Inventor · disambiguated record
Walther G. Grot
Also filed as: GROT WALTHER · GROT WALTHER G · GROT WALTHER GUSTAV
31 granted patents·1,703 citations·filing 1973–2013
98Inventor score
Top patents by PatentIndex Score
31 records- 0199US4433082AProcess for making liquid composition of perfluorinated ion exchange polymer, and product thereofDU PONT·Filed 1981·Granted Feb 21, 1984·344 cites·34 claims
- 0298US5330860AMembrane and electrode structureDU PONT·Filed 1993·Granted Jul 19, 1994·204 cites·22 claims
- 0397US7255798B2Recycling of used perfluorosulfonic acid membranesION POWER INC·Filed 2005·Granted Aug 14, 2007·29 cites·23 claims
- 0497US4453991AProcess for making articles coated with a liquid composition of perfluorinated ion exchange resinDU PONT·Filed 1982·Granted Jun 12, 1984·107 cites·20 claims
- 0596US5415888AMethod of imprinting catalytically active particles on membraneDU PONT·Filed 1993·Granted May 16, 1995·116 cites·20 claims
- 0694US5919583AMembranes containing inorganic fillers and membrane and electrode assemblies and electrochemical cells employing sameDU PONT·Filed 1997·Granted Jul 6, 1999·176 cites·8 claims
- 0794US5547911AProcess of imprinting catalytically active particles on membraneDU PONT·Filed 1994·Granted Aug 20, 1996·66 cites·13 claims
- 0893US5281680APolymerization of fluorinated copolymersDU PONT·Filed 1993·Granted Jan 25, 1994·87 cites·9 claims
- 0993US4469744AProtective clothing of fabric containing a layer of highly fluorinated ion exchange polymerDU PONT·Filed 1981·Granted Sep 4, 1984·76 cites·33 claims
- 1092US4544458AFluorinated ion exchange polymer containing carboxylic groups, process for making same, and film and membrane thereofDU PONT·Filed 1980·Granted Oct 1, 1985·55 cites·34 claims
- 1191US4518650AProtective clothing of fabric containing a layer of highly fluorinated ion exchange polymerDU PONT·Filed 1981·Granted May 21, 1985·61 cites·21 claims
- 1291US4267364AFluorinated ion exchange polymer containing carboxylic groups, process for making same, and film and membrane thereofDU PONT·Filed 1978·Granted May 12, 1981·45 cites·3 claims
- 1390US9005411B2Electrochemical compression systemXERGY INC·Filed 2013·Granted Apr 14, 2015·8 cites·15 claims
- 1490US6733914B1Fuel cell membranesION POWER INC·Filed 2001·Granted May 11, 2004·48 cites·9 claims
- 1588US3969285AHeat-treated fluorocarbon sulfonylamine cation permselectivityDU PONT·Filed 1973·Granted Jul 13, 1976·48 cites·5 claims
- 1682US4021327AReinforced cation permeable separatorDU PONT·Filed 1975·Granted May 3, 1977·29 cites·19 claims
- 1778US5411575AHydrometallurgical extraction processDU PONT·Filed 1994·Granted May 2, 1995·29 cites·25 claims
- 1877US4085071AIon exchange polymer film, consisting of fluorinated polymer with N-monosubstituted sulfonamido groups method and apparatus for electrolysis of alkali or alkaline earth metal halideDU PONT·Filed 1975·Granted Apr 18, 1978·23 cites·19 claims
- 1977US3985501AIon-exchange fabric of fluorinated polymer containing pendant side chains with sulfonyl groupsDU PONT·Filed 1974·Granted Oct 12, 1976·16 cites·3 claims
- 2077US3940916AKnitted or woven ion exchange fabric containing low denier filamentsDU PONT·Filed 1974·Granted Mar 2, 1976·15 cites·11 claims
- 2171US5310765AProcess for hydrolysis of ion exchange membranesDU PONT·Filed 1993·Granted May 10, 1994·25 cites·7 claims
- 2266US4026783AElectrolysis cell using cation exchange membranes of improved permselectivityDU PONT·Filed 1976·Granted May 31, 1977·16 cites·2 claims
- 2364US4030988AProcess for producing halogen and metal hydroxides with cation exchange membranes of improved permselectivityDU PONT·Filed 1976·Granted Jun 21, 1977·15 cites·2 claims
- 2459US5667557AHydrometallurgical extraction and recovery of copper, gold, and silver via cyanidation and electrowinningDU PONT·Filed 1995·Granted Sep 16, 1997·16 cites·11 claims
- 2554US4591439AIon exchange process and apparatusDU PONT·Filed 1985·Granted May 27, 1986·12 cites·5 claims
- 2651US5807421AHydrometallurgical extraction processDU PONT·Filed 1996·Granted Sep 15, 1998·9 cites·7 claims
- 2747US5534576ASealant for electrochemical cellsDU PONT·Filed 1990·Granted Jul 9, 1996·9 cites·13 claims
- 2846US4113585AMethod and apparatus for electrolysis of alkali or alkaline earth metal halideDU PONT·Filed 1977·Granted Sep 12, 1978·7 cites·27 claims
- 2942US4415679AProcess for esterifying fluorinated carboxylic acid polymerDU PONT·Filed 1981·Granted Nov 15, 1983·4 cites·14 claims
- 3040US5484503AProcess for sealing membrane in electrochemical cellDU PONT·Filed 1993·Granted Jan 16, 1996·6 cites·7 claims
- 3131US5181791AApplicator for applying sealant for electrochemical cellDU PONT·Filed 1991·Granted Jan 26, 1993·2 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Walther G. Grot files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →