Patents by Inventor Kam Siu

Kam Siu 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: 20230203030
    Abstract: The present invention relates to bifunctional compounds, which find utility as modulators of targeted ubiquitination, especially inhibitors of a variety of polypeptides and other proteins which are degraded and/or otherwise inhibited by bifunctional compounds according to the present invention. In particular, the present invention is directed to compounds, which contain on one end a VHL ligand which binds to the ubiquitin ligase and on the other end a moiety which binds a target protein such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of that protein. The present invention exhibits a broad range of pharmacological activities associated with compounds according to the present invention, consistent with the degradation/inhibition of targeted polypeptides.
    Type: Application
    Filed: September 13, 2022
    Publication date: June 29, 2023
    Inventors: Andrew P. Crew, Craig M. Crews, Xin Chen, Hanqing Dong, Caterina Ferraro, Yimin Qian, Kam Siu, Jing Wang, Meizhong Jin, Michael Berlin, Kurt Zimmermann, Lawrence Snyder
  • Patent number: 11512083
    Abstract: The present invention relates to bifunctional compounds, which find utility as modulators of targeted ubiquitination, especially inhibitors of a variety of polypeptides and other proteins which are degraded and/or otherwise inhibited by bifunctional compounds according to the present invention. In particular, the present invention is directed to compounds, which contain on one end a VHL ligand which binds to the ubiquitin ligase and on the other end a moiety which binds a target protein such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of that protein. The present invention exhibits a broad range of pharmacological activities associated with compounds according to the present invention, consistent with the degradation/inhibition of targeted polypeptides.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: November 29, 2022
    Assignees: Arvinas Operations, Inc., Yale University
    Inventors: Andrew P. Crew, Craig M. Crews, Xin Chen, Hanqing Dong, Caterina Ferraro, Yimin Qian, Kam Siu, Jing Wang, Meizhong Jin, Michael Berlin, Kurt Zimmermann
  • Publication number: 20200392131
    Abstract: The present invention relates to bifunctional compounds, which find utility as modulators of targeted ubiquitination, especially inhibitors of a variety of polypeptides and other proteins which are degraded and/or otherwise inhibited by bifunctional compounds according to the present invention. In particular, the present invention is directed to compounds, which contain on one end a VHL ligand which binds to the ubiquitin ligase and on the other end a moiety which binds a target protein such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of that protein. The present invention exhibits a broad range of pharmacological activities associated with compounds according to the present invention, consistent with the degradation/inhibition of targeted polypeptides.
    Type: Application
    Filed: June 18, 2020
    Publication date: December 17, 2020
    Inventors: Andrew P. Crew, Craig M. Crews, Xin Chen, Hanqing Dong, Caterina Ferraro, Yimin Qian, Kam Siu, Jing Wang, Meizhong Jin, Michael Berlin, Kurt Zimmermann, Lawrence Snyder
  • Patent number: 10730870
    Abstract: The present invention relates to bifunctional compounds, which find utility as modulators of targeted ubiquitination, especially inhibitors of a variety of polypeptides and other proteins which are degraded and/or otherwise inhibited by bifunctional compounds according to the present invention. In particular, the present invention is directed to compounds, which contain on one end a VHL ligand which binds to the ubiquitin ligase and on the other end a moiety which binds a target protein such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of that protein. The present invention exhibits a broad range of pharmacological activities associated with compounds according to the present invention, consistent with the degradation/inhibition of targeted polypeptides.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: August 4, 2020
    Assignees: ARVINAS OPERATIONS, INC., YALE UNIVERSITY
    Inventors: Andrew P. Crew, Craig M. Crews, Xin Chen, Hanqing Dong, Caterina Ferraro, Yimin Qian, Kam Siu, Jing Wang, Meizhong Jin, Michael Berlin, Kurt Zimmermann, Lawrence Snyder
  • Publication number: 20160272639
    Abstract: The present invention relates to bifunctional compounds, which find utility as modulators of targeted ubiquitination, especially inhibitors of a variety of polypeptides and other proteins which are degraded and/or otherwise inhibited by bifunctional compounds according to the present invention. In particular, the present invention is directed to compounds, which contain on one end a VHL ligand which binds to the ubiquitin ligase and on the other end a moiety which binds a target protein such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of that protein. The present invention exhibits a broad range of pharmacological activities associated with compounds according to the present invention, consistent with the degradation/inhibition of targeted polypeptides.
    Type: Application
    Filed: March 18, 2016
    Publication date: September 22, 2016
    Inventors: Andrew P. Crew, Craig M. Crews, Xin Chen, Hanqing Dong, Caterina Ferraro, Yimin Qian, Kam Siu, Jing Wang, Meizhong Jin, Michael Berlin, Kurt Zimmermann, Lawrence Snyder
  • Publication number: 20160214972
    Abstract: The present invention relates to bifunctional compounds, which find utility to degrade and (inhibit) Androgen Receptor. In particular, the present invention is directed to compounds, which contain on one end a VHL ligand which binds to the ubiquitin ligase and on the other end a moiety which binds Androgen Receptor such that Androgen Receptor is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of Androgen Receptor. The present invention exhibits a broad range of pharmacological activities associated with compounds according to the present invention, consistent with the degradation/inhibition of Androgen Receptor.
    Type: Application
    Filed: January 20, 2016
    Publication date: July 28, 2016
    Inventors: Meizhong Jin, Andrew P. Crew, Hanqing Dong, Jing Wang, Kam Siu, Caterina Ferraro, Xin Chen, Yimin Qian
  • Publication number: 20160058872
    Abstract: The description relates to imide-based compounds, including bifunctional compounds comprising the same, which find utility as modulators of targeted ubiquitination, especially inhibitors of a variety of polypeptides and other proteins which are degraded and/or otherwise inhibited by bifunctional compounds according to the present invention. In particular, the description provides compounds, which contain on one end a ligand which binds to the cereblon E3 ubiquitin ligase and on the other end a moiety which binds a target protein such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of that protein. Compounds can be synthesized that exhibit a broad range of pharmacological activities consistent with the degradation/inhibition of targeted polypeptides of nearly any type.
    Type: Application
    Filed: July 6, 2015
    Publication date: March 3, 2016
    Inventors: Andrew P. Crew, Craig Crews, Hanqing Dong, Jing Wang, Yimin Qian, Kam Siu, Meizhong Jin
  • Publication number: 20150291562
    Abstract: The description relates to imide-based compounds, including bifunctional compounds comprising the same, which find utility as modulators of targeted ubiquitination, especially inhibitors of a variety of polypeptides and other proteins which are degraded and/or otherwise inhibited by bifunctional compounds according to the present invention. In particular, the description provides compounds, which contain on one end a ligand which binds to the cereblon E3 ubiquitin ligase and on the other end a moiety which binds a target protein such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of that protein. Compounds can be synthesized that exhibit a broad range of pharmacological activities consistent with the degradation/inhibition of targeted polypeptides of nearly any type.
    Type: Application
    Filed: April 14, 2015
    Publication date: October 15, 2015
    Inventors: Andrew P. Crew, Craig Crews, Hanqing Dong, Jing Wang, Yimin Qian, Kam Siu, Caterina Ferraro, Meizhong Jin, Xin Chen
  • Publication number: 20070112005
    Abstract: Compounds represented by Formula (I) or a pharmaceutically acceptable salt thereof, are inhibitors of mTOR and useful in the treatment of cancer.
    Type: Application
    Filed: November 15, 2006
    Publication date: May 17, 2007
    Inventors: Xin Chen, Heather Coate, Andrew Crew, Han-Qing Dong, Ayako Honda, Mark Mulvihill, Paula Tavares, Jing Wang, Douglas Werner, Kristen Mulvihill, Kam Siu, Bijoy Panicker, Apoorba Bharadwaj, Lee Arnold, Meizhong Jin, Brian Volk, Qinghua Weng, James Beard
  • Patent number: 5828693
    Abstract: An apparatus for sourcing an interrogation signal for use in a object identification system including a frequency hopping source for generation of an interrogation signal which is coupled to a homo dyne radio for transmission by a bi-directional antenna to a tag. Upon receipt, the tag provides a return signal that is backscatter modulated to include tag identification or other data which is processed by the sourcing system. The frequency hopping source includes a voltage controller oscillator which is driven by a pseudo random code generator for selecting one of a plurality of hopping frequencies at which the interrogation signal is to be generated based on the available bandwidth.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: October 27, 1998
    Assignee: Amtech Corporation
    Inventors: Wesley M. Mays, Aaron J. Kam Siu, Mike D. Fontanarosa