Inventor
GJERDE DOUGLAS T
US104 patents
⚠️ This page may combine multiple inventors who share the name “GJERDE DOUGLAS T”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TRANSGENOMIC INC
25 patentsUS6210885B1Apr 3, 2001
Modifying double stranded DNA to enhance separations by matched ion polynucleotide chromatography
TRANSGENOMIC INC55 citations96
US6066258AMay 23, 2000
Polynucleotide separations on polymeric separation media
TRANSGENOMIC INC39 citations96
US6027898AFeb 22, 2000
Chromatographic method for mutation detection using mutation site specifically acting enzymes and chemicals
TRANSGENOMIC INC69 citations96
US5997742ADec 7, 1999
Method for performing polynucleotide separations using liquid chromatography
TRANSGENOMIC INC41 citations96
US5772889AJun 30, 1998
System and method for performing nucleic acid separations using liquid chromatography
TRANSGENOMIC INC80 citations96
US6265168B1Jul 24, 2001
Apparatus and method for separating and purifying polynucleotides
TRANSGENOMIC INC65 citations94
US6488855B2Dec 3, 2002
Non-polar media for polynucleotide separations
TRANSGENOMIC INC24 citations93
US6258264B1Jul 10, 2001
Non-polar media for polynucleotide separations
TRANSGENOMIC INC17 citations93
US6056877AMay 2, 2000
Non-polar media for polynucleotide separations
TRANSGENOMIC INC46 citations93
US6024878AFeb 15, 2000
Method for high resolution liquid chromatographic separation of polynucleotides
TRANSGENOMIC INC28 citations93
US5986085ANov 16, 1999
Matched ion polynucleotide chromatography (MIPC) process for separation of polynucleotide fragments
TRANSGENOMIC INC21 citations93
US7225079B2May 29, 2007
System and method for automated matched ion polynucleotide chromatography
TRANSGENOMIC INC25 citations92
US6355165B1Mar 12, 2002
MIPC chromatographic apparatus with improved temperature control
TRANSGENOMIC INC27 citations92
US6103112AAug 15, 2000
MIPC chromatographic apparatus with improved temperature control
TRANSGENOMIC INC33 citations92
US6030527AFeb 29, 2000
Apparatus for performing polynucleotide separations using liquid chromatography
TRANSGENOMIC INC24 citations92
US6017457AJan 25, 2000
Method for performing polynucleotide separations using liquid chromatography
TRANSGENOMIC INC19 citations92
US5972222AOct 26, 1999
Process for performing polynucleotide separations
TRANSGENOMIC INC32 citations92
US6652745B2Nov 25, 2003
Column for DNA separation by matched ion polynucleotide chromatography
TRANSGENOMIC INC19 citations90
US6372142B1Apr 16, 2002
Column for DNA separation by matched ion polynucleotide chromatography
TRANSGENOMIC INC30 citations90
US6521411B2Feb 18, 2003
Method and system for the preparation of cDNA
TRANSGENOMIC INC40 citations86
US6218153B1Apr 17, 2001
Target DNA amplification by MIPC and PCR
TRANSGENOMIC INC20 citations86
US6372130B1Apr 16, 2002
Non-polar media for polynucleotide separations
TRANSGENOMIC INC15 citations84
US6355791B1Mar 12, 2002
Polynucleotide separations on polymeric separation media
TRANSGENOMIC INC17 citations84
US6287822B1Sep 11, 2001
Mutation detection method
TRANSGENOMIC INC16 citations84
US6174441B1Jan 16, 2001
Method for performing polynucleotide separations using liquid chromatography
TRANSGENOMIC INC16 citations84
GJERDE DOUGLAS T
14 patentsUS8148168B2Apr 3, 2012
Method and device for sample preparation
GJERDE DOUGLAS T34 citations91
US11137327B2Oct 5, 2021
Isolation, detection and use of biological cells
GJERDE DOUGLAS T6 citations84
US11097207B2Aug 24, 2021
Columns for isolation, detection and use of biological cells
GJERDE DOUGLAS T6 citations84
US11077389B2Aug 3, 2021
Methods for purifying biological cells
GJERDE DOUGLAS T6 citations84
US10830676B2Nov 10, 2020
Isolation, detection and use of biological cells
GJERDE DOUGLAS T6 citations84
US10307693B2Jun 4, 2019
Methods for purifying biological cells
GJERDE DOUGLAS T6 citations84
US10220332B2Mar 5, 2019
Columns for isolation, detection and use of biological cells
GJERDE DOUGLAS T6 citations84
US10107729B2Oct 23, 2018
Isolation, detection and use of biological cells
GJERDE DOUGLAS T8 citations84
US9920294B2Mar 20, 2018
Devices and methods for purification, detection and use of biological cells
GJERDE DOUGLAS T9 citations84
US9637719B2May 2, 2017
Devices and methods for purification of biological cells
GJERDE DOUGLAS T9 citations84
US9370732B2Jun 21, 2016
Methods for purifying biological cells
GJERDE DOUGLAS T10 citations84
US8143071B2Mar 27, 2012
Method and device for extracting an analyte
GJERDE DOUGLAS T10 citations84
US8148169B2Apr 3, 2012
Method and device for extracting an analyte
GJERDE DOUGLAS T9 citations83
US9891148B2Feb 13, 2018
Method and apparatus for pipette tip columns
GJERDE DOUGLAS T7 citations82
PHYNEXUS INC
8 patentsUS7488603B2Feb 10, 2009
Method and device for extracting an analyte
PHYNEXUS INC89 citations97
US7943393B2May 17, 2011
Method and device for extracting an analyte
PHYNEXUS INC14 citations92
US7837871B2Nov 23, 2010
Method and device for extracting an analyte
PHYNEXUS INC14 citations92
US7151167B2Dec 19, 2006
Open channel solid phase extraction systems and methods
PHYNEXUS INC32 citations92
US7482169B2Jan 27, 2009
Low dead volume extraction column device
PHYNEXUS INC38 citations91
US7122640B2Oct 17, 2006
Open channel solid phase extraction systems and methods
PHYNEXUS INC51 citations91
US8362219B2Jan 29, 2013
Open channel solid phase extraction systems and methods
PHYNEXUS INC14 citations84
US7722820B2May 25, 2010
Method and device for sample preparation
PHYNEXUS INC10 citations83
SARASEP INC
3 patentsShowing the top 50 of 104 patents by PatentIndex Score.