Patents by Inventor David B. Krizman

David B. Krizman 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: 20130252840
    Abstract: The current invention provides a method for directly converting histopathologically processed biological samples, tissues, and cells into a multi-use biomolecule lysate. This method allows for simultaneous extraction, isolation, solublization, and storage of all biomolecules contained within the histopathologically processed biological sample, thereby forming a representative library of said sample. This multi-use biomolecule lysate is dilutable, soluble, capable of being fractionated, and used in any number of subsequent experiments.
    Type: Application
    Filed: May 17, 2013
    Publication date: September 26, 2013
    Applicant: Expression Pathology, Inc.
    Inventors: Marlene M. Darfler, David B. Krizman
  • Patent number: 8455215
    Abstract: The current invention provides a method for directly converting histopathologically processed biological samples, tissues, and cells into a multi-use biomolecule lysate. This method allows for simultaneous extraction, isolation, solubilization, and storage of all biomolecules contained within the histopathologically processed biological sample, thereby forming a representative library of said sample. This multi-use biomolecule lysate is dilutable, soluble, capable of being fractionated, and used in any number of subsequent experiments.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: June 4, 2013
    Assignee: Expression Pathology, Inc.
    Inventors: Marlene M. Darfler, David B. Krizman
  • Publication number: 20130072581
    Abstract: The current disclosure provides for specific peptides from the Secreted Protein Acidic and Rich in Cysteine (SPARC) protein and the derived ionization characteristics of those peptides that are advantageous for quantifying SPARC directly in formalin fixed biological samples by the method of Selected Reaction Monitoring (SRM) mass spectrometry. Such fixed biological samples include: formalin-fixed tissue/cells, formalin-fixed/paraffin embedded (FFPE) tissue/cells, FFPE tissue blocks and cells from those blocks, and formalin fixed and paraffin embedded tissue culture cells. SPARC protein is quantitated in biological samples by the method of SRM/MRM mass spectrometry by quantitating one or more of the peptides described herein. The peptides can be quantitated if they reside in a modified or an unmodified form. Examples of potentially modified forms of SPARC peptides include those bearing phosphorylation of a tyrosine, threonine, serine, and/or other amino acid residues within the peptide sequence.
    Type: Application
    Filed: June 21, 2012
    Publication date: March 21, 2013
    Inventors: David B. KRIZMAN, Todd Hembrough, Sheeno Thyparambil
  • Publication number: 20130011408
    Abstract: The current disclosure provides for specific peptides from the Epidermal Growth Factor Receptor (EGFR) protein and the derived ionization characteristics of those peptides that are advantageous for quantifying the EGFR directly in formalin fixed biological samples by the method of Selected Reaction Monitoring (SRM) mass spectrometry. Such fixed biological samples include: formalin-fixed tissue/cells, formalin-fixed/paraffin embedded (FFPE) tissue/cells, FFPE tissue blocks and cells from those blocks, and formalin fixed and paraffin embedded tissue culture cells. EGFR protein is quantitated in biological samples by the method of SRM/MRM mass spectrometry by quantitating one or more of the peptides described herein. The peptides can be quantitated if they reside in a modified or an unmodified form. Examples of potentially modified forms of an EGFR peptides include those bearing phosphorylation of a tyrosine, threonine, serine, and/or other amino acid residues within the peptide sequence.
    Type: Application
    Filed: June 21, 2012
    Publication date: January 10, 2013
    Applicant: EXPRESSION PATHOLOGY, INC.
    Inventors: David B. Krizman, Todd Hembrough, Sheeno Thyparambil
  • Publication number: 20120302650
    Abstract: The current disclosure provides for specific peptides from the Insulin-Like Growth Factor 1 Receptor (IGF-1R) protein and the derived ionization characteristics of those peptides that are advantageous for quantifying the IGF-1R directly in formalin fixed biological samples by the method of Selected Reaction Monitoring (SRM) mass spectrometry. Such fixed biological samples include: formalin-fixed tissue/cells, formalin-fixed/paraffin embedded (FFPE) tissue/cells, FFPE tissue blocks and cells from those blocks, and formalin fixed and paraffin embedded tissue culture cells. IGF-1R protein is quantitated in biological samples by the method of SRM/MRM mass spectrometry by quantitating one or more of the peptides described herein. The peptides can be quantitated if they reside in a modified or an unmodified form. Examples of potentially modified forms of an IGF-1R peptides include those bearing phosphorylation of a tyrosine, threonine, serine, and/or other amino acid residues within the peptide sequence.
    Type: Application
    Filed: June 21, 2012
    Publication date: November 29, 2012
    Applicant: EXPRESSION PATHOLOGY, INC.
    Inventors: David B. Krizman, Todd Hembrough, Sheeno Thyparambil
  • Publication number: 20120295990
    Abstract: The current disclosure provides for specific peptides from the Insulin Receptor Substrate 1 (IRS1) protein and the derived ionization characteristics of those peptides that are advantageous for quantifying IRS1 directly in formalin fixed biological samples by the method of Selected Reaction Monitoring (SRM) mass spectrometry. Such fixed biological samples include: formalin-fixed tissue/cells, formalin-fixed/paraffin embedded (FFPE) tissue/cells, FFPE tissue blocks and cells from those blocks, and formalin fixed and paraffin embedded tissue culture cells. IRS1 protein is quantitated in biological samples by the method of SRM/MRM mass spectrometry by quantitating one or more of the peptides described herein. The peptides can be quantitated if they reside in a modified or an unmodified form. Examples of potentially modified forms of IRS1 peptides include those bearing phosphorylation of a tyrosine, threonine, serine, and/or other amino acid residues within the peptide sequence.
    Type: Application
    Filed: June 21, 2012
    Publication date: November 22, 2012
    Applicant: EXPRESSION PATHOLOGY, INC
    Inventors: David B. KRIZMAN, Todd Hembrough, Sheeno Thyparambil
  • Patent number: 8293485
    Abstract: The invention provides methods for multiplex analysis of biological samples of formalin-fixed tissue samples. The invention provides for a method to achieve a multiplexed, multi-staged plurality of Liquid Tissue preparations simultaneously from a single histopathologically processed biological sample, where the protocol for each Liquid Tissue preparation imparts a distinctive set of biochemical effects on biomolecules procured from histopathologically processed biological samples and which when each of the preparations is analyzed can render additive and complementary data about the same histopathologically processed biological sample.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: October 23, 2012
    Assignee: Expression Pathology, Inc.
    Inventors: David B. Krizman, Marlene M. Darfler
  • Publication number: 20110229917
    Abstract: The invention provides methods for multiplex analysis of biological samples of formalin-fixed tissue samples. The invention provides for a method to achieve a multiplexed, multi-staged plurality of Liquid Tissue preparations simultaneously from a single histopathologically processed biological sample, where the protocol for each Liquid Tissue preparation imparts a distinctive set of biochemical effects on biomolecules procured from histopathologically processed biological samples and which when each of the preparations is analyzed can render additive and complementary data about the same histopathologically processed biological sample.
    Type: Application
    Filed: March 15, 2011
    Publication date: September 22, 2011
    Inventors: David B. KRIZMAN, Marlene M. DARFLER
  • Publication number: 20110105337
    Abstract: The current invention provides a method for discovering protein biomarkers of disease for use in diagnostic assays of bodily fluids by determining differential expression patterns of proteins secreted or released directly by normal and diseased epithelial cells into glandular lumens. Determining those secreted or released proteins directly from the glandular lumen of diseased and normal solid tissue would lead to a catalogue of proteins that have a high degree of probability to be present in various bodily fluids in persons with specific diseases. This would prove useful as a means to diagnose specific conditions and diseases by simply assaying easily acquired bodily fluids. Past efforts to discover such diagnostic/screening markers in bodily fluids have proven difficult at best due to overriding complexity of the proteins within bodily fluids.
    Type: Application
    Filed: June 23, 2008
    Publication date: May 5, 2011
    Inventor: David B. Krizman
  • Patent number: 7906301
    Abstract: The invention provides methods for multiplex analysis of biological samples of formalin-fixed tissue samples. The invention provides for a method to achieve a multiplexed, multi-staged plurality of Liquid Tissue preparations simultaneously from a single histopathologically processed biological sample, where the protocol for each Liquid Tissue preparation imparts a distinctive set of biochemical effects on biomolecules procured from histopathologically processed biological samples and which when each of the preparations is analyzed can render additive and complementary data about the same histopathologically processed biological sample.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: March 15, 2011
    Assignee: Expression Pathology, Inc.
    Inventors: David B. Krizman, Marlene M. Darfler
  • Publication number: 20110028344
    Abstract: This patent application discloses and describes a list of proteins that are found to be differentially expressed between normal endometrial epithelial cells and early stage cancerous endometrial epithelial cells. These proteins can be used either individually or in specific combinations in diagnostic and prognostic protein assays on various biological samples from endometrial cancer patients, or individuals suspected on having endometrial cancer. In addition, these proteins are also differentially expressed between normal endometrial epithelial cells and epithelial cells of other types of endometrial disease, and thus such diseases can be diagnosed using assays based on these proteins. The full length intact proteins can be assayed or peptides derived from these proteins can be assayed as reporters for these proteins.
    Type: Application
    Filed: April 13, 2009
    Publication date: February 3, 2011
    Applicant: Expression Pathology, Inc.
    Inventors: David B. Krizman, Thomas G. Guiel
  • Publication number: 20090263842
    Abstract: The current invention provides a method for determining the metastatic potential, capability, status, or characteristics of a primary tumor from a human cancer patient by determining expression patterns of proteins that initiate, cause, promote, mediate, inflict, or otherwise aid metastatic properties of cells from a primary tumor. The identification of one or more proteins associated with metastasis in a single primary tumor can determine whether a primary tumor is metastatic or has the potential to become metastatic.
    Type: Application
    Filed: March 26, 2007
    Publication date: October 22, 2009
    Applicant: EXPRESSION PATHOLOGY
    Inventor: David B. Krizman
  • Publication number: 20090215636
    Abstract: The invention provides methods for diagnosing diseases such as cancer and other conditions using biological samples. Liquid Tissue samples prepared from histopathologically prepared tissue obtained from a subject surprisingly can be used to identify and, optionally, to quantify analytes that are diagnostic of the presence of a disease, condition or syndrome in the subject.
    Type: Application
    Filed: May 25, 2006
    Publication date: August 27, 2009
    Inventors: David B. Krizman, Thomas G. Guiel, Marlene M. Darfler, Casimir P. Eitner
  • Publication number: 20090197776
    Abstract: The current invention provides a method for directly converting histopathologically processed biological samples, tissues, and cells into a multi-use biomolecule lysate. This method allows for simultaneous extraction, isolation, solublization, and storage of all biomolecules contained within the histopathologically processed biological sample, thereby forming a representative library of said sample. This multi-use biomolecule lysate is dilutable, soluble, capable of being fractionated, and used in any number of subsequent experiments.
    Type: Application
    Filed: January 5, 2009
    Publication date: August 6, 2009
    Applicant: EXPRESSION PATHOLOGY
    Inventors: Marlene M. DARFLER, David B. Krizman
  • Publication number: 20090136971
    Abstract: The invention provides methods for multiplex analysis of biological samples of formalin-fixed tissue samples. The invention provides for a method to achieve a multiplexed, multi-staged plurality of Liquid Tissue preparations simultaneously from a single histopathologically processed biological sample, where the protocol for each Liquid Tissue preparation imparts a distinctive set of biochemical effects on biomolecules procured from histopathologically processed biological samples and which when each of the preparations is analyzed can render additive and complementary data about the same histopathologically processed biological sample.
    Type: Application
    Filed: May 25, 2006
    Publication date: May 28, 2009
    Inventors: David B. Krizman, Thomas G. Guiel, Marlene M. Darfler
  • Patent number: 7473532
    Abstract: The current invention provides a method for directly converting histopathologically processed biological samples, tissues, and cells into a multi-use biomolecule lysate. This method allows for simultaneous extraction, isolation, solublization, and storage of all biomolecules contained within the histopathologically processed biological sample, thereby forming a representative library of said sample. This multi-use biomolecule lysate is dilutable, soluble, capable of being fractionated, and used in any number of subsequent experiments.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: January 6, 2009
    Assignee: Expression Pathology, Inc.
    Inventors: Marlene M. Darfler, David B. Krizman
  • Patent number: 7381440
    Abstract: A method of laser forward transfer is disclosed. Photo energy is directed through a photon-transparent support and absorbed by an interlayer coated thereon. The energized interlayer causes the transfer of specific regions of a heterogeneous tissue sample coated thereon across a gap and onto a receiving substrate or into a receiving vessel.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: June 3, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Bradley R. Ringeisen, Jason Barron, Peter Wu, David B. Krizman, Marlene M. Darfler
  • Patent number: 6867038
    Abstract: A method of microdissection which involves forming an image field of cells of the tissue sample utilizing a microscope, identifying at least one zone of cells of interest from the image field of cells which at least one zone of cells of interest includes different types of cells than adjacent zones of cells, and extracting the at least one zone of cells of interest from the tissue sample. The extraction is achieved by contacting the tissue sample with a transfer surface that can be selectively activated so that regions thereof adhere to the zone of cells of interest to be extracted. The transfer surface includes a selectively activatable adhesive layer which provides, for example, chemical or electrostatic adherence to the selected regions of the tissue sample. After the transfer surface is activated, the transfer surface and tissue sample are separated.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: March 15, 2005
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Lance A. Liotta, Michael Emmert-Buck, David B. Krizman, Rodrigo Chuaqui, W. Marston Linehan, Jeffry M. Trent, Robert F. Bonner, Seth R. Goldstein, Paul D. Smith, John I. Peterson
  • Publication number: 20040247777
    Abstract: A method of laser forward transfer is disclosed. Photo energy is directed through a photon-transparent support and absorbed by an interlayer coated thereon. The energized interlayer causes the transfer of specific regions of a heterogeneous tissue sample coated thereon across a gap and onto a receiving substrate or into a receiving vessel.
    Type: Application
    Filed: June 4, 2004
    Publication date: December 9, 2004
    Inventors: Bradley R. Ringeisen, Jason Barron, Peter Wu, David B. Krizman, Marlene M. Darfler
  • Publication number: 20020037269
    Abstract: A method of microdissection which involves forming an image field of cells of the tissue sample utilizing a microscope, identifying at least one zone of cells of interest from the image field of cells which at least one zone of cells of interest includes different types of cells than adjacent zones of cells, and extracting the at least one zone of cells of interest from the tissue sample. The extraction is achieved by contacting the tissue sample with a transfer surface that can be selectively activated so that regions thereof adhere to the zone of cells of interest to be extracted. The transfer surface includes a selectively activatable adhesive layer which provides, for example, chemical or electrostatic adherence to the selected regions of the tissue sample. After the transfer surface is activated, the transfer surface and tissue sample are separated.
    Type: Application
    Filed: February 9, 2001
    Publication date: March 28, 2002
    Inventors: Lance A. Liotta, Michael Emmert-Buck, David B. Krizman, Rodrigo Chuaqui, W. Marston Linehan, Jeffry M. Trent, Robert F. Bonner, Seth R. Goldstein, Paul D. Smith, John I. Peterson