Patents by Inventor Daniel Yohannes

Daniel Yohannes 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: 10283694
    Abstract: A method for increasing the integration level of superconducting electronic circuits, comprising fabricating a series of planarized electrically conductive layers patterned into wiring, separated by planarized insulating layers, with vias communicating between the conductive layers. Contrary to the standard sequence of patterning from the bottom up, the pattern of vias in at least one insulating layer is formed prior to the pattern of wiring in the underlying conductive layer. This enables a reduction in the number of planarization steps, leading to a fabrication process which is faster and more reliable. In a preferred embodiment, the superconductor is niobium and the insulator is silicon dioxide. This method can provide 10 or more wiring layers in a complex integrated circuit, and is compatible with non-planarized circuits placed above the planarized wiring layers.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: May 7, 2019
    Assignee: Hypres, Inc.
    Inventors: Daniel Yohannes, Alexander F. Kirichenko, John Vivalda, Richard Hunt
  • Patent number: 10258582
    Abstract: The present invention relates to compounds that modulate nicotinic receptors as non-competitive antagonists, methods for their synthesis, methods for use, and their pharmaceutical compositions.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: April 16, 2019
    Assignee: Catalyst BioSciences, Inc.
    Inventors: Srinivasa Rao Akireddy, Balwinder Singh Bhatti, Ronald Joseph Heemstra, Jason Speake, Daniel Yohannes, Matt S. Melvin, Yunde Xiao
  • Publication number: 20180271806
    Abstract: The present invention relates to compounds that modulate nicotinic receptors as non-competitive antagonists, methods for their synthesis, methods for use, and their pharmaceutical compositions.
    Type: Application
    Filed: January 23, 2018
    Publication date: September 27, 2018
    Inventors: Srinivasa Rao Akireddy, Balwinder Singh Bhatti, Ronald Joseph Heemstra, Jason Speake, Daniel Yohannes, Matt S. Melvin, Yunde Xiao
  • Publication number: 20180002275
    Abstract: Provided herein are compounds of Formula (I), Formula (II), and Formula (III), and compositions comprising the same, as well as methods of use thereof for controlling or inhibiting the formation of calcium oxalate kidney stones, inhibiting the production of glyoxylate and/or oxalate, and/or inhibiting hydroxyproline dehydrogenase (HYPDH).
    Type: Application
    Filed: January 25, 2016
    Publication date: January 4, 2018
    Inventors: W. Todd Lowther, Ross P. Holmes, Daniel Yohannes
  • Publication number: 20170345990
    Abstract: A method for increasing the integration level of superconducting electronic circuits, comprising fabricating a series of planarized electrically conductive layers patterned into wiring, separated by planarized insulating layers, with vias communicating between the conductive layers. Contrary to the standard sequence of patterning from the bottom up, the pattern of vias in at least one insulating layer is formed prior to the pattern of wiring in the underlying conductive layer. This enables a reduction in the number of planarization steps, leading to a fabrication process which is faster and more reliable. In a preferred embodiment, the superconductor is niobium and the insulator is silicon dioxide. This method can provide 10 or more wiring layers in a complex integrated circuit, and is compatible with non-planarized circuits placed above the planarized wiring layers.
    Type: Application
    Filed: August 17, 2017
    Publication date: November 30, 2017
    Inventors: Daniel Yohannes, Alexander F. Kirichenko, John Vivalda, Richard Hunt
  • Patent number: 9741920
    Abstract: Superconducting integrated circuits require several wiring layers to distribute bias and signals across the circuit, which must cross each other both with and without contacts. All wiring lines and contacts must be fully superconducting, and in the prior art each wiring layer comprises a single metallic thin film. An alternative wiring layer is disclosed that comprises sequential layers of two or more different metals. Such a multi-metallic wiring layer may offer improved resistance to impurity diffusion, better surface passivation, and/or reduction of stress, beyond that which is attainable with a single-metallic wiring layer. The resulting process leads to improved margin and yield in an integrated circuit comprising a plurality of Josephson junctions. Several preferred embodiments are disclosed, for both planarized and non-planarized processes.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: August 22, 2017
    Assignee: Hypres, Inc.
    Inventors: Sergey K. Tolpygo, Denis Amparo, Richard Hunt, John Vivalda, Daniel Yohannes
  • Patent number: 9741918
    Abstract: A method for increasing the integration level of superconducting electronic circuits, comprising fabricating a series of planarized electrically conductive layers patterned into wiring, separated by planarized insulating layers, with vias communicating between the conductive layers. Contrary to the standard sequence of patterning from the bottom up, the pattern of vias in at least one insulating layer is formed prior to the pattern of wiring in the underlying conductive layer. This enables a reduction in the number of planarization steps, leading to a fabrication process which is faster and more reliable. In a preferred embodiment, the superconductor is niobium and the insulator is silicon dioxide. This method can provide 10 or more wiring layers in a complex integrated circuit, and is compatible with non-planarized circuits placed above the planarized wiring layers.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: August 22, 2017
    Assignee: Hypres, Inc.
    Inventors: Daniel Yohannes, Alexander F. Kirichenko, John Vivalda, Richard Hunt
  • Publication number: 20170119746
    Abstract: The present invention relates to compounds that bind to and modulate the activity of neuronal nicotinic acetylcholine receptors, to processes for preparing these compounds, to pharmaceutical compositions containing these compounds, and to methods of using these compounds for treating a wide variety of conditions and disorders, including those associated with dysfunction of the central nervous system (CNS).
    Type: Application
    Filed: September 28, 2015
    Publication date: May 4, 2017
    Inventors: Merouane Bencherif, Nikolai Federov, Terry Hauser, Kristen G. Jordan, Sharon Rae Letchworth, Anatoly Mazurov, Julio A. Munoz, Jason Speake, Daniel Yohannes
  • Publication number: 20170071878
    Abstract: The present invention relates to compounds that modulate nicotinic receptors as non-competitive antagonists, methods for their synthesis, methods for use, and their pharmaceutical compositions.
    Type: Application
    Filed: November 23, 2016
    Publication date: March 16, 2017
    Inventors: Srinivasa Rao Akireddy, Balwinder Singh Bhatti, Ronald Joseph Heemstra, Jason Speake, Daniel Yohannes, Matt S. Melvin, Yunde Xiao
  • Patent number: 9532974
    Abstract: The present invention relates to compounds that modulate nicotinic receptors as non-competitive antagonists, methods for their synthesis, methods for use, and their pharmaceutical compositions.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: January 3, 2017
    Assignee: Targacept, Inc.
    Inventors: Srinivasa Rao Akireddy, Balwinder Singh Bhatti, Ronald Joseph Heemstra, Matt S. Melvin, Jason Speake, Yunde Xiao, Daniel Yohannes
  • Publication number: 20160008323
    Abstract: The present invention relates to compounds that modulate nicotinic receptors as non-competitive antagonists, methods for their synthesis, methods for use, and their pharmaceutical compositions.
    Type: Application
    Filed: August 27, 2015
    Publication date: January 14, 2016
    Inventors: Srinivasa Rao Akireddy, Balwinder Singh Bhatti, Ronald Joseph Heemstra, Matt S. Melvin, Jason Speake, Yunde Xiao, Daniel Yohannes
  • Patent number: 9173876
    Abstract: The present invention relates to compounds that bind to and modulate the activity of neuronal nicotinic acetylcholine receptors, to processes for preparing these compounds, to pharmaceutical compositions containing these compounds, and to methods of using these compounds for treating a wide variety of conditions and disorders, including those associated with dysfunction of the central nervous system (CNS).
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: November 3, 2015
    Inventors: Merouane Bencherif, Nikolai Federov, Terry Hauser, Kristen G. Jordan, Sharon Rae Letchworth, Anatoly Mazurov, Julio A. Munoz, Jason Speake, Daniel Yohannes
  • Patent number: 9130116
    Abstract: Superconducting integrated circuits require several wiring layers to distribute bias and signals across the circuit, which must cross each other both with and without contacts. All wiring lines and contacts must be fully superconducting, and in the prior art each wiring layer comprises a single metallic thin film. An alternative wiring layer is disclosed that comprises sequential layers of two or more different metals. Such a multi-metallic wiring layer may offer improved resistance to impurity diffusion, better surface passivation, and/or reduction of stress, beyond that which is attainable with a single-metallic wiring layer. The resulting process leads to improved margin and yield in an integrated circuit comprising a plurality of Josephson junctions. Several preferred embodiments are disclosed, for both planarized and non-planarized processes.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: September 8, 2015
    Assignee: Hypres Inc.
    Inventors: Sergey K. Tolpygo, Denis Amparo, Richard Hunt, John Vivalda, Daniel Yohannes
  • Publication number: 20150119253
    Abstract: A method for increasing the integration level of superconducting electronic circuits, comprising fabricating a series of planarized electrically conductive layers patterned into wiring, separated by planarized insulating layers, with vias communicating between the conductive layers. Contrary to the standard sequence of patterning from the bottom up, the pattern of vias in at least one insulating layer is formed prior to the pattern of wiring in the underlying conductive layer. This enables a reduction in the number of planarization steps, leading to a fabrication process which is faster and more reliable. In a preferred embodiment, the superconductor is niobium and the insulator is silicon dioxide. This method can provide 10 or more wiring layers in a complex integrated circuit, and is compatible with non-planarized circuits placed above the planarized wiring layers.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 30, 2015
    Inventors: Daniel Yohannes, Alexander F. Kirichenko, John Vivalda, Richard Hunt
  • Publication number: 20150105421
    Abstract: The present invention relates to compounds that bind to and modulate the activity of neuronal nicotinic acetylcholine receptors, to processes for preparing these compounds, to pharmaceutical compositions containing these compounds, and to methods of using these compounds for treating a wide variety of conditions and disorders, including those associated with dysfunction of the central nervous system (CNS).
    Type: Application
    Filed: October 20, 2014
    Publication date: April 16, 2015
    Inventors: Merouane Bencherif, Nikolai Federov, Terry Hauser, Kristen G. Jordan, Sharon Rae Letchworth, Anatoly Mazurov, Julio A. Munoz, Jason Speake, Daniel Yohannes
  • Publication number: 20150031675
    Abstract: The present invention relates to compounds that bind to and modulate the activity of neuronal nicotinic acetylcholine receptors, to processes for preparing these compounds, to pharmaceutical compositions containing these compounds, and to methods of using these compounds for treating a wide variety of conditions and disorders, including those associated with dysfunction of the central nervous system (CNS).
    Type: Application
    Filed: January 31, 2013
    Publication date: January 29, 2015
    Inventors: Jon-Paul Strachan, Daniel Yohannes
  • Patent number: 8901151
    Abstract: The present invention relates to compounds that bind to and modulate the activity of neuronal nicotinic acetylcholine receptors, to processes for preparing these compounds, to pharmaceutical compositions containing these compounds, and to methods of using these compounds for treating a wide variety of conditions and disorders, including those associated with dysfunction of the central nervous system (CNS).
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: December 2, 2014
    Assignee: Targacept, Inc.
    Inventors: Merouane Bencherif, Nikolai Fedorov, Terry Hauser, Kristen Jordan, Sharon Rae Letchworth, Anatoly Mazurov, Julio A. Munoz, Jason Speake, Daniel Yohannes
  • Publication number: 20140315877
    Abstract: The present invention relates to compounds that modulate nicotinic receptors as non-competitive antagonists, methods for their synthesis, methods for use, and their pharmaceutical compositions.
    Type: Application
    Filed: July 1, 2014
    Publication date: October 23, 2014
    Inventors: Srinivasa Rao Akireddy, Balwinder Singh Bhatti, Ronald Joseph Heemstra, Matt S. Melvin, Jason Speake, Yunde Xiao, Daniel Yohannes
  • Publication number: 20140288185
    Abstract: The present invention relates to compounds that modulate nicotinic receptors as non-competitive antagonists, methods for their synthesis, methods for use, and their pharmaceutical compositions.
    Type: Application
    Filed: November 1, 2012
    Publication date: September 25, 2014
    Inventors: Srinivasa Rao Akireddy, Jason Speake, Balwinder Singh Bhatti, Daniel Yohannes, John Genus, Yunde Xiao
  • Publication number: 20140288169
    Abstract: The present invention relates to compounds that modulate nicotinic receptors as non-competitive antagonists, methods for their synthesis, methods for their use, and their pharmaceutical compositions.
    Type: Application
    Filed: January 5, 2012
    Publication date: September 25, 2014
    Applicant: TARGACEPT, INC.
    Inventors: Srinivasa Rao Akireddy, Scott R. Breining, Matt S. Melvin, Srinivasa V. Murthy, Anatoly A. Mazurov, Balwinder Singh Bhatti, Jon-Paul Strachan, Ronald Joseph Heemstra, Todd Showalter, Yunde Xiao, Philip S. Hammond, Lan Miao, David Kombo, Daniel Yohannes, Jason Speake