Patents by Inventor W. Brad Wan

W. Brad Wan 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: 20230055405
    Abstract: Provided are compounds, methods, and pharmaceutical compositions for reducing the amount or activity of APP RNA in a cell or animal, and in certain instances reducing the amount of APP protein in a cell or animal. Such compounds, methods, and pharmaceutical compositions are useful to ameliorate at least one symptom or hallmark of a neurodegenerative disease or disorder. Such symptoms and hallmarks include cognitive impairment, including a decline in memory and language skills, behavioral and psychological symptoms such as apathy and lack of motivation, gait disturbances and seizures, progressive dementia, and abnormal amyloid deposits.
    Type: Application
    Filed: July 28, 2021
    Publication date: February 23, 2023
    Applicant: Ionis Pharmaceuticals, Inc.
    Inventors: Huynh-Hoa Bui, Susan M. Freier, Hien Thuy Zhao, Holly Kordasiewicz, Ruben E. Valas, Thazha P. Prakash, W. Brad Wan
  • Publication number: 20220064638
    Abstract: Provided are compounds, methods, and pharmaceutical compositions for modulating SMN2 RNA and/or protein in a cell or subject. Such compounds, methods, and pharmaceutical compositions are useful to ameliorate at least one symptom of a neurodegenerative disorder. Such symptoms include reduced muscle strength; inability or reduced ability to sit upright, to stand, and/or walk; reduced neuromuscular activity; reduced electrical activity in one or more muscles; reduced respiration; inability or reduced ability to eat, drink, and/or breathe without assistance; loss of weight or reduced weight gain; and/or decreased survival.
    Type: Application
    Filed: February 26, 2021
    Publication date: March 3, 2022
    Applicant: Ionis Pharmaceuticals, Inc.
    Inventors: Frank Rigo, Thazha P. Prakash, Kar Yun Karen Ling, W. Brad Wan, William John Drury, III
  • Patent number: 10751419
    Abstract: Provided herein are improved methods for the synthesis of reactive conjugate clusters and intermediates used in such methods. In particular, improvements are provided that enhance the synthesis of reactive conjugate clusters by reducing the number of synthetic steps required. The reactive conjugate clusters prepared using the improved methods don't include any transacylation impurities that are formed using existing methods. The improved methods also provide an increase in overall yield and a cost benefit over existing methods.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: August 25, 2020
    Assignee: Ionis Pharmaceuticals, Inc.
    Inventors: Michael T. Migawa, Jinghua Yu, W. Brad Wan, Sayten P. Patel, Guillermo Vasquez, Garth A. Kinberger, Thazha P. Prakash, Punit P. Seth, Eric E. Swayze
  • Publication number: 20190209694
    Abstract: Provided herein are improved methods for the synthesis of reactive conjugate clusters and intermediates used in such methods. In particular, improvements are provided that enhance the synthesis of reactive conjugate clusters by reducing the number of synthetic steps required. The reactive conjugate clusters prepared using the improved methods don't include any transacylation impurities that are formed using existing methods. The improved methods also provide an increase in overall yield and a cost benefit over existing methods.
    Type: Application
    Filed: September 7, 2018
    Publication date: July 11, 2019
    Applicant: Ionis Pharmaceuticals, Inc.
    Inventors: Michael T. Migawa, Jinghua Yu, W. Brad Wan, Sayten P. Patel, Guillermo Vasquez, Garth A. Kinberger, Thazha P. Prakash, Punit P. Seth, Eric E. Swayze
  • Patent number: 10344275
    Abstract: The present invention provides oligomeric compounds comprising at least one neutral methoxypropyl phosphonate modified internucleoside linkage. Such oligomeric compounds have one or more improved properties such as selectivity, potency, improved toxicity profile and or improved proinflammatory profile. Such oligomeric compounds have enhanced stability to exposure to base during synthesis. Certain such oligomeric compounds are useful for hybridizing to a complementary nucleic acid, including but not limited, to nucleic acids in a cell. In certain embodiments, hybridization results in modulation of the amount activity or expression of the target nucleic acid in a cell.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: July 9, 2019
    Assignee: Ionis Pharmaceuticals, Inc.
    Inventors: W. Brad Wan, Michael T. Migawa, Michael Oestergaard, Eric E. Swayze, Punit P. Seth
  • Publication number: 20180305687
    Abstract: The present invention provides oligomeric compounds comprising at least one neutral methoxypropyl phosphonate modified internucleoside linkage. Such oligomeric compounds have one or more improved properties such as selectivity, potency, improved toxicity profile and or improved proinflammatory profile. Such oligomeric compounds have enhanced stability to exposure to base during synthesis. Certain such oligomeric compounds are useful for hybridizing to a complementary nucleic acid, including but not limited, to nucleic acids in a cell. In certain embodiments, hybridization results in modulation of the amount activity or expression of the target nucleic acid in a cell.
    Type: Application
    Filed: February 8, 2018
    Publication date: October 25, 2018
    Applicant: Ionis Pharmaceuticals, Inc.
    Inventors: W. Brad Wan, Michael T. Migawa, Michael Oestergaard, Eric E. Swayze, Punit P. Seth
  • Patent number: 10098959
    Abstract: Provided herein are improved methods for the synthesis of reactive conjugate clusters and intermediates used in such methods. In particular, improvements are provided that enhance the synthesis of reactive conjugate clusters by reducing the number of synthetic steps required. The reactive conjugate clusters prepared using the improved methods don't include any transacylation impurities that are formed using existing methods. The improved methods also provide an increase in overall yield and a cost benefit over existing methods.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: October 16, 2018
    Assignee: Ionis Pharmaceuticals, Inc.
    Inventors: Michael T. Migawa, Jinghua Yu, W. Brad Wan, Satyen P. Patel, Guillermo Vasquez, Garth A. Kinberger, Thazha P. Prakash, Punit P. Seth, Eric E. Swayze
  • Patent number: 9926556
    Abstract: The present invention provides oligomeric compounds comprising at least one neutral methoxypropyl phosphonate modified internucleoside linkage. Such oligomeric compounds have one or more improved properties such as selectivity, potency, improved toxicity profile and or improved proinflammatory profile. Such oligomeric compounds have enhanced stability to exposure to base during synthesis. Certain such oligomeric compounds are useful for hybridizing to a complementary nucleic acid, including but not limited, to nucleic acids in a cell. In certain embodiments, hybridization results in modulation of the amount activity or expression of the target nucleic acid in a cell.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: March 27, 2018
    Assignee: Ionis Pharmaceuticals, Inc.
    Inventors: W. Brad Wan, Michael T. Migawa, Michael Oestergaard, Eric E. Swayze, Punit P. Seth
  • Patent number: 9701708
    Abstract: Provided herein are methods for the synthesis of oligomeric compounds wherein the standard coupling protocols are modified when coupling bicyclic nucleosides of Formula I. More particularly, the modified coupling protocols provide for a decrease in the ratio of phosphoramidite solution to activator solution in the coupling reagent with an increased contact time. The modified coupling protocols provide for oligomeric compounds having comparable yields to similar oligomeric compounds having modified nucleosides other than bicyclic nucleosides of Formula I.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: July 11, 2017
    Assignee: Ionis Pharmaceuticals, Inc.
    Inventors: Isaiah E. Cedillo, Michael T. Migawa, W. Brad Wan
  • Publication number: 20170043025
    Abstract: Provided herein are improved methods for the synthesis of reactive conjugate clusters and intermediates used in such methods. In particular, improvements are provided that enhance the synthesis of reactive conjugate clusters by reducing the number of synthetic steps required. The reactive conjugate clusters prepared using the improved methods don't include any transacylation impurities that are formed using existing methods. The improved methods also provide an increase in overall yield and a cost benefit over existing methods.
    Type: Application
    Filed: May 1, 2015
    Publication date: February 16, 2017
    Applicant: Ionis Pharmaceuticals, Inc.
    Inventors: Michael T. Migawa, Jinghua Yu, W. Brad Wan, Satyen P. Patel, Guillermo Vasquez, Garth A. Kinberger, Thazha P. Prakash, Punit P. Seth, Eric E. Swayze
  • Publication number: 20170044526
    Abstract: The present invention provides oligomeric compounds comprising at least one neutral methoxypropyl phosphonate modified internucleoside linkage. Such oligomeric compounds have one or more improved properties such as selectivity, potency, improved toxicity profile and or improved proinflammatory profile. Such oligomeric compounds have enhanced stability to exposure to base during synthesis. Certain such oligomeric compounds are useful for hybridizing to a complementary nucleic acid, including but not limited, to nucleic acids in a cell. In certain embodiments, hybridization results in modulation of the amount activity or expression of the target nucleic acid in a cell.
    Type: Application
    Filed: April 28, 2015
    Publication date: February 16, 2017
    Applicant: Ionis Pharmaceuticals, Inc.
    Inventors: W. Brad Wan, Michael T. Migawa, Michael Oestergaard, Eric E. Swayze, Punit P. Seth
  • Publication number: 20150368288
    Abstract: Provided herein are methods for the synthesis of oligomeric compounds wherein the standard coupling protocols are modified when coupling bicyclic nucleosides of Formula I. More particularly, the modified coupling protocols provide for a decrease in the ratio of phosphoramidite solution to activator solution in the coupling reagent with an increased contact time. The modified coupling protocols provide for oligomeric compounds having comparable yields to similar oligomeric compounds having modified nucleosides other than bicyclic nucleosides of Formula I.
    Type: Application
    Filed: January 30, 2014
    Publication date: December 24, 2015
    Applicant: ISIS PHARMACEUTICALS, INC.
    Inventors: Isaiah E. Cedillo, Michael T. Migawa, W. Brad Wan
  • Patent number: 8193167
    Abstract: Compounds and compositions are provided for treatment, prevention, or amelioration of a variety of medical disorders associated with viral infections, cell proliferation and bone metabolism. The compounds provided herein are alkyl esters of phosphonates.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: June 5, 2012
    Assignees: The Regents of the University of California, The United States of America, Department of Veterans Affairs
    Inventors: Karl Y. Hostetler, W. Brad Wan
  • Publication number: 20100273742
    Abstract: Compounds and compositions are provided for treatment, prevention, or amelioration of a variety of medical disorders associated with viral infections, cell proliferation and bone metabolism. The compounds provided herein are alkyl esters of phosphonates.
    Type: Application
    Filed: December 10, 2009
    Publication date: October 28, 2010
    Applicant: The Regents of the University of California
    Inventors: Karl Y. Hostetler, W. Brad Wan
  • Patent number: 7652001
    Abstract: Compounds and compositions are provided for treatment, prevention, or amelioration of a variety of medical disorders associated with viral infections, cell proliferation and bone metabolism. The compounds provided herein are alkyl esters of phosphonates.
    Type: Grant
    Filed: February 7, 2005
    Date of Patent: January 26, 2010
    Assignee: The Regents of the University of California
    Inventors: Karl Y. Hostetler, W. Brad Wan