GJERDE; Douglas T.
Patent Applications and Registrations
Patent applications and USPTO patent grants for GJERDE; Douglas T..The latest application filed is for "method and device for sample preparation".
Company Profile
27.114.123
- GJERDE; Douglas T. - Saratoga CA
- Gjerde; Douglas T. - N/A
- Gjerde; Douglas T. - US
- Gjerde; Douglas T. - Ames IA
Patent Activity
| Patent | Date |
|---|---|
| Method And Device For Sample Preparation App 20220184528 - WILLIAMS; Lee ; et al. | 2022-06-16 |
| Devices and methods for plasmid purification Grant 11,274,292 - Suh , et al. March 15, 2 | 2022-03-15 |
| Methods, Devices and Kits for Preparing Nucleic Acid Samples For Storage and Analysis App 20210355525 - GJERDE; Douglas T. ; et al. | 2021-11-18 |
| Isolation, detection and use of biological cells Grant 11,137,327 - Gjerde October 5, 2 | 2021-10-05 |
| Columns for isolation, detection and use of biological cells Grant 11,097,207 - Gjerde August 24, 2 | 2021-08-24 |
| Methods for purifying biological cells Grant 11,077,389 - Gjerde August 3, 2 | 2021-08-03 |
| Qualitative Analysis Of Proteins App 20210148925 - HOANG; Lee ; et al. | 2021-05-20 |
| Devices And Methods For Plasmid Purification App 20210087551 - SUH; Chris ; et al. | 2021-03-25 |
| Columns and Methods of Use for Analytical Standards and Compounds App 20210072201 - Jakschitz; Thomas ; et al. | 2021-03-11 |
| Devices and methods for plasmid purification Grant 10,883,100 - Suh , et al. January 5, 2 | 2021-01-05 |
| Isolation, detection and use of biological cells Grant 10,830,676 - Gjerde November 10, 2 | 2020-11-10 |
| Methods and devices for nucleic acid purification Grant 10,597,652 - Suh , et al. | 2020-03-24 |
| Devices and Methods for Plasmid Purification App 20200056168 - Suh; Chris ; et al. | 2020-02-20 |
| Columns for Isolation, Detection and Use of Biological Cells App 20190358562 - Gjerde; Douglas T. | 2019-11-28 |
| Method and Apparatus for Pipette Tip Columns App 20190247846 - Suh; Chris ; et al. | 2019-08-15 |
| Methods for Purifying Biological Cells App 20190232196 - Gjerde; Douglas T. | 2019-08-01 |
| Methods for purifying biological cells Grant 10,307,693 - Gjerde | 2019-06-04 |
| Columns for isolation, detection and use of biological cells Grant 10,220,332 - Gjerde | 2019-03-05 |
| Isolation, Detection and Use of Biological Cells App 20190049351 - Gjerde; Douglas T. | 2019-02-14 |
| Isolation, Detection and Use of Biological Cells App 20190041306 - Gjerde; Douglas T. | 2019-02-07 |
| Isolation, detection and use of biological cells Grant 10,107,729 - Gjerde October 23, 2 | 2018-10-23 |
| Columns for Isolation, Detection and Use of Biological Cells App 20180178142 - Gjerde; Douglas T. | 2018-06-28 |
| Devices and methods for purification, detection and use of biological cells Grant 9,920,294 - Gjerde March 20, 2 | 2018-03-20 |
| Method and apparatus for pipette tip columns Grant 9,891,148 - Gjerde , et al. February 13, 2 | 2018-02-13 |
| Devices and Methods for Plasmid Purification App 20170233721 - Suh; Chris ; et al. | 2017-08-17 |
| Devices And Methods For Plasmid Purification App 20170211129 - Suh; Chris ; et al. | 2017-07-27 |
| Devices and methods for purification of biological cells Grant 9,637,719 - Gjerde May 2, 2 | 2017-05-02 |
| Methods And Devices For Nucleic Acid Purification App 20170029809 - Suh; Chris ; et al. | 2017-02-02 |
| Methods for Purifying Biological Cells App 20160375377 - Gjerde; Douglas T. | 2016-12-29 |
| Isolation, Detection and Use of Biological Cells App 20160223441 - Gjerde; Douglas T. | 2016-08-04 |
| Methods for purifying biological cells Grant 9,370,732 - Gjerde June 21, 2 | 2016-06-21 |
| Purification of nucleic acids Grant 9,328,342 - Suh , et al. May 3, 2 | 2016-05-03 |
| Method and Apparatus for Pipette Tip Columns App 20160061697 - Gjerde; Douglas T. ; et al. | 2016-03-03 |
| Method and apparatus for pipette tip columns Grant 9,242,244 - Gjerde , et al. January 26, 2 | 2016-01-26 |
| Devices and Methods for Purification, Detection and Use of Biological Cells App 20160017272 - Gjerde; Douglas T. | 2016-01-21 |
| Isolation of phosphoproteins, glycoproteins and fragments thereof Grant 9,120,847 - Rainer , et al. September 1, 2 | 2015-09-01 |
| Devices and Methods for Purification of Biological Cells App 20150240229 - Gjerde; Douglas T. | 2015-08-27 |
| Method and device for extracting an analyte Grant 9,114,383 - Gjerde , et al. August 25, 2 | 2015-08-25 |
| Methods And Devices For Nucleic Acid Purification App 20150119563 - Suh; Chris ; et al. | 2015-04-30 |
| Methods and devices for nucleic acid purification Grant 8,921,539 - Suh , et al. December 30, 2 | 2014-12-30 |
| Purification of Nucleic Acids App 20140370590 - Suh; Chris ; et al. | 2014-12-18 |
| Isolation of Phosphoproteins, Glycoproteins and Fragments thereof App 20140329991 - Rainer; Matthias ; et al. | 2014-11-06 |
| Isolation of phosphoproteins, glycoproteins and fragments thereof Grant 8,835,612 - Polato , et al. September 16, 2 | 2014-09-16 |
| Dissolvable Bed Chromatographic Column and Methods of Use App 20140251918 - Rainer; Matthias ; et al. | 2014-09-11 |
| Purification of nucleic acids Grant 8,816,064 - Suh , et al. August 26, 2 | 2014-08-26 |
| Methods for Purifying Biological Cells App 20140234890 - Gjerde; Douglas T. | 2014-08-21 |
| Isolation of Phosphoproteins, Glycoproteins and Fragments thereof App 20140200330 - Rainer; Matthias ; et al. | 2014-07-17 |
| Low dead volume extraction column device Grant 8,748,194 - Gjerde , et al. June 10, 2 | 2014-06-10 |
| Method and device for sample preparation Grant 8,679,857 - Suh , et al. March 25, 2 | 2014-03-25 |
| Low Dead Volume Extraction Column Device App 20130316469 - Gjerde; Douglas T. ; et al. | 2013-11-28 |
| Method and Device for Sample Preparation App 20130252344 - Suh; Chris ; et al. | 2013-09-26 |
| Low dead volume extraction column device Grant 8,501,116 - Gjerde , et al. August 6, 2 | 2013-08-06 |
| Open channel solid phase extraction systems and methods Grant 8,399,055 - Bakry , et al. March 19, 2 | 2013-03-19 |
| Method and device for sample preparation Grant 8,377,715 - Suh , et al. February 19, 2 | 2013-02-19 |
| Open channel solid phase extraction systems and methods Grant 8,361,806 - Gjerde , et al. January 29, 2 | 2013-01-29 |
| Open channel solid phase extraction systems and methods Grant 8,362,219 - Gjerde , et al. January 29, 2 | 2013-01-29 |
| Methods And Devices For Nucleic Acid Purification App 20120252115 - Suh; Chris ; et al. | 2012-10-04 |
| Method and Device for Sample Preparation App 20120164750 - Gjerde; Douglas T. ; et al. | 2012-06-28 |
| Isolation of Phosphoproteins, Glycoproteins and Fragments thereof App 20120088906 - Polato; Fabio ; et al. | 2012-04-12 |
| Purification of Nucleic acids App 20120083598 - Suh; Chris ; et al. | 2012-04-05 |
| Method and device for extracting an analyte Grant 8,148,169 - Gjerde , et al. April 3, 2 | 2012-04-03 |
| Method and device for sample preparation Grant 8,148,168 - Gjerde , et al. April 3, 2 | 2012-04-03 |
| Method and device for extracting an analyte Grant 8,143,071 - Gjerde March 27, 2 | 2012-03-27 |
| Pipette tip containing particle-filled polymer monolith Grant 8,105,513 - Bonn , et al. January 31, 2 | 2012-01-31 |
| Method and Device for Extracting an Analyte App 20120018381 - Gjerde; Douglas T. ; et al. | 2012-01-26 |
| Low Dead Volume Extraction Column Device App 20110293490 - Gjerde; Douglas T. ; et al. | 2011-12-01 |
| Method and device for extracting an analyte Grant 8,057,668 - Gjerde , et al. November 15, 2 | 2011-11-15 |
| Method and device for preparing an analyte for analysis by mass spectrometry Grant 8,053,247 - Feuerstein , et al. November 8, 2 | 2011-11-08 |
| Method and Device for Extracting an Analyte App 20110192797 - Gjerde; Douglas T. ; et al. | 2011-08-11 |
| Method and Apparatus for Pipette Tip Columns App 20110195518 - Gjerde; Douglas T. ; et al. | 2011-08-11 |
| Open Channel Solid Phase Extraction Systems and Methods App 20110118452 - Gjerde; Douglas T. ; et al. | 2011-05-19 |
| Method and device for extracting an analyte Grant 7,943,393 - Gjerde , et al. May 17, 2 | 2011-05-17 |
| Method and Device for Extracting an Analyte App 20110042317 - Gjerde; Douglas T. ; et al. | 2011-02-24 |
| Method and Device for Sample Preparation App 20110038769 - Gjerde; Douglas T. ; et al. | 2011-02-17 |
| Open channel solid phase extraction systems and methods Grant 7,879,621 - Gjerde , et al. February 1, 2 | 2011-02-01 |
| Method and device for sample preparation Grant 7,875,462 - Gjerde , et al. January 25, 2 | 2011-01-25 |
| Method and device for extracting an analyte Grant 7,837,871 - Gjerde , et al. November 23, 2 | 2010-11-23 |
| Method And Device For Sample Preparation App 20100200509 - Suh; Chris ; et al. | 2010-08-12 |
| Method and Device for Sample Preparation App 20100179308 - Gjerde; Douglas T. ; et al. | 2010-07-15 |
| Method and Device for Gravity Flow Chromatography App 20100170852 - Suh; Chris ; et al. | 2010-07-08 |
| Method and Device for Gravity Flow Chromatography App 20100140173 - Suh; Chris ; et al. | 2010-06-10 |
| Highly Parallel Gel-Free Cloning Method App 20100129873 - Suh; Chris ; et al. | 2010-05-27 |
| Method and device for sample preparation Grant 7,722,820 - Gjerde , et al. May 25, 2 | 2010-05-25 |
| Open Channel Solid Phase Extraction Systems and Methods App 20100111771 - Gjerde; Douglas T. ; et al. | 2010-05-06 |
| Pipette Tip Containing Particle-Filled Polymer Monolith App 20100009845 - Bonn; Alexander ; et al. | 2010-01-14 |
| Solid-phase synthesis is a capillary Grant 7,612,165 - Gjerde November 3, 2 | 2009-11-03 |
| Method and Device for Desalting an Analyte App 20090223893 - Gjerde; Douglas T. ; et al. | 2009-09-10 |
| Low Dead Volume Extraction Column Device App 20090081084 - Gjerde; Douglas T. ; et al. | 2009-03-26 |
| Method and device for extracting an analyte Grant 7,488,603 - Gjerde , et al. February 10, 2 | 2009-02-10 |
| Low dead volume extraction column device Grant 7,482,169 - Gjerde , et al. January 27, 2 | 2009-01-27 |
| Method and device for extracting an analyte App 20080214794 - Gjerde; Douglas T. | 2008-09-04 |
| Method for extracting an analyte App 20080145950 - Gjerde; Douglas T. | 2008-06-19 |
| Pipette tip column, resin and method of use for extracting an analyte App 20080119637 - Gjerde; Douglas T. ; et al. | 2008-05-22 |
| Method and device for preparing an analyte for analysis by mass spectrometry App 20080090295 - Feuerstein; Isabel ; et al. | 2008-04-17 |
| Open channel solid phase extraction systems and methods App 20070196833 - Gjerde; Douglas T. | 2007-08-23 |
| Methods and compositions for mutation analysis App 20070161010 - Gjerde; Douglas T. ; et al. | 2007-07-12 |
| System and method for automated matched ion polynucleotide chromatography Grant 7,225,079 - Gjerde , et al. May 29, 2 | 2007-05-29 |
| Open channel solid phase extraction systems and methods Grant 7,151,167 - Gjerde , et al. December 19, 2 | 2006-12-19 |
| Liquid chromatographic separation of polynucleotides Grant 7,138,518 - Gjerde , et al. November 21, 2 | 2006-11-21 |
| Open channel solid phase extraction systems and methods Grant 7,122,640 - Gjerde , et al. October 17, 2 | 2006-10-17 |
| Method for optimizing a purification procedure App 20060202922 - Hanna; Christopher P. ; et al. | 2006-09-14 |
| Solid-phase synthesis is a capillary App 20060199945 - Gjerde; Douglas T. | 2006-09-07 |
| Method and device for sample preparation App 20060198765 - Gjerde; Douglas T. ; et al. | 2006-09-07 |
| Method and article for sealing a microplate App 20060188404 - Gjerde; Douglas T. | 2006-08-24 |
| Method and device for sample preparation App 20060124551 - Gjerde; Douglas T. ; et al. | 2006-06-15 |
| Method and device for desalting an analyte App 20060118491 - Gjerde; Douglas T. ; et al. | 2006-06-08 |
| Method and device for extracting an analyte App 20050258097 - Gjerde, Douglas T. ; et al. | 2005-11-24 |
| Method and device for extracting an analyte App 20050255604 - Gjerde, Douglas T. ; et al. | 2005-11-17 |
| Detection of silanol groups on a surface App 20050130309 - Gjerde, Douglas T. | 2005-06-16 |
| Method and device for extracting an analyte App 20050045543 - Gjerde, Douglas T. ; et al. | 2005-03-03 |
| Method and device for extracting an analyte App 20050019951 - Gjerde, Douglas T. ; et al. | 2005-01-27 |
| Method and device for extracting an analyte App 20050016921 - Gjerde, Douglas T. ; et al. | 2005-01-27 |
| Modifying double stranded DNA to enhance separations by matched ion polynucleotide chromatography Grant 6,838,242 - Gjerde , et al. January 4, 2 | 2005-01-04 |
| Open channel solid phase extraction systems and methods App 20040241721 - Gjerde, Douglas T. ; et al. | 2004-12-02 |
| Biomolecule open channel solid phase extraction systems and methods App 20040224425 - Gjerde, Douglas T. ; et al. | 2004-11-11 |
| Open channel solid phase extraction systems and methods App 20040224362 - Gjerde, Douglas T. ; et al. | 2004-11-11 |
| Open channel solid phase extraction systems and methods App 20040223880 - Gjerde, Douglas T. ; et al. | 2004-11-11 |
| Three-dimensional solid phase extraction surfaces App 20040224329 - Gjerde, Douglas T. ; et al. | 2004-11-11 |
| Biomolecule open channel solid phase extraction systems and methods App 20040126890 - Gjerde, Douglas T. ; et al. | 2004-07-01 |
| Low dead volume extraction column device App 20040072375 - Gjerde, Douglas T. ; et al. | 2004-04-15 |
| Mutation detection method App 20040034211 - Gjerde, Douglas T. ; et al. | 2004-02-19 |
| Column for DNA separation by matched ion polynucleotide chromatography Grant 6,652,745 - Gjerde , et al. November 25, 2 | 2003-11-25 |
| Process for separation of polynucleotide fragments Grant 6,642,374 - Gjerde , et al. November 4, 2 | 2003-11-04 |
| Methods and compositions for mutation analysis App 20030175723 - Gjerde, Douglas T. ; et al. | 2003-09-18 |
| System and method for automated matched ion polynucleotide chromatography App 20030165941 - Gjerde, Douglas T. ; et al. | 2003-09-04 |
| Mutation detection method App 20030144500 - Gjerde, Douglas T. ; et al. | 2003-07-31 |
| System and method for performing polynucleotide separations using liquid chromatography Grant 6,579,459 - Gjerde , et al. June 17, 2 | 2003-06-17 |
| Non-polar media for polynucloetide separations App 20030102260 - Gjerde, Douglas T. ; et al. | 2003-06-05 |
| Non-polar media for polynucleotide separations App 20030075503 - Gjerde, Douglas T. ; et al. | 2003-04-24 |
| Modifying double stranded DNA to enhance separations by matched ion polynucleotide chromatography App 20030064524 - Gjerde, Douglas T. ; et al. | 2003-04-03 |
| Process for performing polynucleotide separations App 20030057154 - Gjerde, Douglas T. ; et al. | 2003-03-27 |
| Method and system for the preparation of cDNA Grant 6,521,411 - Hecker , et al. February 18, 2 | 2003-02-18 |
| Analysis of nicked DNA by matched ion polynucleotide chromatography App 20020197638 - Gjerde, Douglas T. ; et al. | 2002-12-26 |
| Apparatus and method for separating and purifying polynucleotides App 20020197629 - Gjerde, Douglas T. ; et al. | 2002-12-26 |
| System and method for performing polynucleotide separations using liquid chromatography App 20020185441 - Gjerde, Douglas T. ; et al. | 2002-12-12 |
| Non-polar media for polynucleotide separations Grant 6,488,855 - Gjerde , et al. December 3, 2 | 2002-12-03 |
| Method and system for RNA analysis by matched ion polynucleotide chromatography Grant 6,475,388 - Gjerde , et al. November 5, 2 | 2002-11-05 |
| Method for high resolution liquid chromatographic separation of homoduplex and heteroduplex DNA App 20020158017 - Gjerde, Douglas T. ; et al. | 2002-10-31 |
| Process for performing polynucleotide separations Grant 6,471,866 - Gjerde , et al. October 29, 2 | 2002-10-29 |
| Method and system for RNA analysis by matched ion polynucleotide chromatography App 20020153312 - Gjerde, Douglas T. ; et al. | 2002-10-24 |
| Band array display of polynucleotide separations App 20020123063 - Gjerde, Douglas T. ; et al. | 2002-09-05 |
| Apparatus and method for separating and purifying polynucleotides App 20020102563 - Gjerde, Douglas T. ; et al. | 2002-08-01 |
| Column for DNA separation by matched ion polynucleotide chromatography App 20020092811 - Gjerde, Douglas T. ; et al. | 2002-07-18 |
| Apparatus and method for separating and purifying polynucleotides Grant 6,419,824 - Gjerde , et al. July 16, 2 | 2002-07-16 |
| Method and system for the preparation of cDNA App 20020062017 - Hecker, Karl H. ; et al. | 2002-05-23 |
| Column for DNA separation by matched ion polynucleotide chromatography Grant 6,372,142 - Gjerde , et al. April 16, 2 | 2002-04-16 |
| Non-polar media for polynucleotide separations Grant 6,372,130 - Gjerde , et al. April 16, 2 | 2002-04-16 |
| Non-polar media for polynucleotide separations App 20020038786 - Gjerde, Douglas T. ; et al. | 2002-04-04 |
| System and method for performing polynucleotide separations using liquid chromatography App 20020036169 - Gjerde, Douglas T. ; et al. | 2002-03-28 |
| Polynucleotide separations on polymeric separation media Grant 6,355,791 - Gjerde , et al. March 12, 2 | 2002-03-12 |
| Method for high resolution liquid chromatographic separation of double-stranded DNA Grant 6,342,161 - Gjerde , et al. January 29, 2 | 2002-01-29 |
| Non-polar media for polynucleotide separations App 20020003109 - Gjerde, Douglas T. ; et al. | 2002-01-10 |
| System and method for performing polynucleotide separations using liquid chromatography App 20010047961 - Gjerde, Douglas T. ; et al. | 2001-12-06 |
| Method and system for RNA analysis by matched ion polynucleotide chromatography App 20010042714 - Gjerde, Douglas T. ; et al. | 2001-11-22 |
| Polynucleotide separations on polymeric separation Grant 6,309,549 - Gjerde , et al. October 30, 2 | 2001-10-30 |
| Polynucleotide separations on polymeric separation media App 20010032817 - Gjerde, Douglas T. ; et al. | 2001-10-25 |
| Polynucleotide separations on polymeric separation App 20010030156 - Gjerde, Douglas T. ; et al. | 2001-10-18 |
| Non-polar media for polynucleotide separations App 20010023848 - Gjerde, Douglas T. ; et al. | 2001-09-27 |
| Process for separation of polynucleotide fragments App 20010023290 - Gjerde, Douglas T. ; et al. | 2001-09-20 |
| Apparatus and method for separating and purifying polynucleotides Grant 6,265,168 - Gjerde , et al. July 24, 2 | 2001-07-24 |
| Band Array Display Of Polynucleotide Separations App 20010008761 - GJERDE, DOUGLAS T. ; et al. | 2001-07-19 |
| Modifying double stranded DNA to enhance separations by matched ion polynucleotide chromatography Grant 6,210,885 - Gjerde , et al. April 3, 2 | 2001-04-03 |
| Process for separation of polynucleotide fragments Grant 6,177,559 - Gjerde , et al. January 23, 2 | 2001-01-23 |
| Method for performing polynucleotide separations using liquid chromatography Grant 6,174,441 - Gjerde , et al. January 16, 2 | 2001-01-16 |
| Process for performing polynucleotide separations Grant 6,156,206 - Gjerde , et al. December 5, 2 | 2000-12-05 |
| MIPC chromatographic apparatus with improved temperature control Grant 6,103,112 - Sutton , et al. August 15, 2 | 2000-08-15 |
| Polynucleotide separations on polymeric separation media Grant 6,066,258 - Gjerde , et al. May 23, 2 | 2000-05-23 |
| Apparatus for performing polynucleotide separations using liquid chromatography Grant 6,030,527 - Gjerde , et al. February 29, 2 | 2000-02-29 |
| Chromatographic method for mutation detection using mutation site specifically acting enzymes and chemicals Grant 6,027,898 - Gjerde , et al. February 22, 2 | 2000-02-22 |
| Method for high resolution liquid chromatographic separation of polynucleotides Grant 6,024,878 - Gjerde , et al. February 15, 2 | 2000-02-15 |
| Method for performing polynucleotide separations using liquid chromatography Grant 5,997,742 - Gjerde , et al. December 7, 1 | 1999-12-07 |
| Process for performing polynucleotide separations Grant 5,972,222 - Gjerde , et al. October 26, 1 | 1999-10-26 |
| System and method for performing nucleic acid separations using liquid chromatography Grant 5,772,889 - Gjerde , et al. June 30, 1 | 1998-06-30 |
| Method for particulate reagent sample treatment Grant 5,393,673 - Gjerde , et al. February 28, 1 | 1995-02-28 |
| Method of preventing contamination of a chromatography column Grant 5,338,448 - Gjerde August 16, 1 | 1994-08-16 |
| Fluid analysis with particulate reagent suspension Grant 5,149,661 - Gjerde , et al. September 22, 1 | 1992-09-22 |
| Method and apparatus for chromatographic quantitative analysis Grant 4,272,246 - Fritz , et al. June 9, 1 | 1981-06-09 |
Company Registrations
| SEC | 0001133730 | GJERDE DOUGLAS T |
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