Patents by Inventor Umar Mahmood

Umar Mahmood 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: 20230338588
    Abstract: Provided herein are compounds useful for imaging granzyme B. An exemplary compound provided herein is useful as a radiotracer for position emission tomography (PET) and/or single photon emission tomography (SPECT) imaging. Methods of imaging granzyme B, combination therapies, and kits comprising the granzyme B imaging agents are also provided.
    Type: Application
    Filed: January 5, 2023
    Publication date: October 26, 2023
    Inventors: Umar Mahmood, Benjamin Larimer, Eric Wehrenberg-Klee
  • Patent number: 11559590
    Abstract: Provided herein are compounds useful for imaging granzyme B. An exemplary compound provided herein is useful as a radiotracer for position emission tomography (PET) and/or single photon emission tomography (SPECT) imaging. Methods of imaging granzyme B, combination therapies, and kits comprising the granzyme B imaging agents are also provided.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: January 24, 2023
    Assignee: The General Hospital Corporation
    Inventors: Umar Mahmood, Benjamin Larimer, Eric Wehrenberg-Klee
  • Publication number: 20220175975
    Abstract: Provided herein are compositions useful for imaging HER3. An exemplary composition provided herein is useful as a radiotracer for position emission tomography (PET) imaging. Methods of imaging HER3 and combination therapies comprising the HER3 imaging agents are also provided.
    Type: Application
    Filed: December 27, 2021
    Publication date: June 9, 2022
    Inventors: Umar Mahmood, Benjamin Larimer
  • Patent number: 11241511
    Abstract: Provided herein are compositions useful for imaging HER3. An exemplary composition provided herein is useful as a radiotracer for position emission tomography (PET) imaging. Methods of imaging HER3 and combination therapies comprising the HER3 imaging agents are also provided.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: February 8, 2022
    Assignee: The General Hospital Corporation
    Inventors: Umar Mahmood, Benjamin Larimer
  • Publication number: 20200121814
    Abstract: Provided herein are compositions useful for imaging HER3. An exemplary composition provided herein is useful as a radiotracer for position emission tomography (PET) imaging. Methods of imaging HER3 and combination therapies comprising the HER3 imaging agents are also provided.
    Type: Application
    Filed: December 29, 2017
    Publication date: April 23, 2020
    Inventors: Umar Mahmood, Benjamin Larimer
  • Patent number: 10605736
    Abstract: An optical imaging method for analyzing an ex vivo tissue sample of a subject is provided. The method includes obtaining the ex vivo tissue sample, preparing the ex vivo tissue sample onto a sample receptacle of an optical imaging system, and emitting excitation light toward the ex vivo tissue sample. The method also includes acquiring imaging data of light emitted by the ex vivo tissue sample in response to the excitation light, analyzing the imaging data to determine whether the ex vivo tissue sample contains pathologic tissue, and generating an output indicating to an operator whether the ex vivo tissue sample contains pathologic tissue.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: March 31, 2020
    Assignee: The General Hospital Corporation
    Inventors: Rahul Sheth, Umar Mahmood, Anthony Samir
  • Publication number: 20190224348
    Abstract: Provided herein are compounds useful for imaging granzyme B. An exemplary compound provided herein is useful as a radiotracer for position emission tomography (PET) and/or single photon emission tomography (SPECT) imaging. Methods of imaging granzyme B, combination therapies, and kits comprising the granzyme B imaging agents are also provided.
    Type: Application
    Filed: June 30, 2017
    Publication date: July 25, 2019
    Inventors: Umar Mahmood, Benjamin Larimer, Eric Wehrenberg-Klee
  • Publication number: 20160030022
    Abstract: An interventional optical molecular imaging system and method are provided for use with a biopsy introducer needle. The system includes an imaging tool configured to slide coaxially through the biopsy introducer needle toward a tip of the biopsy introducer needle. The system also includes a laser illumination source coupled to the imaging tool, a camera configured to capture images from the imaging tool, and a computer coupled to the camera and the laser illumination source. The computer includes a processor configured to activate the laser illumination source to emit light through a tip of the imaging tool, collect imaging data from the camera after activating the laser illumination source, analyze the imaging data to determine a fluorescence measurement at the tip of the imaging tool, and display an indication of the fluorescence measurement.
    Type: Application
    Filed: June 30, 2015
    Publication date: February 4, 2016
    Inventors: Rahul Sheth, Umar Mahmood, Anthony Samir
  • Publication number: 20160033414
    Abstract: An optical imaging method for analyzing an ex vivo tissue sample of a subject is provided. The method includes obtaining the ex vivo tissue sample, preparing the ex vivo tissue sample onto a sample receptacle of an optical imaging system, and emitting excitation light toward the ex vivo tissue sample. The method also includes acquiring imaging data of light emitted by the ex vivo tissue sample in response to the excitation light, analyzing the imaging data to determine whether the ex vivo tissue sample contains pathologic tissue, and generating an output indicating to an operator whether the ex vivo tissue sample contains pathologic tissue.
    Type: Application
    Filed: July 14, 2015
    Publication date: February 4, 2016
    Inventors: Rahul Sheth, Umar Mahmood, Anthony Samir
  • Patent number: 8486373
    Abstract: An intramolecularly-quenched, near infrared fluorescence probe that emits substantial fluorescence only after interaction with a target tissue (i.e., activation) is disclosed. The probe includes a polymeric backbone and a plurality of near infrared fluorochromes covalently linked to the backbone at fluorescence-quenching interaction-permissive positions separable by enzymatic cleavage at fluorescence activation sites. The probe optionally includes protective chains or fluorochrome spacers, or both. Also disclosed are methods of using the intramolecularly-quenched, near infrared fluorescence probes for in vivo optical imaging.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: July 16, 2013
    Assignee: The General Hospital Corporation
    Inventors: Ralph Weissleder, Ching-Hsuan Tung, Umar Mahmood, Lee Josephson, Alexei Bogdanov
  • Patent number: 8423127
    Abstract: An imaging system divides image pixels intensities by exposure time to generate image data in units of intensity per time. The imaging system divides a fluorescent light image in intensity per time units by an excitation light image in intensity per time units to provide a quantitative corrected fluorescent light image that is generally invariant to position of an imaging instrument relative to a biological tissue being imaged.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: April 16, 2013
    Assignee: The General Hospital Corporation
    Inventors: Umar Mahmood, Ralph Weissleder, Rahul A. Sheth, Rabi Upadhyay
  • Publication number: 20120150043
    Abstract: An imaging system divides image pixels intensities by exposure time to generate image data in units of intensity per time. The imaging system divides a fluorescent light image in intensity per time units by an excitation light image in intensity per time units to provide a quantitative corrected fluorescent light image that is generally invariant to position of an imaging instrument relative to a biological tissue being imaged.
    Type: Application
    Filed: October 17, 2011
    Publication date: June 14, 2012
    Applicant: The General Hospital Corporation
    Inventors: Umar Mahmood, Ralph Weissleder, Rahul A. Sheth, Rabi Upadhyay
  • Patent number: 8078265
    Abstract: An imaging system divides image pixels intensities by exposure time to generate image data in units of intensity per time. The imaging system divides a fluorescent light image in intensity per time units by an excitation light image in intensity per time units to provide a quantitative corrected fluorescent light image that is generally invariant to position of an imaging instrument relative to a biological tissue being imaged.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: December 13, 2011
    Assignee: The General Hospital Corporation
    Inventors: Umar Mahmood, Ralph Weissleder, Rahul A. Sheth, Rabi Upadhyay
  • Publication number: 20110152501
    Abstract: The invention relates to activatable imaging probes that include a chromophore attachment moiety and a plurality of chromophores, such as near-infrared chromophores, chemically linked to the chromophore attachment moiety so that upon activation of the imaging probe by interaction with a target molecule the optical properties of the plurality of chromophores are altered. The probe optionally includes protective chains or chromophore spacers, or both. Also disclosed are methods of using the imaging probes for in vivo and in vitro optical imaging.
    Type: Application
    Filed: January 14, 2011
    Publication date: June 23, 2011
    Applicant: THE GENERAL HOSPITAL CORPORATION
    Inventors: Ralph Weissleder, Ching-Hsuan Tung, Umar Mahmood
  • Publication number: 20100166669
    Abstract: Described are non-invasive methods for imaging pancreatic inflammation in living mammals using Magnetic Nanoparticle Probes (MNPs).
    Type: Application
    Filed: June 28, 2006
    Publication date: July 1, 2010
    Applicants: JOSLIN DIABETES CENTER, INC., THE GENERAL HOSPITAL CORPORATION
    Inventors: Diane J. Mathis, Ralph Weissleder, Umar Mahmood, Christophe O. Benoist
  • Publication number: 20100102271
    Abstract: This invention relates essential oil constituents citronellol and rose oxides and other constituents from a cold desert plant i.e. Dracocephalum heterophyllum benth, the present invention also provides a process for the extraction of the essential oil.
    Type: Application
    Filed: March 25, 2002
    Publication date: April 29, 2010
    Inventors: Vijay Kumar Kaul, Umar Mahmood, Paramvir Singh Ahuja, Brij Lal, Hans Raj Negi, Devi Naritan, Virendra Singh
  • Publication number: 20090207412
    Abstract: A beam splitter array includes first and second beam splitters and a reflector to reflect part of a beam from the second splitter. The first splitter outputs a first beam having a power spectral density comprising a substantial portion of a white light spectrum from a first output port, and a second beam of optical radiation having a power spectral density comprising a substantial portion of a first non-white spectrum and a substantial portion of a second non-white spectrum from a second output port, from an input beam received at a first angle of incidence. The second splitter receives the second beam at a second incidence angle, and reflects a substantial portion of the second beam having a power spectral density comprising the first non-white light spectrum, and transmits a substantial portion of the second beam having a power spectral density comprising the second non-white light spectrum.
    Type: Application
    Filed: December 23, 2004
    Publication date: August 20, 2009
    Inventors: Umar Mahmood, Martin A. Funovics, Ralph Weissleder
  • Publication number: 20080015446
    Abstract: An imaging system divides image pixels intensities by exposure time to generate image data in units of intensity per time. The imaging system divides a fluorescent light image in intensity per time units by an excitation light image in intensity per time units to provide a quantitative corrected fluorescent light image that is generally invariant to position of an imaging instrument relative to a biological tissue being imaged.
    Type: Application
    Filed: July 11, 2006
    Publication date: January 17, 2008
    Inventors: Umar Mahmood, Ralph Weissleder, Rahul A. Sheth, Rabi Upadhyay
  • Publication number: 20060275775
    Abstract: An intramolecularly-quenched, near infrared fluorescence probe that emits substantial fluorescence only after interaction with a target tissue (i.e., activation) is disclosed. The probe includes a polymeric backbone and a plurality of near infrared fluorochromes covalently linked to the backbone at fluorescence-quenching interaction-permissive positions separable by enzymatic cleavage at fluorescence activation sites. The probe optionally includes protective chains or fluorochrome spacers, or both. Also disclosed are methods of using the intramolecularly-quenched, near infrared fluorescence probes for in vivo optical imaging.
    Type: Application
    Filed: November 1, 2004
    Publication date: December 7, 2006
    Inventors: Ralph Weissleder, Ching-Hsuan Tung, Umar Mahmood, Lee Josephson, Alexei Bogdanov
  • Publication number: 20060247477
    Abstract: This invention relates essential oil constituents citronellol and rose oxides and other constituents from a cold desert plant i.e. Dracocephalum heterophyllum benth, the present invention also provides a process for the extraction of the essential oil.
    Type: Application
    Filed: October 21, 2005
    Publication date: November 2, 2006
    Inventors: Vijay Kaul, Umar Mahmood, Paramvir Ahuja, Brij Lal, Hans Negi, Virendra Singh, Nartan Devi