Assignee
SACHEM INC
US·54 granted patents·7 pending applications·802 citations·filing 1992–2025
Top patents by PatentIndex Score
61 records- 0192US10710891B1Morpholinium-based quaternary ammonium cation and AEI type zeolite made therewithSACHEM INC·Filed 2018·Granted Jul 14, 2020·4 cites·19 claims
- 0292US5286354AMethod for preparing organic and inorganic hydroxides and alkoxides by electrolysisSACHEM INC·Filed 1993·Granted Feb 15, 1994·121 cites·32 claims
- 0389US5389211AMethod for producing high purity hydroxides and alkoxidesSACHEM INC·Filed 1993·Granted Feb 14, 1995·82 cites·39 claims
- 0488US7994062B2Selective silicon etch processSACHEM INC·Filed 2009·Granted Aug 9, 2011·18 cites·25 claims
- 0588US7053232B2Lewis acid ionic liquidsSACHEM INC·Filed 2003·Granted May 30, 2006·20 cites·27 claims
- 0685US9120846B2Neutral zwitterionic displacer molecules for hydrophobic displacement chromatographySACHEM INC·Filed 2012·Granted Sep 1, 2015·10 cites·21 claims
- 0784US5575901AProcess for preparing organic and inorganic hydroxides or alkoxides or ammonia or organic amines from the corresponding salts by electrolysisSACHEM INC·Filed 1995·Granted Nov 19, 1996·51 cites·29 claims
- 0880US12509546B2Strong binding metal-chelating resinsSACHEM INC·Filed 2024·Granted Dec 30, 2025·0 cites·20 claims
- 0976US5853555ASynthesis of onium hydroxides from onium saltsSACHEM INC·Filed 1997·Granted Dec 29, 1998·19 cites·31 claims
- 1076US5709789AElectrochemical conversion of nitrogen containing gas to hydroxylamine and hydroxylammonium saltsSACHEM INC·Filed 1996·Granted Jan 20, 1998·40 cites·20 claims
- 1174US7632409B2Cation-exchange displacement chromatography process and cationic organic compounds for use as displacer compounds in cation-exchange displacement chromatography processSACHEM INC·Filed 2006·Granted Dec 15, 2009·3 cites·32 claims
- 1274US7192910B2Cleaning solutions and etchants and methods for using sameSACHEM INC·Filed 2004·Granted Mar 20, 2007·22 cites·30 claims
- 1374US5259888AProcess for cleaning quartz and silicon surfacesSACHEM INC·Filed 1992·Granted Nov 9, 1993·64 cites·19 claims
- 1474US2025243319A1Strong binding metal-chelating resins using macrocycle moleculesSACHEM INC·Filed 2025·Application pending·0 cites
- 1573US12331155B2Strong binding metal-chelating resins using macrocycle moleculesSACHEM INC·Filed 2022·Granted Jun 17, 2025·0 cites·19 claims
- 1673US8361779B2Buffer compoundsSACHEM INC·Filed 2010·Granted Jan 29, 2013·2 cites·11 claims
- 1773US6024855AElectrosynthesis of hydroxylammonium salts and hydroxylamine using a mediatorSACHEM INC·Filed 1998·Granted Feb 15, 2000·34 cites·29 claims
- 1873US5968338AProcess for recovering onium hydroxides from solutions containing onium compoundsSACHEM INC·Filed 1998·Granted Oct 19, 1999·40 cites·34 claims
- 1972US7867471B2Process for preparing advanced ceramic powders using onium dicarboxylatesSACHEM INC·Filed 2009·Granted Jan 11, 2011·3 cites·11 claims
- 2071US12180328B2Strong binding metal-chelating resinsSACHEM INC·Filed 2022·Granted Dec 31, 2024·0 cites·16 claims
- 2171US5447610AElectrolytic conversion of nitrogen oxides to hydroxylamine and hydroxylammonium saltsSACHEM INC·Filed 1994·Granted Sep 5, 1995·20 cites·27 claims
- 2270US6991718B2Electrochemical process for producing ionic liquidsSACHEM INC·Filed 2001·Granted Jan 31, 2006·8 cites·48 claims
- 2370US6508940B1Process for recovering onium hydroxides from solutions containing onium compoundsSACHEM INC·Filed 2000·Granted Jan 21, 2003·13 cites·36 claims
- 2468US11201321B1LimMOxFy shell formation on cathode ceramic particle for Li ion battery through onium metal oxide fluoride precursorSACHEM INC·Filed 2018·Granted Dec 14, 2021·1 cites·12 claims
- 2567US6849688B2Polymer grafted support polymersSACHEM INC·Filed 2002·Granted Feb 1, 2005·11 cites·22 claims
- 2665US10843929B2Process for SSZ-39 synthesis using modified reaction compositionSACHEM INC·Filed 2018·Granted Nov 24, 2020·0 cites·19 claims
- 2765US6087017ACorrosion resistant coating for aluminum and aluminum alloysSACHEM INC·Filed 1998·Granted Jul 11, 2000·23 cites·19 claims
- 2865US5910237AProcess for recovering organic hydroxides from waste solutionsSACHEM INC·Filed 1997·Granted Jun 8, 1999·23 cites·22 claims
- 2962US5951845AProcess for recovering organic hydroxides from waste solutionsSACHEM INC·Filed 1997·Granted Sep 14, 1999·19 cites·26 claims
- 3061US7214806B2Synthetic multiple quaternary ammonium saltsSACHEM INC·Filed 2004·Granted May 8, 2007·4 cites·5 claims
- 3160US5868916AProcess for recovering organic hydroxides from waste solutionsSACHEM INC·Filed 1997·Granted Feb 9, 1999·18 cites·25 claims
- 3260US5281311AProcess for reducing the acid content of hydroxylamine salt solutions and for preparing hydroxylamines from hydroxylamine saltsSACHEM INC·Filed 1992·Granted Jan 25, 1994·16 cites·30 claims
- 3359US5753097AProcess for purifying hydroxide compoundsSACHEM INC·Filed 1996·Granted May 19, 1998·14 cites·24 claims
- 3457US9650595B2Quaternary ammonium hydroxidesSACHEM INC·Filed 2015·Granted May 16, 2017·0 cites·4 claims
- 3556US6235162B1Ultrapure hydroxylamine compound solutions and process of making sameSACHEM INC·Filed 1998·Granted May 22, 2001·22 cites·35 claims
- 3656US6207039B1Process for recovering onium hydroxides or onium salts from solutions containing onium compounds using electrochemical ion exchangeSACHEM INC·Filed 1999·Granted Mar 27, 2001·22 cites·38 claims
- 3756US2025090435A1Preservatives for cosmetic and pharmaceutical compositionsSACHEM INC·Filed 2022·Application pending·0 cites
- 3854US5833832APreparation of onium hydroxides in an electrochemical cellSACHEM INC·Filed 1996·Granted Nov 10, 1998·13 cites·26 claims
- 3952US11884753B2Green cationization agentSACHEM INC·Filed 2022·Granted Jan 30, 2024·0 cites·15 claims
- 4052US9634321B2Oxide shell formation on inorganic substrate via oxidative polyoxoanion salt depositionSACHEM INC·Filed 2013·Granted Apr 25, 2017·0 cites·18 claims
- 4151US2022088199A1Method for protecting glycerol alkyl ethers from oxidationSACHEM INC·Filed 2021·Application pending·0 cites
- 4250US9115050B2Process for improved recovery of onium hydroxide from compositions containing process residuesSACHEM INC·Filed 2013·Granted Aug 25, 2015·0 cites·21 claims
- 4350US6217743B1Process for recovering organic hydroxides from waste solutionsSACHEM INC·Filed 1999·Granted Apr 17, 2001·17 cites·28 claims
- 4447US5576459AQuaternary nitrogen or phosphorus chiratesSACHEM INC·Filed 1995·Granted Nov 19, 1996·4 cites·3 claims
- 4546US7976638B2High negative zeta potential polyhedral silsesquioxane composition and method for damage free semiconductor wet cleanSACHEM INC·Filed 2008·Granted Jul 12, 2011·0 cites·47 claims
- 4644US10138131B2Structure directing agent for improved synthesis of zeolitesSACHEM INC·Filed 2016·Granted Nov 27, 2018·0 cites·8 claims
- 4743US7572379B2Removal of metal ions from onium hydroxides and onium salt solutionsSACHEM INC·Filed 2005·Granted Aug 11, 2009·0 cites·33 claims
- 4843US2014284278A1Cationic displacer molecules for hydrophobic displacement chromatographySACHEM INC·Filed 2012·Application pending·0 cites
- 4942US9944853B2Color inhibitor for quaternary ammonium hydroxide in non-aqueous solventSACHEM INC·Filed 2014·Granted Apr 17, 2018·0 cites·5 claims
- 5042US9634318B2Oxide shell formation on inorganic substrates via lithium polyoxoanion salt depositionSACHEM INC·Filed 2013·Granted Apr 25, 2017·0 cites·16 claims
Showing the top 50 of 61 patent records by PatentIndex Score.
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