Patents by Inventor Nelson Alexander

Nelson Alexander 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: 20260029324
    Abstract: Disclosed herein is a method of analyzing flow cytometry data for cells derived from homogenized whole tumor samples. In some embodiments, the present disclosure is directed to a cytometric assay for distinguishing between tumor cells expressing a cell proliferation marker and normal cells expressing the cell proliferation marker. In some embodiments, the present disclosure is also directed to quantifying a percentage of normal cells expressing a cell proliferation marker and a percentage of tumor cells expressing the cell proliferation marker.
    Type: Application
    Filed: September 30, 2025
    Publication date: January 29, 2026
    Inventors: Nelson ALEXANDER, Lisa GALLEGOS, Brian Hanley, Samra Turajlic
  • Publication number: 20240210288
    Abstract: The disclosure generally relates to the preparation of representative samples from clinical samples, e.g., tumors (whole or in part), lymph nodes, metastases, cysts, polyps, or a combination or portion thereof, using mechanical and/or biochemical dissociation methods to homogenize intact samples or large portions thereof. The resulting homogenate provides the ability to obtain a correct representative sample despite spatial heterogeneity within the sample, increasing detection likelihood of low prevalence subclones, and is suitable for use in various diagnostic assays as well as the production of therapeutics, especially “personalized” anti-tumor vaccines or immune cell based therapies.
    Type: Application
    Filed: March 7, 2024
    Publication date: June 27, 2024
    Inventors: Nelson Alexander, Aoune Barhoumi, Melinda Day, Lisa Gallegos, Katherine Leith, Samantha Rajkovich, Esteban Roberts, Stacey Stanislaw, Eric Walk
  • Patent number: 11959838
    Abstract: The disclosure generally relates to the preparation of representative samples from clinical samples, e.g., tumors (whole or in part), lymph nodes, metastases, cysts, polyps, or a combination or portion thereof, using mechanical and/or biochemical dissociation methods to homogenize intact samples or large portions thereof. The resulting homogenate provides the ability to obtain a correct representative sample despite spatial heterogeneity within the sample, increasing detection likelihood of low prevalence subclones, and is suitable for use in various diagnostic assays as well as the production of therapeutics, especially “personalized” anti-tumor vaccines or immune cell based therapies.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: April 16, 2024
    Assignee: Ventana Medical Systems, Inc.
    Inventors: Nelson Alexander, Aoune Barhoumi, Melinda Day, Lisa Gallegos, Katherine Leith, Samantha Rajkovich, Esteban Roberts, Stacey Stanislaw, Eric Walk
  • Publication number: 20240077391
    Abstract: The present disclosure provides a method of separating cellular particles from a tissue sample and then sorting the cellular particles into two or more cellular particle populations.
    Type: Application
    Filed: August 11, 2023
    Publication date: March 7, 2024
    Inventors: Nelson Alexander, Aoune Barhoumi, Lisa Gallegos, Stacey Stanislaw
  • Patent number: 11906523
    Abstract: Disclosed herein are embodiments of a signaling conjugate, embodiments of a method of using the signaling conjugates, and embodiments of a kit comprising the signaling conjugate. The disclosed signaling conjugate comprises a latent reactive moiety and a chromogenic moiety that may further comprise a linker suitable for coupling the latent reactive moiety to the chromogenic moiety. The signaling conjugate may be used to detect one or more targets in a biological sample and are capable of being covalently deposited directly on or proximally to the target. Particular disclosed embodiments of the method of using the signaling conjugate comprise multiplexing methods.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: February 20, 2024
    Assignee: VENTANA MEDICAL SYSTEMS, INC.
    Inventors: Nelson Alexander, William Day, Jerome W. Kosmeder, II, Mark Lefever, Larry Morrison, Anne M. Pedata, Stacey Stanislaw
  • Patent number: 11768137
    Abstract: The present disclosure provides a method of separating cellular particles from a tissue sample and then sorting the cellular particles into two or more cellular particle populations.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: September 26, 2023
    Assignee: VENTANA MEDICAL SYSTEMS, INC.
    Inventors: Nelson Alexander, Aoune Barhoumi, Lisa Gallegos, Stacey Stanislaw
  • Publication number: 20220178934
    Abstract: Disclosed herein are embodiments of a signaling conjugate, embodiments of a method of using the signaling conjugates, and embodiments of a kit comprising the signaling conjugate. The disclosed signaling conjugate comprises a latent reactive moiety and a chromogenic moiety that may further comprise a linker suitable for coupling the latent reactive moiety to the chromogenic moiety. The signaling conjugate may be used to detect one or more targets in a biological sample and are capable of being covalently deposited directly on or proximally to the target. Particular disclosed embodiments of the method of using the signaling conjugate comprise multiplexing methods.
    Type: Application
    Filed: February 23, 2022
    Publication date: June 9, 2022
    Inventors: Nelson Alexander, William Day, Jerome W. Kosmeder, II, Mark Lefever, Larry Morrison, Anne M. Pedata, Stacey Stanislaw
  • Publication number: 20200333349
    Abstract: Disclosed herein are embodiments of a signaling conjugate, embodiments of a method of using the signaling conjugates, and embodiments of a kit comprising the signaling conjugate. The disclosed signaling conjugate comprises a latent reactive moiety and a chromogenic moiety that may further comprise a linker suitable for coupling the latent reactive moiety to the chromogenic moiety. The signaling conjugate may be used to detect one or more targets in a biological sample and are capable of being covalently deposited directly on or proximally to the target. Particular disclosed embodiments of the method of using the signaling conjugate comprise multiplexing methods.
    Type: Application
    Filed: April 23, 2020
    Publication date: October 22, 2020
    Inventors: Nelson Alexander, William Day, Jerome W. Kosmeder, Mark Lefever, Larry Morrison, Anne M. Pedata, Stacey Stanislaw
  • Publication number: 20200326345
    Abstract: Disclosed herein are embodiments of a signaling conjugate, embodiments of a method of using the signaling conjugates, and embodiments of a kit comprising the signaling conjugate. The disclosed signaling conjugate comprises a latent reactive moiety and a chromogenic moiety that may further comprise a linker suitable for coupling the latent reactive moiety to the chromogenic moiety. The signaling conjugate may be used to detect one or more targets in a biological sample and are capable of being covalently deposited directly on or proximally to the target. Particular disclosed embodiments of the method of using the signaling conjugate comprise multiplexing methods.
    Type: Application
    Filed: February 10, 2020
    Publication date: October 15, 2020
    Inventors: Nelson Alexander, William Day, Jerome W. Kosmeder, II, Mark Lefever, Larry Morrison, Anne M. Pedata, Stacey Stanislaw
  • Publication number: 20200319193
    Abstract: Disclosed herein are embodiments of a signaling conjugate, embodiments of a method of using the signaling conjugates, and embodiments of a kit comprising the signaling conjugate. The disclosed signaling conjugate comprises a latent reactive moiety and a chromogenic moiety that may further comprise a linker suitable for coupling the latent reactive moiety to the chromogenic moiety. The signaling conjugate may be used to detect one or more targets in a biological sample and are capable of being covalently deposited directly on or proximally to the target. Particular disclosed embodiments of the method of using the signaling conjugate comprise multiplexing methods.
    Type: Application
    Filed: April 23, 2020
    Publication date: October 8, 2020
    Inventors: Nelson Alexander, William Day, Jerome W. Kosmeder, Mark Lefever, Larry Morrison, Anne M. Pedata, Stacey Stanislaw
  • Publication number: 20200249238
    Abstract: Disclosed herein are embodiments of a signaling conjugate, embodiments of a method of using the signaling conjugates, and embodiments of a kit comprising the signaling conjugate. The disclosed signaling conjugate comprises a latent reactive moiety and a chromogenic moiety that may further comprise a linker suitable for coupling the latent reactive moiety to the chromogenic moiety. The signaling conjugate may be used to detect one or more targets in a biological sample and are capable of being covalently deposited directly on or proximally to the target. Particular disclosed embodiments of the method of using the signaling conjugate comprise multiplexing methods.
    Type: Application
    Filed: April 23, 2020
    Publication date: August 6, 2020
    Inventors: Nelson Alexander, William Day, Jerome W. Kosmeder, Mark Lefever, Larry Morrison, Anne M. Pedata, Stacey Stanislaw
  • Publication number: 20200049599
    Abstract: The disclosure generally relates to the preparation of representative samples from clinical samples, e.g., tumors (whole or in part), lymph nodes, metastases, cysts, polyps, or a combination or portion thereof, using mechanical and/or biochemical dissociation methods to homogenize intact samples or large portions thereof. The resulting homogenate provides the ability to obtain a correct representative sample despite spatial heterogeneity within the sample, increasing detection likelihood of low prevalence subclones, and is suitable for use in various diagnostic assays as well as the production of therapeutics, especially “personalized” anti-tumor vaccines or immune cell based therapies.
    Type: Application
    Filed: April 27, 2018
    Publication date: February 13, 2020
    Inventors: Nelson Alexander, Aoune Barhoumi, Melinda Day, Lisa Gallegos, Katherine Leith, Samantha Rajkovich, Esteban Roberts, Stacey Stanislaw, Eric Walk
  • Patent number: 10557851
    Abstract: Disclosed herein are embodiments of a signaling conjugate, embodiments of a method of using the signaling conjugates, and embodiments of a kit comprising the signaling conjugate. The disclosed signaling conjugate comprises a latent reactive moiety and a chromogenic moiety that may further comprise a linker suitable for coupling the latent reactive moiety to the chromogenic moiety. The signaling conjugate may be used to detect one or more targets in a biological sample and are capable of being covalently deposited directly on or proximally to the target. Particular disclosed embodiments of the method of using the signaling conjugate comprise multiplexing methods.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: February 11, 2020
    Assignee: Ventana Medical Systems, Inc.
    Inventors: Nelson Alexander, William Day, Jerome W. Kosmeder, II, Mark Lefever, Larry Morrison, Anne M. Pedata, Stacey Stanislaw
  • Publication number: 20200011775
    Abstract: The present disclosure provides a method of separating cellular particles from a tissue sample and then sorting the cellular particles into two or more cellular particle populations.
    Type: Application
    Filed: September 16, 2019
    Publication date: January 9, 2020
    Inventors: Nelson Alexander, Aoune Barhoumi, Lisa Gallegos, Stacey Stanislaw
  • Publication number: 20190018018
    Abstract: Disclosed herein are embodiments of a signaling conjugate, embodiments of a method of using the signaling conjugates, and embodiments of a kit comprising the signaling conjugate. The disclosed signaling conjugate comprises a latent reactive moiety and a chromogenic moiety that may further comprise a linker suitable for coupling the latent reactive moiety to the chromogenic moiety. The signaling conjugate may be used to detect one or more targets in a biological sample and are capable of being covalently deposited directly on or proximally to the target. Particular disclosed embodiments of the method of using the signaling conjugate comprise multiplexing methods.
    Type: Application
    Filed: July 18, 2018
    Publication date: January 17, 2019
    Inventors: Nelson ALEXANDER, William Day, Jerome W. Kosmeder, II, Mark Lefever, Larry Morrison, Anne M. Pedata, Stacey Stanislaw
  • Publication number: 20180328932
    Abstract: Disclosed herein are embodiments of a signaling conjugate, embodiments of a method of using the signaling conjugates, and embodiments of a kit comprising the signaling conjugate. The disclosed signaling conjugate comprises a latent reactive moiety and a chromogenic moiety that may further comprise a linker suitable for coupling the latent reactive moiety to the chromogenic moiety. The signaling conjugate may be used to detect one or more targets in a biological sample and are capable of being covalently deposited directly on or proximally to the target. Particular disclosed embodiments of the method of using the signaling conjugate comprise multiplexing methods.
    Type: Application
    Filed: July 18, 2018
    Publication date: November 15, 2018
    Inventors: Nelson Alexander, William Day, Jerome W. Kosmeder, II, Mark Lefever, Larry Morrison, Anne M. Pedata, Stacey Stanislaw
  • Patent number: 10041950
    Abstract: Disclosed herein are embodiments of a signaling conjugate, embodiments of a method of using the signaling conjugates, and embodiments of a kit comprising the signaling conjugate. The disclosed signaling conjugate comprises a latent reactive moiety and a chromogenic moiety that may further comprise a linker suitable for coupling the latent reactive moiety to the chromogenic moiety. The signaling conjugate may be used to detect one or more targets in a biological sample and are capable of being covalently deposited directly on or proximally to the target. Particular disclosed embodiments of the method of using the signaling conjugate comprise multiplexing methods.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: August 7, 2018
    Assignee: VENTANA MEDICAL SYSTEMS, INC.
    Inventors: Nelson Alexander, William Day, Jerome W. Kosmeder, II, Mark Lefever, Larry Morrison, Anne M. Pedata, Stacey Stanislaw
  • Publication number: 20160362730
    Abstract: The present disclosure concerns novel methods for analyzing biological samples using photo-cleavable moieties that facilitate target detection and/or biomarker isolation. In some embodiments, the method concerns using a probe comprising a photo-cleavable moiety and a selective irradiation technique for activating/cleaving the photo-cleavable moiety thereby providing facile isolation of the probe or probe components. Also disclosed herein is a system and kit for implementing the methods disclosed herein.
    Type: Application
    Filed: August 26, 2016
    Publication date: December 15, 2016
    Inventors: Nelson Alexander, Larry Morrison, Sedide Ozturk
  • Publication number: 20130260379
    Abstract: Disclosed herein are embodiments of a signaling conjugate, embodiments of a method of using the signaling conjugates, and embodiments of a kit comprising the signaling conjugate. The disclosed signaling conjugate comprises a latent reactive moiety and a chromogenic moiety that may further comprise a linker suitable for coupling the latent reactive moiety to the chromogenic moiety. The signaling conjugate may be used to detect one or more targets in a biological sample and are capable of being covalently deposited directly on or proximally to the target. Particular disclosed embodiments of the method of using the signaling conjugate comprise multiplexing methods.
    Type: Application
    Filed: March 22, 2013
    Publication date: October 3, 2013
    Applicant: Ventana Medical Systems, Inc.
    Inventors: Nelson Alexander, William Day, Jerome W. Kosmeder, II, Mark Lefever, Larry Morrison, Anne M. Pedata, Stacey Stanislaw
  • Publication number: 20120070862
    Abstract: Disclosed herein are uniquely distinct nucleic acid tags and methods for their use and production. The disclosed tags do not hybridize to a genome of interest and thus can be used as labels without generating background signal associated with unintended hybridization. In one example, tag sequences are derived from a genome divergent to the genome of interest. The divergent genome provides a vast library of potential tag sequences. These potential tag sequences can be screened using a bioinformatics-based approach against the genome of interest. These potentially distinct sequences can then be synthesized and tested empirically against the genome of interest to identify those sequences that are uniquely distinct. The tags can then be produced, for example by oligonucleotide synthesis techniques.
    Type: Application
    Filed: November 4, 2011
    Publication date: March 22, 2012
    Inventors: Nelson Alexander, Stacey Stanislaw