Patents by Inventor Thomas R. Berkelman

Thomas R. Berkelman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10119934
    Abstract: Polyacrylamide gels that offer high resolution in protein separations and are more stable relative to hydrolysis than conventional polyacrylamide gels that rely on Tris or Tris-Bis as buffering agents are made by incorporating triethanolamine in place of most or all of the Tris or Tris-Bis.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: November 6, 2018
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Craig Rowell, Cory Panattoni, Thomas R. Berkelman, Sean Cater, Shane Petersen, Lee Olech, Xuemei Yang
  • Patent number: 9689840
    Abstract: Conjugates of 1,3-bis(1,4,7-triazacyclonon-1-yl)-2-hydroxypropanes with a variety of conjugating members are used in the formation of dinuclear metal complexes which bind to phosphate esters. By virtue of their conjugated forms, the complexes are incorporated into chromatographic media, affinity binding reagents, and dyes, which make the complexes useful in a wide range of assays, separations, and purifications. In addition, dinuclear metal complexes of 1,3-bis(1,4,7-triazacyclonon-1-yl)-2-hydroxypropanes that are not so conjugated are used in the detection of phosphate esters of biological species by either MALDI-TOF mass spectrometry or by dye displacement.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: June 27, 2017
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Thomas R. Berkelman, Lisandra Martin, Rhiannon Jones, John Walker, II
  • Publication number: 20170067852
    Abstract: Polyacrylamide gels that offer high resolution in protein separations and are more stable relative to hydrolysis than conventional polyacrylamide gels that rely on Tris or Tris-Bis as buffering agents are made by incorporating triethanolamine in place of most or all of the Tris or Tris-Bis.
    Type: Application
    Filed: September 21, 2016
    Publication date: March 9, 2017
    Inventors: Craig Rowell, Cory Panattoni, Thomas R. Berkelman, Sean Cater, Shane Petersen, Lee Olech, Xuemei Yang
  • Patent number: 9486741
    Abstract: Polyacrylamide gels that offer high resolution in protein separations and are more stable relative to hydrolysis than conventional polyacrylamide gels that rely on Tris or Tris-Bis as buffering agents are made by incorporating triethanolamine in place of most or all of the Tris or Tris-Bis.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: November 8, 2016
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Craig Rowell, Cory Panattoni, Thomas R. Berkelman, Sean Cater, Shane Petersen, Lee Olech, Xuemei Yang
  • Publication number: 20160223491
    Abstract: Conjugates of 1,3-bis(1,4,7-triazacyclonon-1-yl)-2-hydroxypropanes with a variety of conjugating members are used in the formation of dinuclear metal complexes which bind to phosphate esters. By virtue of their conjugated forms, the complexes are incorporated into chromatographic media, affinity binding reagents, and dyes, which make the complexes useful in a wide range of assays, separations, and purifications. In addition, dinuclear metal complexes of 1,3-bis(1,4,7-triazacyclonon-1-yl)-2-hydroxypropanes that are not so conjugated are used in the detection of phosphate esters of biological species by either MALDI-TOF mass spectrometry or by dye displacement.
    Type: Application
    Filed: February 4, 2016
    Publication date: August 4, 2016
    Inventors: Thomas R. Berkelman, Lisandra Martin, Rhiannon Jones, John Walker, II
  • Patent number: 9274103
    Abstract: Conjugates of 1,3-bis(1,4,7-triazacyclonon-1-yl)-2-hydroxypropanes with a variety of conjugating members are used in the formation of dinuclear metal complexes which bind to phosphate esters. By virtue of their conjugated forms, the complexes are incorporated into chromatographic media, affinity binding reagents, and dyes, which make the complexes useful in a wide range of assays, separations, and purifications. In addition, dinuclear metal complexes of 1,3-bis(1,4,7-triazacyclonon-1-yl)-2-hydroxypropanes that are not so conjugated are used in the detection of phosphate esters of biological species by either MALDI-TOF mass spectrometry or by dye displacement.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: March 1, 2016
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Thomas R. Berkelman, Lisandra Martin, Rhiannon Jones, John Walker, II
  • Publication number: 20140057293
    Abstract: Conjugates of 1,3-bis(1,4,7-triazacyclonon-1-yl)-2-hydroxypropanes with a variety of conjugating members are used in the formation of dinuclear metal complexes which bind to phosphate esters. By virtue of their conjugated forms, the complexes are incorporated into chromatographic media, affinity binding reagents, and dyes, which make the complexes useful in a wide range of assays, separations, and purifications. In addition, dinuclear metal complexes of 1,3-bis(1,4,7-triazacyclonon-1-yl)-2-hydroxypropanes that are not so conjugated are used in the detection of phosphate esters of biological species by either MALDI-TOF mass spectrometry or by dye displacement.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 27, 2014
    Applicant: Bio-Rad Laboratories, Inc.
    Inventors: Thomas R. Berkelman, Lisandra Martin, Rhiannon Jones, John Walker, II
  • Publication number: 20140008226
    Abstract: Polyacrylamide gels that offer high resolution in protein separations and are more stable relative to hydrolysis than conventional polyacrylamide gels that rely on Tris or Tris-Bis as buffering agents are made by incorporating triethanolamine in place of most or all of the Tris or Tris-Bis.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 9, 2014
    Applicant: Bio-Rad Laboratories
    Inventors: Craig Rowell, Cory Panattoni, Thomas R. Berkelman, Sean Cater, Shane Petersen, Lee Olech, Xuemei Yang
  • Patent number: 8536162
    Abstract: Conjugates of 1,3-bis(1,4,7-triazacyclonon-1-yl)-2-hydroxypropanes with a variety of conjugating members are used in the formation of dinuclear metal complexes which bind to phosphate esters. By virtue of their conjugated forms, the complexes are incorporated into chromatographic media, affinity binding reagents, and dyes, which make the complexes useful in a wide range of assays, separations, and purifications. In addition, dinuclear metal complexes of 1,3-bis(1,4,7-triazacyclonon-1-yl)-2-hydroxypropanes that are not so conjugated are used in the detection of phosphate esters of biological species by either MALDI-TOF mass spectrometry or by dye displacement.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: September 17, 2013
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Thomas R. Berkelman, Lisandra Martin, Rhiannon Jones, John Walker, II
  • Publication number: 20120285830
    Abstract: Polyacrylamide gels that offer high resolution in protein separations and are more stable relative to hydrolysis than conventional polyacrylamide gels that rely on Tris or Tris-Bis as buffering agents are made by incorporating triethanolamine in place of most or all of the Tris or Tris-Bis.
    Type: Application
    Filed: July 23, 2012
    Publication date: November 15, 2012
    Applicant: Bio-Rad Laboratories
    Inventors: Craig Rowell, Cory Panattoni, Thomas R. Berkelman, Sean Cater, Shane Petersen, Lee Olech, Xuemei Yang
  • Patent number: 8282800
    Abstract: Polyacrylamide gels that offer high resolution in protein separations and are more stable relative to hydrolysis than conventional polyacrylamide gels that rely on Tris or Tris-Bis as buffering agents are made by incorporating triethanolamine in place of most or all of the Tris or Tris-Bis.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: October 9, 2012
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Craig Rowell, Cory Panattoni, Thomas R. Berkelman, Sean Cater, Shane Petersen, Lee Olech, Xuemei Yang
  • Publication number: 20120058565
    Abstract: Conjugates of 1,3-bis(1,4,7-triazacyclonon-1-yl)-2-hydroxypropanes with a variety of conjugating members are used in the formation of dinuclear metal complexes which bind to phosphate esters. By virtue of their conjugated forms, the complexes are incorporated into chromatographic media, affinity binding reagents, and dyes, which make the complexes useful in a wide range of assays, separations, and purifications. In addition, dinuclear metal complexes of 1,3-bis(1,4,7-triazacyclonon-1-yl)-2-hydroxypropanes that are not so conjugated are used in the detection of phosphate esters of biological species by either MALDI-TOF mass spectrometry or by dye displacement.
    Type: Application
    Filed: March 9, 2011
    Publication date: March 8, 2012
    Applicant: BIO-RAD LABORATORIES, INC.
    Inventors: Thomas R. Berkelman, Lisandra Martin, Rhiannon Jones, John Walker, II
  • Patent number: 7863048
    Abstract: Protein dyes whose molecular structure is that of a coumarin moiety coupled to a quaternary ammonium heterocycle through a vinyl or polyvinyl linkage demonstrate the ability to associate with proteins in a non-covalent, non-specific manner at low pH, where the associated form displays a significantly higher fluorescence emission than the unassociated form. This makes the dyes useful as selective labels for proteins at the low pH and eliminates the need for the removal of extraneous components from the medium in which the proteins reside prior to detection.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: January 4, 2011
    Assignee: Bio-Rad Laboratories, Inc.
    Inventor: Thomas R. Berkelman
  • Publication number: 20100144046
    Abstract: A complex containing a transition metal ion and a plurality of donor ligands each of which is fully coordinated to the transition metal ion and is either a nitrogen donor ligand or a cyclometalated donor ligand, such that at least one of the donor ligands is a cyclometalated donor ligand bears one or more reactive groups connected to at least one of the donor ligands through a linker that includes a chain of four or more atoms. The linker offers advantages that make the complex particularly effective in labeling biomolecules and in multiplex analyses.
    Type: Application
    Filed: November 30, 2009
    Publication date: June 10, 2010
    Applicant: Bio-Rad Laboratories, Inc.
    Inventor: Thomas R. Berkelman
  • Publication number: 20100051462
    Abstract: Polyacrylamide gels that offer high resolution in protein separations and are more stable relative to hydrolysis than conventional polyacrylamide gels that rely on Tris or Tris-Bis as buffering agents are made by incorporating triethanolamine in place of most or all of the Tris or Tris-Bis.
    Type: Application
    Filed: September 1, 2009
    Publication date: March 4, 2010
    Applicant: BIO-RAD LABORATORIES, INC.
    Inventors: Craig Rowell, Cory Panattoni, Thomas R. Berkelman, Sean Cater, Shane Petersen, Lee Olech, Xuemei Yang
  • Publication number: 20100041163
    Abstract: Protein dyes whose molecular structure is that of a coumarin moiety coupled to a quaternary ammonium heterocycle through a vinyl or polyvinyl linkage demonstrate the ability to associate with proteins in a non-covalent, non-specific manner at low pH, where the associated form displays a significantly higher fluorescence emission than the unassociated form. This makes the dyes useful as selective labels for proteins at the low pH and eliminates the need for the removal of extraneous components from the medium in which the proteins reside prior to detection.
    Type: Application
    Filed: October 19, 2009
    Publication date: February 18, 2010
    Applicant: Bio-Rad Laboratories, Inc.
    Inventor: Thomas R. Berkelman
  • Patent number: 7625758
    Abstract: Protein dyes whose molecular structure is that of a coumarin moiety coupled to a quaternary ammonium heterocycle through a vinyl or polyvinyl linkage demonstrate the ability to associate with proteins in a non-covalent, non-specific manner at low pH, where the associated form displays a significantly higher fluorescence emission than the unassociated form. This makes the dyes useful as selective labels for proteins at the low pH and eliminates the need for the removal of extraneous components from the medium in which the proteins reside prior to detection.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: December 1, 2009
    Inventor: Thomas R. Berkelman