Patents by Inventor Chakrapani Subramanyam

Chakrapani Subramanyam 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: 11365263
    Abstract: The present invention is directed to novel bifunctional CTI-CTI and CBI-CTI dimers of the formula: F1-L1-T-L2-F2 where F1, L1, T, L2 and F2 are as defined herein, useful for the treatment for proliferative diseases, where the inventive dimers can function as stand-alone drugs, payloads in antibody-drug-conjugates (ADCs), and linker-payload compounds useful in connection with the production or administration of such ADCs; and to compositions including the aforementioned dimers, linker-payloads and ADCs, and methods for using these dimers, linker-payloads and ADCs, to treat pathological conditions including cancer.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: June 21, 2022
    Assignee: PFIZER INC.
    Inventors: Andreas Maderna, Chakrapani Subramanyam, Lawrence N. Tumey, Zecheng Chen, Jeffrey M. Casavant
  • Publication number: 20210061923
    Abstract: The present invention is directed to novel bifunctional CTI-CTI and CBI-CTI dimers of the formula: F1-L1-T-L2-F2 where F1, L1, T, L2 and F2 are as defined herein, useful for the treatment for proliferative diseases, where the inventive dimers can function as stand-alone drugs, payloads in antibody-drug-conjugates (ADCs), and linker-payload compounds useful in connection with the production or administration of such ADCs; and to compositions including the aforementioned dimers, linker-payloads and ADCs, and methods for using these dimers, linker-payloads and ADCs, to treat pathological conditions including cancer.
    Type: Application
    Filed: November 6, 2020
    Publication date: March 4, 2021
    Applicant: PFIZER INC.
    Inventors: Andreas MADERNA, Chakrapani SUBRAMANYAM, Lawrence N. TUMEY, Zecheng CHEN, Jeffrey M. CASAVANT
  • Patent number: 10870706
    Abstract: The present invention is directed to novel bifunctional CTI-CTI and CBI-CTI dimers of the formula: F1-L1-T-L2-F2 where F1, L1, T, L2 and F2 are as defined herein, useful for the treatment for proliferative diseases, where the inventive dimers can function as stand-alone drugs, payloads in antibody-drug-conjugates (ADCs), and linker-payload compounds useful in connection with the production or administration of such ADCs; and to compositions including the aforementioned dimers, linker-payloads and ADCs, and methods for using these dimers, linker-payloads and ADCs, to treat pathological conditions including cancer.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: December 22, 2020
    Assignee: PFIZER INC.
    Inventors: Andreas Maderna, Chakrapani Subramanyam, Lawrence N. Tumey, Zecheng Chen, Jeffrey M. Casavant
  • Patent number: 10723727
    Abstract: The present invention is directed to novel cytotoxic tubulysin analogs and derivatives, to antibody drug conjugates thereof, and to methods for using the same to treat medical conditions including cancer.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: July 28, 2020
    Assignee: Pfizer Inc.
    Inventors: Chakrapani Subramanyam, Lawrence N. Tumey, Longfei Xie, Carolyn Leverett, Beth C. Vetelino, Sai Chetan K. Sukuru, Sarah Hudson, Venkata Ramana Doppalapudi, Abhijit S. Bhat
  • Publication number: 20190345186
    Abstract: The present invention is directed to novel calicheamicin derivatives useful as payloads in antibody-drug-conjugates (ADC's), and to payload-linker compounds and ADC compounds comprising the same; to pharmaceutical compositions comprising the same and to methods for using the same to treat pathological conditions such as cancer.
    Type: Application
    Filed: January 10, 2018
    Publication date: November 14, 2019
    Applicant: PFIZER INC.
    Inventors: Omar Khaled Ahmad, Stephen Paul Brown, Kenneth John Dirico, Russell Dushin, Gary Frederick Filzen, Sujiet Puthenveetil, Pavel Strop, Chakrapani Subramanyam, Lawrence N. Tumey
  • Publication number: 20190269791
    Abstract: The present invention provides antibodies and antibody-drug conjugates that bind to the extra domain B splice variant of fibronectin 1 and methods for preparing and using the same.
    Type: Application
    Filed: October 3, 2017
    Publication date: September 5, 2019
    Applicant: Pfizer Inc.
    Inventors: Andrea Therese HOOPER, Kimberly Ann MARQUETTE, Chakrapani SUBRAMANYAM, Hans-Peter GERBER, Chad Michael MAY
  • Patent number: 10391182
    Abstract: Cytotoxic dimers comprising CBI-based and/or CPI-based sub-units, antibody drug conjugates comprising such dimers, and to methods for using the same to treat cancer and other conditions.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: August 27, 2019
    Assignee: Pfizer Inc.
    Inventors: Andreas Maderna, Matthew David Doroski, Zecheng Chen, Hud Lawrence Risley, Jeffrey Michael Casavant, Christopher John O'Donnell, Alexander M. Porte, Chakrapani Subramanyam
  • Publication number: 20180362519
    Abstract: The present invention is directed to novel cytotoxic tubulysin analogs and derivatives, to antibody drug conjugates thereof, and to methods for using the same to treat medical conditions including cancer.
    Type: Application
    Filed: January 27, 2017
    Publication date: December 20, 2018
    Applicants: PFIZER INC., CovX Technologies Ireland Limited
    Inventors: Chakrapani SUBRAMANYAM, Lawrence N. TUMEY, Longfei XIE, Carolyn LEVERETT, Beth C. VETELINO, Sai Chetan K. SUKURU, Sarah HUDSON, Venkata Ramana DOPPALAPUDI, Abhijit S. BHAT
  • Publication number: 20180346477
    Abstract: The present invention provides, in part, compounds of Formula I: and pharmaceutically acceptable salts thereof; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds or salts, and their uses for treating D1-mediated (or D1-associated) disorders including, e.g., schizophrenia (e.g., its cognitive and negative symptoms), schizotypal personality disorder, cognitive impairment (e.g., cognitive impairment associated with schizophrenia, AD, PD, or pharmacotherapy therapy), ADHD, Parkinson's disease, anxiety, and depression.
    Type: Application
    Filed: August 10, 2018
    Publication date: December 6, 2018
    Applicant: PFIZER INC.
    Inventors: DAVID LAWRENCE FIRMAN GRAY, LEI ZHANG, JENNIFER ELIZABETH DAVOREN, AMY BETH DOUNAY, IVAN VIKTOROVICH EFREMOV, CHEWAH LEE, SCOT RICHARD MENTE, STEVEN VICTOR O'NEIL, BRUCE NELSEN ROGERS, CHAKRAPANI SUBRAMANYAM
  • Publication number: 20180339060
    Abstract: Cytotoxic dimers comprising CBI-based and/or CPI-based sub-units, antibody drug conjugates comprising such dimers, and to methods for using the same to treat cancer and other conditions.
    Type: Application
    Filed: August 2, 2018
    Publication date: November 29, 2018
    Applicant: PFIZER INC.
    Inventors: Andreas MADERNA, Matthew David DOROSKI, Zecheng CHEN, Hud Lawrence RISLEY, Jeffrey Michael CASAVANT, Christopher John O'DONNELL, Alexander M. PORTE, Chakrapani SUBRAMANYAM
  • Patent number: 10086085
    Abstract: Cytotoxic dimers comprising CBI-based and/or CPI-based sub-units, antibody drug conjugates comprising such dimers, and to methods for using the same to treat cancer and other conditions.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: October 2, 2018
    Assignee: Pfizer Inc.
    Inventors: Andreas Maderna, Matthew David Doroski, Zecheng Chen, Hud Lawrence Risley, Jeffrey Michael Casavant, Christopher John O'Donnell, Alexander M. Porte, Chakrapani Subramanyam
  • Patent number: 10077272
    Abstract: The present invention provides, in part, compounds of Formula I: and pharmaceutically acceptable salts thereof; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds or salts, and their uses for treating D1-mediated (or D1-associated) disorders including, e.g., schizophrenia (e.g., its cognitive and negative symptoms), schizotypal personality disorder, cognitive impairment (e.g., cognitive impairment associated with schizophrenia, AD, PD, or pharmacotherapy therapy), ADHD, Parkinson's disease, anxiety, and depression.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: September 18, 2018
    Assignee: Pfizer Inc.
    Inventors: David Lawrence Firman Gray, Lei Zhang, Jennifer Elizabeth Davoren, Amy Beth Dounay, Ivan Viktorovich Efremov, Chewah Lee, Scot Richard Mente, Steven Victor O'Neil, Bruce Nelsen Rogers, Chakrapani Subramanyam
  • Publication number: 20180200253
    Abstract: The present invention provides, in part, compounds of Formula I: and pharmaceutically acceptable salts thereof and N-oxides thereof; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds and the uses of such compounds for the treatment of D1-mediated (or D1-associated) disorders including cognitive and motivational impairments and negative symptoms associated with illnesses such as schizophrenia, depression, bipolar disorder, Parkinson's disease, Mild cognitive impairment (MCI), Alzheimer's disease, lupus, Huntington's disease, Parkinson's, dyskinesia, ADHD, post-traumatic stress disorder, autism spectrum disorder, treatment-resistant depression, major depressive disorder (MDD), drug dependence, Tourette's syndrome, tardive dyskinesias as well as impairments associated with age, chronic stress, sleep deprivation, combat, chronic fatigue; endocrine or metabolic diseases such as hyperglycemia, dislipidemia, diabetes, obesity, and sepsis; and c
    Type: Application
    Filed: March 16, 2018
    Publication date: July 19, 2018
    Applicant: PFIZER INC.
    Inventors: JOTHAM WADSWORTH COE, JOHN ARTHUR ALLEN, JENNIFER ELIZABETH DAVOREN, AMY BETH DOUNAY, IVAN VIKTOROVICH EFREMOV, DAVID LAWRENCE FIRMAN GRAY, EDWARD RAYMOND GUILMETTE, ANTHONY RICHARD HARRIS, CHRISTOPHER JOHN HELAL, JACLYN LOUISE HENDERSON, SCOT RICHARD MENTE, DEANE MILFORD NASON, STEVEN VICTOR O'NEIL, CHAKRAPANI SUBRAMANYAM, WENJIAN XU
  • Publication number: 20180072750
    Abstract: The present invention provides, in part, compounds of Formula I: and pharmaceutically acceptable salts thereof; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds or salts, and their uses for treating D1-mediated (or D1-associated) disorders including, e.g., schizophrenia (e.g., its cognitive and negative symptoms), schizotypal personality disorder, cognitive impairment (e.g., cognitive impairment associated with schizophrenia, AD, PD, or pharmacotherapy therapy), ADHD, Parkinson's disease, anxiety, and depression.
    Type: Application
    Filed: November 27, 2017
    Publication date: March 15, 2018
    Applicant: PFIZER INC.
    Inventors: DAVID LAWRENCE FIRMAN GRAY, LEI ZHANG, JENNIFER ELIZABETH DAVOREN, AMY BETH DOUNAY, IVAN VIKTOROVICH EFREMOV, CHEWAH LEE, SCOT RICHARD MENTE, STEVEN VICTOR O'NEIL, BRUCE NELSEN ROGERS, CHAKRAPANI SUBRAMANYAM
  • Patent number: 9868744
    Abstract: The present invention provides, in part, compounds of Formula (I) and pharmaceutically acceptable salts thereof; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds or salts, and their uses for treating D1-mediated (or D1-associated) disorders including, e.g., schizophrenia (e.g., its cognitive and negative symptoms), schizotypal personality disorder, cognitive impairment (e.g., cognitive impairment associated with schizophrenia, AD, PD, or pharmacotherapy therapy), ADHD, Parkinson's disease, anxiety, and depression.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: January 16, 2018
    Assignee: Pfizer Inc.
    Inventors: David Lawrence Firman Gray, Lei Zhang, Jennifer Elizabeth Davoren, Amy Beth Dounay, Ivan Viktorovich Efremov, Chewah Lee, Scot Richard Mente, Steven Victor O'Neil, Bruce Nelsen Rogers, Chakrapani Subramanyam
  • Patent number: 9856263
    Abstract: The present invention provides, in part, compounds of Formula (I): and pharmaceutically acceptable salts thereof; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds or salts, and their uses for treating D1-mediated (or D1-associated) disorders including, e.g., schizophrenia (e.g., its cognitive and negative symptoms), schizotypal personality disorder, cognitive impairment (e.g., cognitive impairment associated with schizophrenia, AD, PD, or pharmacotherapy therapy), ADHD, Parkinson's disease, anxiety, and depression.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: January 2, 2018
    Assignee: PFIZER INC.
    Inventors: David Lawrence Firman Gray, Jennifer Elizabeth Davoren, Amy Beth Dounay, Ivan Viktorovich Efremov, Scot Richard Mente, Chakrapani Subramanyam
  • Patent number: 9850232
    Abstract: The present invention provides, in part, compounds of Formula I: and pharmaceutically acceptable salts thereof; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds or salts, and their uses for treating D1-mediated (or D1-associated) disorders including, e.g., schizophrenia (e.g., its cognitive and negative symptoms), schizotypal personality disorder, cognitive impairment (e.g., cognitive impairment associated with schizophrenia, AD, PD, or pharmacotherapy therapy), ADHD, Parkinson's disease, anxiety, and depression.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: December 26, 2017
    Assignee: PFIZER INC.
    Inventors: David Lawrence Firman Gray, Lei Zhang, Michael Aaron Brodney, Michael Eric Green, Chakrapani Subramanyam
  • Patent number: 9764040
    Abstract: The present invention is directed to novel cytotoxic spliceostatin analogs and derivatives, to antibody drug conjugates thereof, and to methods for using the same to treat medical conditions including cancer.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: September 19, 2017
    Assignee: Pfizer Inc.
    Inventors: Chakrapani Subramanyam, Frank Erich Koehn, Kenneth John Dirico, Alessandra S. Eustaquio, Michael Eric Green, Haiyin He, Min He, Christopher John O'Donnell, Sujiet Puthenveetil, Anokha Ratnayake, Jesse Alexander Teske, Hui Yu Yang
  • Patent number: 9751877
    Abstract: Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: September 5, 2017
    Assignee: PFIZER INC.
    Inventors: Martin Youngjin Pettersson, Douglas Scott Johnson, Chakrapani Subramanyam, Christopher John O'Donnell, Christopher William am Ende, Michael Eric Green, Nandini Chaturbhai Patel, Cory Michael Stiff, Tuan Phong Tran, Gregory Wayne Kauffman, Antonia Friederike Stepan, Patrick Robert Verhoest
  • Patent number: 9688698
    Abstract: The present invention provides, in part, compounds of Formula I: and pharmaceutically acceptable salts thereof; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds or salts, and their uses for treating D1-mediated (or D1-associated) disorders including, e.g., schizophrenia (e.g., its cognitive and negative symptoms), schizotypal personality disorder, cognitive impairment (e.g., cognitive impairment associated with schizophrenia, AD, PD, or pharmacotherapy therapy), ADHD, Parkinson's disease, anxiety, and depression.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: June 27, 2017
    Assignee: PFIZER INC.
    Inventors: David Lawrence Firman Gray, Lei Zhang, Jennifer Elizabeth Davoren, Amy Beth Dounay, Ivan Viktorovich Efremov, Scot Richard Mente, Chakrapani Subramanyam