Patents by Inventor Kailash C. Chadha

Kailash C. Chadha 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: 10034913
    Abstract: Provided are peptide sequences derived from prostate serum antigen (PSA). The peptides are provided in cyclic and linear form. Methods for using the peptides for inhibition of angiogenesis, such as angiogenesis in a tumor, are provided.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: July 31, 2018
    Assignee: Health Research, Inc.
    Inventors: Kailash C. Chadha, Gary J. Smith
  • Publication number: 20160051623
    Abstract: Provided are peptide sequences derived from prostate serum antigen (PSA). The peptides are provided in cyclic and linear form. Methods for using the peptides for inhibition of angiogenesis, such as angiogenesis in a tumor, are provided.
    Type: Application
    Filed: August 4, 2015
    Publication date: February 25, 2016
    Inventors: Kailash C. Chadha, Gary J. Smith
  • Publication number: 20140309170
    Abstract: Provided are peptide sequences derived from prostate serum antigen (PSA). The peptides are provided in cyclic and linear form. Methods for using the peptides for inhibition of angiogenesis, such as angiogenesis in a tumor, are provided.
    Type: Application
    Filed: July 23, 2012
    Publication date: October 16, 2014
    Applicant: HEALTH RESEARCH, INC.
    Inventors: Kailash C. Chadha, Gary J. Smith
  • Patent number: 6692643
    Abstract: A method for capturing PSA and its molecular forms that may be in a fluid biological material including the steps of: preparing a bed of magnetic beads by binding thiophilic ligands to the beds where the thiophilic ligands bind PSA and its complexes, said thiophilic ligands comprising a two part structure wherein one part can be characterized as a hy6drophilic electron acceptor and the other part is sulfur which acts as an electron donor; selecting a sample of a fluid biological material to be tested for PSA and its complexes; introducing the sample into the magnetic beads bound to thiophilic ligands so that PSA and its complexes bind to the thiophilic ligand; and magnetically removing the beads from unbound portions of the sample.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: February 17, 2004
    Assignee: Health Research, Inc.
    Inventors: Eugene Sulkowski, Kailash C. Chadha, Elzbieta Kawinski
  • Publication number: 20020166814
    Abstract: A method for capturing PSA and its molecular forms that may be in a fluid biological material including the steps of: preparing a bed of magnetic beads by binding thiophilic ligands to the beds where the thiophilic ligands bind PSA and its complexes, said thiophilic ligands comprising a two part structure wherein one part can be characterized as a hyz6drophilic electron acceptor and the other part is sulfur which acts as an electron donor; selecting a sample of a fluid biological material to be tested for PSA and its complexes; introducing the sample into the magnetic beads bound to thiophilic ligands so that PSA and its complexes bind to the thiophilic ligand; and magnetically removing the beads from unbound portions of the sample.
    Type: Application
    Filed: April 29, 2002
    Publication date: November 14, 2002
    Inventors: Eugene Sulkowski, Kailash C. Chadha, Elzbieta Kawinski
  • Patent number: 6475389
    Abstract: A method for detecting prostate specific membrane antigen (PSMA) in serum by immunoassay including the steps of capturing PSMA from serum using a PSMA antibody and detecting the captured PSMA with an anti-&agr;1-antichymotrypsin antibody. In a preferred embodiment, PSMA is captured using a PSMA antibody by diluting the PSMA antibody, coating a surface such as the surface of wells in a microtiter plate, with the resulting solution, blocking non-specific sites on the surface with albumin, diluting the serum with a blocking buffer and applying a diluted sample to the surface to capture PSMA. A preferred embodiment for detecting captured PSMA, includes the steps of removing non-captured material by washing the surface, applying anti-&agr;1antichymotrypsin antibody diluted in a blocking solution such as albumin solution and detecting bound PSMA using peroxidase labeled anti-rabbit IgG and OPD substrate.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: November 5, 2002
    Assignee: Health Research, Inc.
    Inventors: Elzbieta Kawinski, Kailash C. Chadha
  • Patent number: 6379550
    Abstract: A method for capturing PSA and its molecular forms that may be in a fluid biological material including the steps of: preparing a chromatographic column by placing a thiophilic gel in a column where the thiophilic gel is formed from a water insoluble polymer where the surface of the gel is provided with thiophilic moieties that bind PSA in the presence of an adsorption liquid but that will release PSA upon elution with an eluting liquid, said thiophilic moieties comprising a two part structure wherein one part can be characterized as a hydrophilic electron acceptor and the other part is sulfur which acts as an electron donor; selecting a sample of a fluid biological material to be tested for PSA and its complexes; introducing the sample into the column; eluting the sample through the column; rinsing the column with adsorption liquid to remove materials that are unbound to the thiophilic gel; and capturing PSA and its complexes in eluted column fractions.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: April 30, 2002
    Assignee: Health Research, Inc.
    Inventors: Kailash C. Chadha, Eugene Sulkowski, Elzbieta Kawinski
  • Publication number: 20020049712
    Abstract: A method for detecting prostate specific membrane antigen (PSMA) in serum by immunoassay including the steps of capturing PSMA from serum using a PSMA antibody and detecting the captured PSMA with an anti-&agr;1-antichymotrypsin antibody. In a preferred embodiment, PSMA is captured using a PSMA antibody by diluting the PSMA antibody, coating a surface such as the surface of wells in a microtiter plate, with the resulting solution, blocking non-specific sites on the surface with albumin, diluting the serum with a blocking buffer and applying a diluted sample to the surface to capture PSMA. A preferred embodiment for detecting captured PSMA, includes the steps of removing non-captured material by washing the surface, applying anti-&agr;1antichymotrypsin antibody diluted in a blocking solution such as albumin solution and detecting bound PSMA using peroxidase labeled anti-rabbit IgG and OPD substrate.
    Type: Application
    Filed: May 8, 2001
    Publication date: April 25, 2002
    Inventors: Elzbieta Kawinski, Kailash C. Chadha
  • Patent number: 4485038
    Abstract: A process for the production and purification of human interferon derived from leukocyte of lymphoblastoid cell origin characterized by a sequence of steps involving chromatography of a solution of crude interferon on porous glass, utilizing three new classes of eluants for recovering the interferon bound to the porous glass, followed by cation exchange chromatography and finally chromatography on a hydrophobic sorbent material which process produces a final purified interferon in its natural form containing those protein components which are normally labile to low pH treatment along with those components which are pH stable. In one aspect, the improved method of purification also includes the optional molecular filtration of the crude interferon prior to initiating the purification process. In yet another embodiment, a new process for producingThe invention described herein was made, in part, in the course of work under grant No. NOI-HB-2920 awarded by the National Heart, Lung And Blood Institute.
    Type: Grant
    Filed: October 19, 1982
    Date of Patent: November 27, 1984
    Assignee: Health Research (Roswell Park Division)
    Inventors: Kailash C. Chadha, Eugene Sulkowski