Patents by Inventor Brian Chait

Brian Chait 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).

  • Publication number: 20220367163
    Abstract: A parallel multi-beam mass spectrometer includes an ion trap and a single multi-beam time-of-flight analyzer. The trap has a plurality of alternating electrodes configured to form a plurality of quadrupoles defining a surface of the trap, wherein at least two of the plurality of quadrupoles are configured as mass filters for selective ejection of concurrent parallel beams of ions from the trap in respective predetermined ion mass-to-charge windows. The single multi-beam time-of-flight analyzer has a position sensitive detector or a plurality of individual detectors for simultaneously receiving and analyzing the concurrent parallel beams of ions.
    Type: Application
    Filed: May 24, 2022
    Publication date: November 17, 2022
    Inventors: Andrew Krutchinsky, Brian Chait
  • Publication number: 20210233753
    Abstract: A parallel multi-beam mass spectrometer includes an ion trap and a single multi-beam time-of-flight analyzer. The trap has a plurality of alternating electrodes configured to form a plurality of quadrupoles defining a surface of the trap, wherein at least two of the plurality of quadrupoles are configured as mass filters for selective ejection of concurrent parallel beams of ions from the trap in respective predetermined ion mass-to-charge windows. The single multi-beam time-of-flight analyzer has a position sensitive detector or a plurality of individual detectors for simultaneously receiving and analyzing the concurrent parallel beams of ions.
    Type: Application
    Filed: June 5, 2019
    Publication date: July 29, 2021
    Inventors: Andrew Krutchinsky, Brian Chait
  • Patent number: 9610319
    Abstract: A method of treating liver cancer using a peptide based on venom from a terebrid snail, terebrid variegata, is described. The venom has a general formula of TRX3CCGCYWNGSKDVCSQSCC (SEQ ID NO: 1) and variants thereof are described.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: April 4, 2017
    Assignees: Research Foundation of the City University of New York, The Rockefeller University
    Inventors: Mande Holford, Prachi Anand, Beatrix Ueberheide, Brian Chait
  • Publication number: 20160089416
    Abstract: This disclosure pertains to a method of treating liver cancer using a peptide based on venom from a terebrid snail, terebrid variegata. The venom has a general formula of TRX3CCGCYWNGSKDVCSQSCC (SEQ ID NO. 1) and variants thereof are described.
    Type: Application
    Filed: September 30, 2015
    Publication date: March 31, 2016
    Inventors: Mande Holford, Prachi Anand, Beatrix Ueberheide, Brian Chait
  • Publication number: 20070077600
    Abstract: The present invention is method of determining whether or not associations between a given protein and other proteins in a cell are specific.
    Type: Application
    Filed: August 21, 2006
    Publication date: April 5, 2007
    Inventors: Brian Chait, Alan Tackett, Jeffrey DeGrasse, Marlene Oeffinger, Michael Rout, Matthew Sekedat
  • Publication number: 20070045533
    Abstract: A method for manipulating ions in an ion trap includes storing ions, spatially compressing, and ejecting selected ions according to mass-to-charge ratio. An ion trap includes an injection port, an arm having a first and a second end for confining and spatially compressing the ions, and an ejection port for ejecting the ions from the second end. The arm includes two pairs of opposing electrodes, which provide a quadrupole electric field potential at any cross-section of the ion trap. The distance between opposing electrodes and the cross-sectional area of the electrodes increases from the first to second end. The electrodes may be tapered cylindrical rods or of hyperbolic cross-section. Ions selected for ejection are spatially compressed into a region at the second (wider) end. The ion trap may include one arm, with either orthogonal or axial ejection, or two arms with a central insert for orthogonal ejection.
    Type: Application
    Filed: August 31, 2005
    Publication date: March 1, 2007
    Inventors: Andrew Krutchinsky, Herbert Cohen, Brian Chait
  • Patent number: 7109479
    Abstract: A system for determining the ratio of mass to charge of an ion including a pulsed ionizer, a high pressure co-linear ion guide/accelerator, and a mass analyzer. The pulsed ionizer generates intact analyte ions from a sample of matter to be analyzed. The high pressure co-linear ion guide/accelerator is interfaced with the ion source for receipt of the intact ions of the sample. The ion guide/accelerator simultaneously dampens and linearly accelerates the intact ions in the substantial absence of fragmentation of the ions to provide a substantially continuous beam of the intact ions for mass analysis. The mass analyzer is connected to the ion guide/accelerator for receipt of the beam of ions and determines the mass to charge ratio of the intact ions.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: September 19, 2006
    Assignee: The Rockefeller University
    Inventors: Andrew Krutchinsky, Herbert Cohen, Markus Kalkum, Vadim Sherman, Brian Chait
  • Patent number: 7012249
    Abstract: Disclosed is an apparatus for examining and inspecting at least one sample in order to determine characteristics of the sample having the a support for receiving a compact disc, the compact disc having deposited on a surface thereof at least one sample, inspection means for effecting a physical change in at least one sample, the inspection means positioned for registration with the surface of the compact disc bearing at least one sample; and a traversal mechanism adapted for reciprocating movement, to move the sample in and out of the path of the inspection means.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: March 14, 2006
    Assignee: The Rockefeller University
    Inventors: Andrew Krutchinsky, Brian Chait
  • Publication number: 20050153454
    Abstract: Method is described for sequencing polypeptides by forming peptide ladders comprising a series of polypeptides in which adjacent members of the series vary by one amino acid residue and determining the identity and position of each amino acid in the polypeptide by mass spectroscopy.
    Type: Application
    Filed: December 1, 2004
    Publication date: July 14, 2005
    Applicants: The Rockefeller University, The Scripps Research Institute
    Inventors: Brian Chait, Ronald Beavis, Rong Wang, Stephen Kent
  • Publication number: 20050092912
    Abstract: A system for determining the ratio of mass to charge of an ion including a pulsed ionizer, a high pressure co-linear ion guide/accelerator, and a mass analyzer. The pulsed ionizer generates intact analyte ions from a sample of matter to be analyzed. The high pressure co-linear ion guide/accelerator is interfaced with the ion source for receipt of the intact ions of the sample. The ion guide/accelerator simultaneously dampens and linearly accelerates the intact ions in the substantial absence of fragmentation of the ions to provide a substantially continuous beam of the intact ions for mass analysis. The mass analyzer is connected to the ion guide/accelerator for receipt of the beam of ions and determines the mass to charge ratio of the intact ions.
    Type: Application
    Filed: September 28, 2004
    Publication date: May 5, 2005
    Inventors: Andrew Krutchinsky, Herbert Cohen, Markus Kalkum, Vadim Sherman, Brian Chait
  • Publication number: 20050077460
    Abstract: Disclosed is an apparatus for examining and inspecting at least one sample in order to determine characteristics of the sample having the a support for receiving a compact disc, the compact disc having deposited on a surface thereof at least one sample, inspection means for effecting a physical change in at least one sample, the inspection means positioned for registration with the surface of the compact disc bearing at least one sample; and a traversal mechanism adapted for reciprocating movement, to move the sample in and out of the path of the inspection means.
    Type: Application
    Filed: August 23, 2004
    Publication date: April 14, 2005
    Inventors: Andrew Krutchinsky, Brian Chait
  • Publication number: 20050069916
    Abstract: Disclosed are compositions and methods for sensitive detection of one or multiple analytes. In general, the methods involve the use of special label components, referred to as reporter signals, that can be associated with, incorporated into, or otherwise linked to the analytes. In some embodiments, the reporter signals can be altered such that the altered forms of different reporter signals can be distinguished from each other. In some embodiments, sets of reporter signals can be used where two or more of the reporter signals in a set have one or more common properties that allow the reporter signals having the common property to be distinguished and/or separated from other molecules lacking the common property.
    Type: Application
    Filed: April 14, 2004
    Publication date: March 31, 2005
    Inventors: Brian Chait, Darin Latimer, Paul Lizardi, Eric Kershnar, Jon Morrow, Matthew Roth, Martin Mattessich, Kevin McConnell
  • Patent number: 6809318
    Abstract: A system for determining the ratio of mass to charge of an ion including a pulsed ionizer, a high pressure co-linear ion guide/accelerator, and a mass analyzer. The pulsed ionizer generates intact analyte ions from a sample of matter to be analyzed. The high pressure co-linear ion guide/accelerator is interfaced with the ion source for receipt of the intact ions of the sample. The ion guide/accelerator simultaneously dampens and linearly accelerates the intact ions in the substantial absence of fragmentation of the ions to provide a substantially continuous beam of the intact ions for mass analysis. The mass analyzer is connected to the ion guide/accelerator for receipt of the beam of ions and determines the mass to charge ratio of the intact ions.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: October 26, 2004
    Assignee: The Rockefeller University
    Inventors: Andrew Krutchinsky, Herbert Cohen, Markus Kalkum, Vadim Sherman, Brian Chait
  • Publication number: 20040056187
    Abstract: A system for determining the ratio of mass to charge of an ion including a pulsed ionizer, a high pressure co-linear ion guide/accelerator, and a mass analyzer. The pulsed ionizer generates intact analyte ions from a sample of matter to be analyzed. The high pressure co-linear ion guide/accelerator is interfaced with the ion source for receipt of the intact ions of the sample. The ion guide/accelerator simultaneously dampens and linearly accelerates the intact ions in the substantial absence of fragmentation of the ions to provide a substantially continuous beam of the intact ions for mass analysis. The mass analyzer is connected to the ion guide/accelerator for receipt of the beam of ions and determines the mass to charge ratio of the intact ions.
    Type: Application
    Filed: September 8, 2003
    Publication date: March 25, 2004
    Applicant: THE ROCKEFELLER UNIVERSITY
    Inventors: Andrew Krutchinsky, Herbert Cohen, Markus Kalkum, Vadim Sherman, Brian Chait
  • Patent number: 6617577
    Abstract: A system for determining the ratio of mass to charge of an ion including a pulsed ionizer, a high pressure co-linear ion guide/accelerator, and a mass analyzer. The pulsed ionizer generates intact analyte ions from a sample of matter to be analyzed. The high pressure co-linear ion guide/accelerator is interfaced with the ion source for receipt of the intact ions of the sample. The ion guide/accelerator simultaneously dampens and linearly accelerates the intact ions in the substantial absence of fragmentation of the ions to provide a substantially continuous beam of the intact ions for mass analysis. The mass analyzer is connected to the ion guide/accelerator for receipt of the beam of ions and determines the mass to charge ratio of the intact ions.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: September 9, 2003
    Assignee: The Rockefeller University
    Inventors: Andrew Krutchinsky, Herbert Cohen, Markus Kalkum, Vadim Sherman, Brian Chait
  • Publication number: 20020148972
    Abstract: A system for determining the ratio of mass to charge of an ion including a pulsed ionizer, a high pressure co-linear ion guide/accelerator, and a mass analyzer. The pulsed ionizer generates intact analyte ions from a sample of matter to be analyzed. The high pressure co-linear ion guide/accelerator is interfaced with the ion source for receipt of the intact ions of the sample. The ion guide/accelerator simultaneously dampens and linearly accelerates the intact ions in the substantial absence of fragmentation of the ions to provide a substantially continuous beam of the intact ions for mass analysis. The mass analyzer is connected to the ion guide/accelerator for receipt of the beam of ions and determines the mass to charge ratio of the intact ions.
    Type: Application
    Filed: April 16, 2001
    Publication date: October 17, 2002
    Inventors: Andrew Krutchinsky, Herbert Cohen, Markus Kalkum, Vadim Sherman, Brian Chait
  • Publication number: 20020074517
    Abstract: Disclosed is an apparatus for examining and inspecting at least one sample in order to determine characteristics of the sample having the a support for receiving a compact disc, the compact disc having deposited on a surface thereof at least one sample, inspection means for effecting a physical change in at least one sample, the inspection means positioned for registration with the surface of the compact disc bearing at least one sample; and a traversal mechanism adapted for reciprocating movement, to move the sample in and out of the path of the inspection means.
    Type: Application
    Filed: December 15, 2000
    Publication date: June 20, 2002
    Inventors: Andrew Krutchinsky, Brian Chait