Patents by Inventor Eric D. Turtle

Eric D. Turtle 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: 20250127913
    Abstract: The present disclosure provides a class of compounds including a ligand moiety that specifically binds to a cell surface receptor, such as a folate receptor. The cell surface folate binding compound can trigger the receptor to internalize into the cell a bound compound. The ligand moieties of this disclosure can be linked to a variety of moieties of interest without impacting the specific binding to, and function of, the cell surface receptor, e.g., folate receptor. Also provided are compounds that are conjugates of the ligand moieties linked to a biomolecule, such as an antibody, which conjugates can harness cellular pathways to remove specific proteins of interest from the cell surface or from the extracellular milieu. Also provided herein are methods of using the conjugates to target a polypeptide of interest for sequestration and/or lysosomal degradation.
    Type: Application
    Filed: June 24, 2022
    Publication date: April 24, 2025
    Inventors: Jason G. LEWIS, Eric D. TURTLE, Tao CHEN, Darin HILDEBRANDT
  • Publication number: 20250101007
    Abstract: The present disclosure provides a class of compounds including a ligand moiety that specifically binds to a cell surface asialoglycoprotein receptor (ASGPR). The cell surface ASGPR binding compounds can trigger the receptor to internalize into the cell a bound compound. The ligand moieties of this disclosure can be linked to a variety of moieties of interest without impacting the specific binding to, and function of, the cell surface receptor ASGPR. Also provided are compounds that are conjugates of the ligand moieties linked to a biomolecule, such as an antibody, which conjugates can harness cellular pathways to remove specific proteins of interest from the cell surface or from the extracellular milieu. Also provided herein methods of using the conjugates to target a polypeptide of interest for sequestration and/or lysosomal degradation.
    Type: Application
    Filed: December 9, 2024
    Publication date: March 27, 2025
    Inventors: Brett Bradley BUSCH, Justin Thomas ERNST, Garrick K. PACKARD, Jason G. LEWIS, Eric D. TURTLE
  • Patent number: 12258332
    Abstract: The present disclosure provides a class of compounds including a ligand moiety that specifically binds to a cell surface asialoglycoprotein receptor (ASGPR). The cell surface ASGPR binding compounds can trigger the receptor to internalize into the cell a bound compound. The ligand moieties of this disclosure can be linked to a variety of moieties of interest without impacting the specific binding to, and function of, the cell surface receptor ASGPR. Also provided are compounds that are conjugates of the ligand moieties linked to a biomolecule, such as an antibody, which conjugates can harness cellular pathways to remove specific proteins of interest from the cell surface or from the extracellular milieu. Also provided herein methods of using the conjugates to target a polypeptide of interest for sequestration and/or lysosomal degradation.
    Type: Grant
    Filed: April 14, 2023
    Date of Patent: March 25, 2025
    Assignee: Lycia Therapeutics, Inc.
    Inventors: Brett Bradley Busch, Justin Thomas Ernst, Garrick K. Packard, Jason G. Lewis, Eric D. Turtle
  • Publication number: 20240335544
    Abstract: The present disclosure provides a class of compounds including a ligand moiety that specifically binds to a cell surface mannose-6-phosphate receptor (M6PR). The M6PR binding compounds can trigger the receptor to internalize into the cell a bound compound. The ligand moieties of this disclosure can be linked to a variety of moieties of interest without impacting the specific binding to, and function of, the M6PR. Also provided are compound that are conjugates of the ligand moieties linked to a biomolecule, such as an antibody, which conjugates can harness cellular pathways to remove specific target proteins from the cell surface or the extracellular milieu. For example, the conjugates described herein may sequester and/or degrade a target molecule of interest in a cell's lysosome. Also provided are methods of using the conjugates to target a protein for sequestration and/or lysosomal degradation.
    Type: Application
    Filed: July 14, 2022
    Publication date: October 10, 2024
    Inventors: Brett Bradley BUSCH, Justin Thomas ERNST, Garrick K. PACKARD, Jason G. LEWIS, Eric D. TURTLE
  • Publication number: 20240165250
    Abstract: The present disclosure provides a class of compounds including a ligand moiety that specifically binds to a cell surface receptor, such as a folate receptor. The cell surface folate binding compound can trigger the receptor to internalize into the cell a bound compound. The ligand moieties of this disclosure can be linked to a variety of moieties of interest without impacting the specific binding to, and function of, the cell surface receptor, e.g., folate receptor. Also provided are compounds that are conjugates of the ligand moieties linked to a biomolecule, such as an antibody, which conjugates can harness cellular pathways to remove specific proteins of interest from the cell surface or from the extracellular milieu. Also provided herein are methods of using the conjugates to target a polypeptide of interest for sequestration and/or lysosomal degradation.
    Type: Application
    Filed: January 10, 2022
    Publication date: May 23, 2024
    Inventors: Jason G. Lewis, Eric D. Turtle, Brett Bradley Busch, Justin Thomas Ernst, Garrick K. Packard, Matthew James Shurtleff
  • Publication number: 20230250091
    Abstract: The present disclosure provides a class of compounds including a ligand moiety that specifically binds to a cell surface asialoglycoprotein receptor (ASGPR). The cell surface ASGPR binding compounds can trigger the receptor to internalize into the cell a bound compound. The ligand moieties of this disclosure can be linked to a variety of moieties of interest without impacting the specific binding to, and function of, the cell surface receptor ASGPR. Also provided are compounds that are conjugates of the ligand moieties linked to a biomolecule, such as an antibody, which conjugates can harness cellular pathways to remove specific proteins of interest from the cell surface or from the extracellular milieu. Also provided herein methods of using the conjugates to target a polypeptide of interest for sequestration and/or lysosomal degradation.
    Type: Application
    Filed: April 14, 2023
    Publication date: August 10, 2023
    Inventors: Brett Bradley BUSCH, Justin Thomas ERNST, Garrick K. PACKARD, Jason G. LEWIS, Eric D. TURTLE
  • Publication number: 20230158155
    Abstract: The present disclosure provides a class of compounds including a ligand moiety that specifically binds to a cell surface receptor, such as a mannose-6-phosphate receptor (M6PR) or a cell surface asialoglycoprotein receptor (ASGPR). The cell surface M6PR or ASGPR binding compounds can trigger the receptor to internalize into the cell abound compound. The ligand moieties of this disclosure can be linked to a variety of moieties of interest without impacting the specific binding to, and function of, the cell surface receptor, e.g., M6PR or ASGPR. Also provided are compounds that are conjugates of the ligand moieties linked to a biomolecule, such as an antibody, which conjugates can harness cellular pathways to remove specific proteins of interest from the cell surface or from the extracellular milieu. Also provided are methods of using the conjugates to target a polypeptide of interest for sequestration and/or lysosomal degradation.
    Type: Application
    Filed: January 8, 2021
    Publication date: May 25, 2023
    Inventors: Brett Bradley BUSCH, Justin Thomas ERNST, Garrick K. PACKARD, Jason G. LEWIS, Eric D. TURTLE
  • Patent number: 11229637
    Abstract: The present invention relates to compounds suitable for use in mediating hypoxia inducible factor and for treating erythropoietin-associated conditions by increasing endogenous erythropoietin in vitro and in vivo.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: January 25, 2022
    Assignee: FibroGen, Inc.
    Inventors: Michael P. Arend, Lee A. Flippin, Volkmar Guenzler-Pukall, Wen-Bin Ho, Eric D. Turtle, Xiaohui Du
  • Publication number: 20210060000
    Abstract: The present invention relates to compounds suitable for use in mediating hypoxia inducible factor and for treating erythropoietin-assocaited conditions by increasing endogenous erythropoietin in vitro and in vivo.
    Type: Application
    Filed: March 13, 2020
    Publication date: March 4, 2021
    Inventors: Michael P. Arend, Lee A. Flippin, Volkmar Guenzler-Pukall, Wen-Bin Ho, Eric D. Turtle, Xiaohui Du
  • Patent number: 10646482
    Abstract: The present invention relates to compounds suitable for use in mediating hypoxia inducible factor and for treating erythropoietin-associated conditions by increasing endogenous erythropoietin in vitro and in vivo.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: May 12, 2020
    Assignee: FibroGen, Inc.
    Inventors: Michael P. Arend, Lee A. Flippin, Volkmar Guenzler-Pukall, Wen-Bin Ho, Eric D. Turtle, Xiaohui Du
  • Publication number: 20190240213
    Abstract: The present invention relates to compounds suitable for use in mediating hypoxia inducible factor and for treating erythropoietin-associated conditions by increasing endogenous erythropoietin in vitro and in vivo.
    Type: Application
    Filed: August 22, 2018
    Publication date: August 8, 2019
    Inventors: Michael P. Arend, Lee A. Flippin, Volkmar Guenzler-Pukall, Wen-Bin Ho, Eric D. Turtle, Xiaohui Du
  • Patent number: 10092558
    Abstract: The present invention relates to compounds suitable for use in mediating hypoxia inducible factor and for treating erythropoietin-associated conditions by increasing endogenous erythropoietin in vitro and in vivo.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: October 9, 2018
    Assignee: FibroGen, Inc.
    Inventors: Michael P. Arend, Lee A. Flippin, Volkmar Guenzler-Pukall, Wen-Bin Ho, Eric D. Turtle, Xiaohui Du
  • Publication number: 20170035747
    Abstract: The present invention relates to compounds suitable for use in mediating hypoxia inducible factor and for treating erythropoietin-associated conditions by increasing endogenous erythropoietin in vitro and in vivo.
    Type: Application
    Filed: April 19, 2016
    Publication date: February 9, 2017
    Inventors: Michael P. Arend, Lee A. Flippin, Volkmar Guenzler-Pukall, Wen-Bin Ho, Eric D. Turtle, Xiaohui Du
  • Patent number: 9339527
    Abstract: The present invention relates to compounds suitable for use in mediating hypoxia inducible factor and for treating erythropoietin-associated conditions by increasing endogenous erythropoietin in vitro and in vivo.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: May 17, 2016
    Assignee: FibroGen, Inc.
    Inventors: Michael P. Arend, Lee A. Flippin, Volkmar Guenzler-Pukall, Wen-Bin Ho, Eric D. Turtle, Xiaohui Du
  • Publication number: 20160009653
    Abstract: The present invention relates to cyanoisoquinoline compounds suitable for use in treating hypoxia inducible factor-mediated and/or erythropoictin-associated conditions.
    Type: Application
    Filed: September 21, 2015
    Publication date: January 14, 2016
    Inventors: Michael Arend, Lee A. Flippin, Min Wu, Eric D. Turtle, Wen-Bin Ho, Shaojiang Deng
  • Patent number: 9174976
    Abstract: The present invention relates to cyanoisoquinoline compounds suitable for use in treating hypoxia inducible factor-mediated and/or erythropoietin-associated conditions.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: November 3, 2015
    Assignee: FIBROGEN, INC.
    Inventors: Michael Arend, Lee A. Flippin, Min Wu, Eric D. Turtle, Wen-Bin Ho, Shaojiang Deng
  • Patent number: 9149476
    Abstract: The present invention relates to novel compounds, methods, and compositions capable of decreasing HIF hydroxylase enzyme activity, thereby increasing the stability and/or activity of hypoxia inducible factor (HIF).
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: October 6, 2015
    Assignee: FIBROGEN, INC.
    Inventors: Wen-Bin Ho, Lee A. Flippin, Craig Mossman, Eric D. Turtle, Lee R. Wright
  • Publication number: 20150182528
    Abstract: The present invention relates to novel compounds, methods, and compositions capable of decreasing HIF hydroxylase enzyme activity, thereby increasing the stability and/or activity of hypoxia inducible factor (HIF).
    Type: Application
    Filed: December 24, 2014
    Publication date: July 2, 2015
    Inventors: Wen-Bin Ho, Lee A. Flippin, Craig Mossman, Eric D. Turtle, Lee R. Wright
  • Patent number: 9000006
    Abstract: The present invention relates to novel compounds capable of modulating the stability and/or activity of hypoxia inducible factor (HIF).
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: April 7, 2015
    Assignee: Fibrogen, Inc.
    Inventors: Eric D. Turtle, Lee A. Flippin, Michael P. Arend, Heng Cheng
  • Publication number: 20150031696
    Abstract: The present invention relates to cyanoisoquinoline compounds suitable for use in treating hypoxia inducible factor-mediated and/or erythropoietin-associated conditions.
    Type: Application
    Filed: May 28, 2014
    Publication date: January 29, 2015
    Applicant: FIBROGEN, INC.
    Inventors: Michael Arend, Lee A. Flippin, Min Wu, Eric D. Turtle, Wen-Bin Ho, Shaojiang Deng