Assignee
QIAGEN GMBH
DE·153 granted patents·129 pending applications·3,286 citations·filing 1994–2025
Top patents by PatentIndex Score
282 records- 0198US6277648B1Process and a device for the isolation of cell components such as nucleic acids from natural sourcesQIAGEN GMBH·Filed 1994·Granted Aug 21, 2001·124 cites·10 claims
- 0295US7297485B2Method for nucleic acid amplification that results in low amplification biasQIAGEN GMBH·Filed 2003·Granted Nov 20, 2007·328 cites·70 claims
- 0394US7648824B2Method of sequencing DNAQIAGEN GMBH·Filed 2008·Granted Jan 19, 2010·53 cites·9 claims
- 0494US6977148B2Multiple displacement amplificationQIAGEN GMBH·Filed 2001·Granted Dec 20, 2005·276 cites·232 claims
- 0594US6977153B2Rolling circle amplification of RNAQIAGEN GMBH·Filed 2002·Granted Dec 20, 2005·102 cites·179 claims
- 0694US5747663AProcess for the depletion or removal of endotoxinsQIAGEN GMBH·Filed 1995·Granted May 5, 1998·110 cites·18 claims
- 0793US7682790B2Compositions for the isolation and/or stabilization of nucleic acids in biological materialsQIAGEN GMBH·Filed 2007·Granted Mar 23, 2010·18 cites·19 claims
- 0893US7270953B2Compositions for isolating and/or stabilising nucleic acids in biological materialQIAGEN GMBH·Filed 2001·Granted Sep 18, 2007·60 cites·35 claims
- 0993US7074916B2Process for the separation of double-stranded/single-stranded nucleic acid structuresQIAGEN GMBH·Filed 2003·Granted Jul 11, 2006·37 cites·30 claims
- 1092US7358047B2Methods of forming circular nucleic acid probes and uses thereofQIAGEN GMBH·Filed 2004·Granted Apr 15, 2008·115 cites·6 claims
- 1192US7005266B2Nucleic acid isolation from stool samples and other inhibitor-rich biological materialsQIAGEN GMBH·Filed 2001·Granted Feb 28, 2006·50 cites·22 claims
- 1291US7074600B2Amplification of denatured and stabilized nucleic acidsQIAGEN GMBH·Filed 2002·Granted Jul 11, 2006·81 cites·202 claims
- 1391US6723510B2Methods for separating particulate substrates from solution while minimizing particle lossQIAGEN GMBH·Filed 2001·Granted Apr 20, 2004·59 cites·46 claims
- 1491US6383393B1Chromatographic purification and separation process for mixtures of nucleic acidsQIAGEN GMBH·Filed 1994·Granted May 7, 2002·173 cites·23 claims
- 1591US6020186ADevice and process for isolating nucleic acids from cell suspensionsQIAGEN GMBH·Filed 1995·Granted Feb 1, 2000·126 cites·3 claims
- 1691US5990301AProcess for the separation and purification of nucleic acids from biological sourcesQIAGEN GMBH·Filed 1995·Granted Nov 23, 1999·157 cites·17 claims
- 1790US10740883B2Background compensationQIAGEN GMBH·Filed 2016·Granted Aug 11, 2020·23 cites·16 claims
- 1890US6992182B1Method for isolating DNA from biological materialsQIAGEN GMBH·Filed 2000·Granted Jan 31, 2006·70 cites·13 claims
- 1990US6180778B1Process for the separation of double-stranded/single-stranded nucleic acid structuresQIAGEN GMBH·Filed 1995·Granted Jan 30, 2001·148 cites·30 claims
- 2089US10738069B2Method for isolating nucleic acidsQIAGEN GMBH·Filed 2017·Granted Aug 11, 2020·3 cites·22 claims
- 2189US8372637B2Method for stabilising a biological sampleQIAGEN GMBH·Filed 2008·Granted Feb 12, 2013·17 cites·13 claims
- 2289US6733777B2Cationic reagents of transfectionQIAGEN GMBH·Filed 1999·Granted May 11, 2004·89 cites·48 claims
- 2388US7838233B2Method for the treatment of a sample containing biomoleculesQIAGEN GMBH·Filed 2006·Granted Nov 23, 2010·15 cites·36 claims
- 2488US6921642B2Protein expression profilingQIAGEN GMBH·Filed 2003·Granted Jul 26, 2005·36 cites·36 claims
- 2587US12110533B2Stabilisation and isolation of extracellular nucleic acidsQIAGEN GMBH·Filed 2021·Granted Oct 8, 2024·1 cites·14 claims
- 2687US10724074B2Stabilisation of biological samplesQIAGEN GMBH·Filed 2013·Granted Jul 28, 2020·5 cites·20 claims
- 2787US7109322B2Process for the depletion or removal of endotoxinsQIAGEN GMBH·Filed 2002·Granted Sep 19, 2006·18 cites·3 claims
- 2887US7041480B2Generation of single-strand circular DNA from linear self-annealing segmentsQIAGEN GMBH·Filed 2002·Granted May 9, 2006·20 cites·20 claims
- 2987US6946250B2Process for the separation of double-stranded/single-stranded nucleic acid structuresQIAGEN GMBH·Filed 2001·Granted Sep 20, 2005·15 cites·21 claims
- 3086US7955795B2Method of whole genome amplification with reduced artifact productionQIAGEN GMBH·Filed 2003·Granted Jun 7, 2011·22 cites·28 claims
- 3186US7683035B1Method of stabilizing and/or isolating nucleic acidsQIAGEN GMBH·Filed 2000·Granted Mar 23, 2010·40 cites·34 claims
- 3286US6861213B2Use of compositions consisting of cationic compounds and proton donors for stabilizing and/or isolating nucleic acids in or from micro-organisms such as prokaryots, fungi, protozoa or algaeQIAGEN GMBH·Filed 2001·Granted Mar 1, 2005·25 cites·40 claims
- 3386US2025289841A1Method for isolating nucleic acidsQIAGEN GMBH·Filed 2024·Application pending·0 cites
- 3484US10808276B2Method for isolating nucleic acidsQIAGEN GMBH·Filed 2017·Granted Oct 20, 2020·2 cites·32 claims
- 3584US7553619B2Detection method using dissociated rolling circle amplificationQIAGEN GMBH·Filed 2002·Granted Jun 30, 2009·27 cites·136 claims
- 3684US6258930B1Process and apparatus for breaking down biological materialQIAGEN GMBH·Filed 2000·Granted Jul 10, 2001·36 cites·18 claims
- 3784US2026035684A1Method for isolating nucleic acids from plant samplesQIAGEN GMBH·Filed 2025·Application pending·0 cites
- 3884US2026035683A1Method for isolating nucleic acids from plant samplesQIAGEN GMBH·Filed 2025·Application pending·0 cites
- 3983US7510826B2Process for the depletion or removal of endotoxinsQIAGEN GMBH·Filed 2006·Granted Mar 31, 2009·4 cites·4 claims
- 4083US7285331B1Ultraphobic surfaceQIAGEN GMBH·Filed 1999·Granted Oct 23, 2007·52 cites·27 claims
- 4183US6864100B1Automated protein purification the multiwell format by vacuum filtrationQIAGEN GMBH·Filed 2000·Granted Mar 8, 2005·41 cites·31 claims
- 4283US6586585B1Method for the size reduction of high-molecular structuresQIAGEN GMBH·Filed 1996·Granted Jul 1, 2003·62 cites·9 claims
- 4383US6297371B1Process for the preparation of endotoxin-free or endotoxin-depleted nucleic acids and/or oligonucleotides for gene therapyQIAGEN GMBH·Filed 1999·Granted Oct 2, 2001·41 cites·16 claims
- 4483US6274371B1Process and device for the isolation of cell components, such as nucleic acids, from natural sourcesQIAGEN GMBH·Filed 1995·Granted Aug 14, 2001·59 cites·15 claims
- 4582US7888006B2Method for isolating DNA from biological samplesQIAGEN GMBH·Filed 2002·Granted Feb 15, 2011·15 cites·54 claims
- 4681US11104896B2Method for isolating extracellular nucleic acids using anion exchange particlesQIAGEN GMBH·Filed 2016·Granted Aug 31, 2021·2 cites·21 claims
- 4781US10144952B2Stabilization and isolation of extracellular nucleic acidsQIAGEN GMBH·Filed 2014·Granted Dec 4, 2018·4 cites·14 claims
- 4881US8008475B1Method for isolating and purifying nucleic acids on surfacesQIAGEN GMBH·Filed 2000·Granted Aug 30, 2011·10 cites·70 claims
- 4980US11085073B2Method for immobilizing a nucleic acid molecule on a solid supportQIAGEN GMBH·Filed 2016·Granted Aug 10, 2021·3 cites·15 claims
- 5080US10655122B2Method, lysis solution and kit for selectively depleting animal nucleic acids in a sampleQIAGEN GMBH·Filed 2015·Granted May 19, 2020·4 cites·15 claims
Showing the top 50 of 282 patent records by PatentIndex Score.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →