrochemical cells and method for the preparation of such membrane |
| 10/24/1995 | US5460705 Anode electrocatalyst and gas diffusion cathode comprising polytetrafluoroethylene bonded catalyst layer and metal |
| 10/19/1995 | WO1995027810A1 Oxygen supply and removal apparatus |
| 10/18/1995 | CN1110333A Method for depolarizing and stabilizing fluid by isolation method |
| 10/17/1995 | US5458762 Electrolyzer and method of operating same |
| 09/20/1995 | EP0672305A1 Electrode membrane. |
| 08/23/1995 | CN2205833Y Electrolytic tank for high-pureness nitrogen generator |
| 08/16/1995 | EP0666935A1 Electrolytic cell design and electrodes therefor |
| 08/15/1995 | US5441610 Electrolytic cell |
| 08/09/1995 | CN1106615A Method for the preparation of a microporous diaphragm |
| 08/01/1995 | US5438082 Sulfonating polyether ketone polymers, dissolving in organic solvent and converting to films, then converting sulfonate groups to sulfonyl chloride groups which are reacted with amines to yield sulfonamide groups which are then crosslinked |
| 07/12/1995 | EP0662249A1 Ion exchange membrane having increased efficiency in proton exchange processes. |
| 06/20/1995 | US5425865 Includes a layer of an ethylenically unsaturated carboxylic acid which is graft polymerized with polymeric material of porous matrix on one of its surfaces; crosslinking improves transport characteristics |
| 05/31/1995 | CN1028660C Non-organic/polymer fiber composite, method of making same and use including dimensionally stable separator |
| 05/30/1995 | US5419816 Electrolytic process and apparatus for the controlled oxidation of inorganic and organic species in aqueous solutions |
| 05/03/1995 | EP0650929A1 Electrolytic process and apparatus for the controlled oxidation or reduction of species in aqueous solutions |
| 04/28/1995 | CA2134278A1 Electrolytic process and apparatus for the controlled oxidation of inorganic and organic species in aqueous solutions |
| 04/18/1995 | US5407550 Perfluorocarbon sulfonic acid ion exchange membrane as solid electrolyte, anode placed on one side, and lead oxide as electrode catalyst |
| 04/12/1995 | EP0647245A1 Polymers of haloperfluoro and perfluoro ethers |
| 04/06/1995 | DE4333697A1 Process for the preparation of 3-aminopyridines from 3-nitropyridines |
| 04/03/1995 | CA2133373A1 Method for preparing 3-aminopyridines from 3 nitropyridines |
| 03/29/1995 | EP0645176A1 Ion selective membrane spacer assembly |
| 03/29/1995 | EP0645175A1 Spacer for dialysis, electrodialysis or electrolysis cells |
| 03/22/1995 | CN1100476A Electrolyzer |
| 03/22/1995 | CN1027981C Processing method of diaphragm for chlorine dioxide electrolytic generator and formula of electrolytic diaphragm |
| 03/15/1995 | EP0642602A1 Method for the preparation of a microporous diaphragm |
| 02/28/1995 | US5393852 Crosslinkable, melt processability; electrolytic cell mambranes, films |
| 02/22/1995 | CN1027696C Reinforced ion exchange membrane and process for producing same |
| 02/02/1995 | DE4325705A1 Electrolytic cell (electrolysis cell) arrangement with a filter press design |
| 01/31/1995 | US5385874 Ceramic compositions |
| 01/25/1995 | EP0500743B1 Ceramic solid electrolyte based electrochemical oxygen concentrator cell |
| 01/24/1995 | US5384019 Ion exchange membranes |
| 01/10/1995 | US5380413 Process for the manufacture of a bipolar membrane and process for the manufacture of an aqueous alkali metal hydroxide solution |
| 12/28/1994 | EP0631337A2 Solid polymer electrolyte composition |
| 12/28/1994 | EP0630870A1 Cathodic element not containing asbestos fibres |
| 12/26/1994 | CA2126653A1 Asbestos fibre free cathode element |
| 12/20/1994 | CA1333577C Membrane electrolytic process for producing concentrated caustic |
| 12/14/1994 | EP0628594A2 Process of manufacturing of a bipolar membrane and process for producing an aqueous solution of alkali metal hydroxide |
| 12/07/1994 | EP0470070B1 A submerged electrolytic cell pool purifier |
| 11/23/1994 | EP0625591A2 Electrolyzer |
| 11/17/1994 | EP0624283A1 Preparation of a membrane and its use in an electrochemical cell. |
| 11/08/1994 | US5362836 Sulfonated polyether ketones |
| 10/13/1994 | WO1994023093A1 Method for the preparation of a microporous diaphragm |
| 10/13/1994 | CA2136763A1 Method for the preparation of a microporous diaphragm |
| 08/04/1994 | WO1994017222A1 Membrane-electrode structure for electrochemical cells |
| 07/21/1994 | WO1994016121A1 Membrane-electrode structure for electrochemical cells |
| 07/19/1994 | US5330626 Irradiation of polymeric ion exchange membranes to increase water absorption |
| 07/05/1994 | CA1330547C Composite membrane useful as an electrode separator |
| 06/23/1994 | WO1994014203A1 Electrode membrane |
| 06/21/1994 | US5322604 Electrolytic cell and electrodes therefor |
| 06/14/1994 | US5320867 Method of making microporous asbestos diaphragms/cathodes for electrolytic cells |
| 06/01/1994 | DE4241150C1 Elektrodenmembran-Verbund, Verfahren zu dessen Herstellung sowie dessen Verwendung Electrode membrane composite, method for its production and its use |
| 05/11/1994 | WO1994010359A1 Electrolytic cell design and electrodes therefor |
| 05/11/1994 | EP0596485A1 Electrochemical process for preparing alcoholates of alkaline metal and use thereof for regenaration of the catalyst in the synthesis of methylformat |
| 05/11/1994 | CN1086550A Recycling of caalyst for synthesizing of formic ether |
| 05/11/1994 | CA2148239A1 Electrolytic cell design and electrodes therefor |
| 04/27/1994 | EP0593612A1 Polymeric sheet. |
| 04/12/1994 | US5302258 A solid composition of a metal oxide combined with multiple dopants; provides high oxygen ion conductivity |