Patents by Inventor Murthy V. S. N. Yerramilli

Murthy V. S. N. Yerramilli 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: 11913942
    Abstract: Homogeneous immunoassays that allow for compensation of background signals inherent in samples and reagents. The use of homogeneous immunoassays for the detection of the presence or amount of symmetrical Dimethyl Arginine (SDMA) in biological samples. Reagents and kits for conducting the assays.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: February 27, 2024
    Assignee: IDEXX Laboratories, Inc.
    Inventors: Murthy V S N Yerramilli, Hongzhi Xie, Daniel Wayne Patch, Giosi Farace
  • Publication number: 20230139188
    Abstract: This invention provides reagents and methods for diagnosing renal disease. Differential levels of inosine metabolite, and proteins: apolipoprotein C-I, apolipoprotein C-II, fibrinogen alpha chain, or fibrinogen A-alpha chain, kininogen, Inter-Alpha Inhibitor H4 (ITIH4), keratin Type I cytoskeletol 10 cystatin A, cystatin B and other polypeptides and fragments thereof provide biomarkers of renal disease and are described herein.
    Type: Application
    Filed: July 28, 2022
    Publication date: May 4, 2023
    Applicant: IDEXX LABORATORIES, INC.
    Inventors: Mahalakshimi YERRAMILLI, Michael Randolph ATKINSON, Murthy V.S.N. YERRAMILLI
  • Patent number: 11435365
    Abstract: This invention provides reagents and methods for diagnosing renal disease. Differential levels of inosine metabolite, and proteins: apolipoprotein C-I, apolipoprotein C-II, fibrinogen alpha chain, or fibrinogen A-alpha chain, kininogen, Inter-Alpha Inhibitor H4 (ITIH4), keratin Type I cytoskeletol 10 cystatin A, cystatin B and other polypeptides and fragments thereof provide biomarkers of renal disease and are described herein.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: September 6, 2022
    Assignee: IDEXX Laboratories, Inc.
    Inventors: Mahalakshmi Yerramilli, Michael Randolph Atkinson, Murthy V. S. N. Yerramilli
  • Publication number: 20220276263
    Abstract: The present invention relates to methods for detecting and/or measuring alanine transaminase (ALT) activity, aspartate transaminase (AST) activity, alkaline phosphatase (ALP) activity, glucose levels, creatinine levels, urea levels, asymmetric dimethylarginine (ADMA) levels, and/or symmetrical dimethylarginine (SDMA) levels in a sample. The method allows all of the activities and analytes, or any combination of activities and analytes, to be measured in a single assay.
    Type: Application
    Filed: February 17, 2022
    Publication date: September 1, 2022
    Inventors: E.A. Prabodha Ekanayaka, Jordan Haddock, Murthy V.S.N. Yerramilli
  • Patent number: 11422136
    Abstract: The disclosure generally relates to the detection of symmetrical dimethylarginine (SDMA). More particularly, the disclosure relates to the detection of SDMA using a solid phase. The disclosure provides devices, reagents, kits and methods for detecting symmetrical dimethyl arginine (SDMA) in sample, such as a biological sample from an animal. The method includes detecting the presence or amount of SDMA in the sample by using an immunoassay format, such as a competitive immunoassay. The assay includes the use of antibodies to SDMA that are specific for SDMA and that have less affinity for other arginine derivatives.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: August 23, 2022
    Assignee: IDEXX Laboratories, Inc.
    Inventors: Hongzhi Xie, Sreenivasa Rao Ramisetty, Murthy V S N Yerramilli
  • Publication number: 20220221446
    Abstract: Method of detecting Symmetrical dimethyl arginine (SDMA) in biological samples. SDMA analogs for generating anti-SDMA antibodies having little or no cross-reactivity with asymmetrical dimethyl arginine, arginine, and monomethylarginine. The analogs have a protected or free thiol (—SH) group or hydroxyl (—OH) group that allow them to be linked to a suitable conjugation target which can be, for example, a protein containing molecule of a label. The anti-SDMA antibodies can be used in diagnostic immunoassay for the diagnosis of SDMA associated disorders and/or diseases.
    Type: Application
    Filed: March 28, 2022
    Publication date: July 14, 2022
    Inventors: Murthy V.S.N. Yerramilli, Mahalakshmi Yerramilli, Michael Atkinson, Kwok Kam Yeung
  • Publication number: 20220082501
    Abstract: The present invention relates to a method and reagents for determining the presence of or the amount of an analyte in a sample.
    Type: Application
    Filed: April 16, 2021
    Publication date: March 17, 2022
    Inventors: Jennifer E. Gagner, Kiamars Hajizadeh, Evan M. Peck, James R. Salter, Paul J. Travers, Christopher P. Turmel, Yingzi Wu, Hongzhi Xie, Murthy V.S.N. Yerramilli
  • Publication number: 20210275979
    Abstract: A method using a chemical analyzer for removing a component of a liquid sample which may interfere with a test performed on a test assay includes the steps of adding the liquid sample to a sample cup, transferring a volume of the liquid sample to a mixing cup containing an IMAC (Immobilized Metal Affinity Chromatography) resin containing porous beads to form a sample/resin solution in the mixing cup, using a pipette of the chemical analyzer to repeatedly aspirate the sample/resin solution into a disposable pipette tip of the pipette and expelling the sample/resin solution from the pipette tip into the mixing cup to achieve a mixed sample/resin solution in the mixing cup, and allowing the mixed sample/resin solution in the mixing cup to rest undisturbed so that the interfering component of the liquid sample adheres to the porous beads and the beads settle to a bottom portion of the mixing cup, resulting in a refined liquid sample devoid of the interfering component and occupying an upper portion of the mixing
    Type: Application
    Filed: March 8, 2021
    Publication date: September 9, 2021
    Inventors: Pamela Ann Cacavas, Lucius S. Fox, Robert W. Lachapelle, Wendy O'Malley LePage, Evan M. Peck, Dominic Pelletier, Eric Allen Steva, Murthy V.S.N. Yerramilli
  • Patent number: 11035861
    Abstract: The disclosure is directed to methods and apparatus for the determination, diagnosis, progression and prognosis of kidney disease and mortality associated with kidney disease. The disclosure includes methods for determining renal function, in particular estimating glomerular filtration rate (GFR), in an animal. GFR can be useful in the diagnosis and treatment of kidney disease or dysfunction. In various aspects, the disclosure is directed to the use of free symmetrical dimethylarginine (SDMA) and creatinine in blood samples from animals, in particular cats and dogs, to determine glomerular filtration rate and kidney disease.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: June 15, 2021
    Assignee: IDEXX Laboratories, Inc.
    Inventors: Mahalakshmi Yerramilli, Murthy V S N Yerramilli
  • Publication number: 20200400683
    Abstract: The disclosure provides compositions and methods for the detection of renal disease and periodontal disease in mammals.
    Type: Application
    Filed: July 6, 2020
    Publication date: December 24, 2020
    Applicant: IDEXX Laboratories, Inc.
    Inventors: Mahalakshmi YERRAMILLI, Giosi FARACE, John J. QUINN, Murthy V.S.N. YERRAMILLI
  • Patent number: 10775365
    Abstract: Homogeneous immunoassays that allow for compensation of background signals inherent in samples and reagents. The use of homogeneous immunoassays for the detection of the presence or amount of symmetrical Dimethyl Arginine (SDMA) in biological samples. Reagents and kits for conducting the assays.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: September 15, 2020
    Assignee: IDEXX LABORATORIES, Inc.
    Inventors: Murthy V S N Yerramilli, Hongzhi Xie, Daniel Wayne Patch, Giosi Farace
  • Patent number: 10725052
    Abstract: The disclosure provides compositions and methods for the detection of renal disease and periodontal disease in mammals.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: July 28, 2020
    Assignee: IDEXX LABORATORIES, INC.
    Inventors: Mahalakshmi Yerramilli, Giosi Farace, John J. Quinn, Murthy V. S. N. Yerramilli
  • Publication number: 20200049719
    Abstract: This invention provides reagents and methods for diagnosing renal disease. Differential levels of inosine metabolite, and proteins: apolipoprotein C-I, apolipoprotein C-II, fibrinogen alpha chain, or fibrinogen A-alpha chain, kininogen, Inter-Alpha Inhibitor H4 (ITIH4), keratin Type I cytoskeletol 10 cystatin A, cystatin B and other polypeptides and fragments thereof provide biomarkers of renal disease and are described herein.
    Type: Application
    Filed: September 16, 2019
    Publication date: February 13, 2020
    Applicant: IDEXX Laboratories, Inc.
    Inventors: Mahalakshmi YERRAMILLI, Michael Randolph Atkinson, Murthy V.S.N. Yerramilli
  • Patent number: 10436797
    Abstract: This invention provides reagents and methods for diagnosing renal disease. Differential levels of inosine metabolite, and proteins: apolipoprotein C-I, apolipoprotein C-II, fibrinogen alpha chain, or fibrinogen A-alpha chain, kininogen, Inter-Alpha Inhibitor H4 (ITIH4), keratin Type I cytoskeletol 10 cystatin A, cystatin B and other polypeptides and fragments thereof provide biomarkers of renal disease and are described herein.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: October 8, 2019
    Assignee: IDEXX Laboratories, Inc.
    Inventors: Mahalakshmi Yerramilli, Michael Randolph Atkinson, Murthy V. S. N. Yerramilli
  • Publication number: 20180335423
    Abstract: Method of detecting Symmetrical dimethyl arginine (SDMA) in biological samples. SDMA analogs for generating anti-SDMA antibodies having little or no cross-reactivity with asymmetrical dimethyl arginine, arginine, and monomethylarginine. The analogs have a protected or free thiol (—SH) group or hydroxyl (—OH) group that allow them to be linked to a suitable conjugation target which can be, for example, a protein containing molecule of a label. The anti-SDMA antibodies can be used in diagnostic immunoassay for the diagnosis of SDMA associated disorders and/or diseases.
    Type: Application
    Filed: May 11, 2018
    Publication date: November 22, 2018
    Inventors: Murthy V.S.N. Yerramilli, Mahalakshmi Yerramilli, Michael Atkinson, Kwok Kam Yeung
  • Patent number: 9970927
    Abstract: Method of detecting Symmetrical dimethyl arginine (SDMA) in biological samples. SDMA analogs for generating anti-SDMA antibodies having little or no cross-reactivity with asymmetrical dimethyl arginine, arginine, and monomethylarginine. The analogs have a protected or free thiol (—SH) group or hydroxyl (—OH) group that allow them to be linked to a suitable conjugation target which can be, for example, a protein containing molecule of a label. The anti-SDMA antibodies can be used in diagnostic immunoassay for the diagnosis of SDMA associated disorders and/or diseases.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: May 15, 2018
    Assignee: IDEXX Laboratories, Inc.
    Inventors: Murthy V. S. N. Yerramilli, Mahalakshmi Yerramilli, Michael Atkinson, Kwok Kam Yeung
  • Publication number: 20170269101
    Abstract: The disclosure provides compositions and methods for the detection of renal disease and periodontal disease in mammals.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 21, 2017
    Inventors: Mahalakshmi Yerramilli, Giosi Farace, John J. Quinn, Murthy V.S.N. Yerramilli
  • Patent number: 9091684
    Abstract: Method of detecting Symmetrical dimethyl arginine (SDMA) in biological samples. SDMA analogs for generating anti-SDMA antibodies having little or no cross-reactivity with asymmetrical dimethyl arginine, arginine, and monomethylarginine. The analogs have a protected or free thiol (—SH) group or hydroxyl (—OH) group that allow them to be linked to a suitable conjugation target which can be, for example, a protein containing molecule of a label. The anti-SDMA antibodies can be used in diagnostic immunoassay for the diagnosis of SDMA associated disorders and/or diseases.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: July 28, 2015
    Assignee: IDEXX Laboratories, Inc.
    Inventors: Murthy V. S. N. Yerramilli, Mahalakshmi Yerramilli, Michael Atkinson, Kwok Kam Yeung
  • Publication number: 20140295464
    Abstract: A method for determining the amount of NT-proBNP in blood samples from felines. The method includes detecting degradation products of feline NT-proBNP by various methods, including using antibodies, kits and devices.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 2, 2014
    Inventors: Mahalakshmi Yerramilli, Michael Atkinson, Murthy V.S.N. Yerramilli
  • Publication number: 20140242723
    Abstract: Method of detecting Symmetrical dimethyl arginine (SDMA) in biological samples. SDMA analogs for generating anti-SDMA antibodies having little or no cross-reactivity with asymmetrical dimethyl arginine, arginine, and monomethylarginine. The analogs have a protected or free thiol (—SH) group or hydroxyl (—OH) group that allow them to be linked to a suitable conjugation target which can be, for example, a protein containing molecule of a label. The anti-SDMA antibodies can be used in diagnostic immunoassay for the diagnosis of SDMA associated disorders and/or diseases.
    Type: Application
    Filed: February 28, 2014
    Publication date: August 28, 2014
    Applicant: IDEXX Laboratories, Inc.
    Inventors: Murthy V.S.N. Yerramilli, Mahalakshmi Yerramilli, Michael Atkinson, Kwok Kam Yeung