Patents by Inventor Leonard A Levin

Leonard A Levin 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: 8415327
    Abstract: Methods and compositions involving a class of boron-protected phenylphosphine agents having increased cell permeability and having improved chemical stability for treating or for preventing cell death-related diseases or conditions in a human or a non-human animal.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: April 9, 2013
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Leonard A. Levin, Yun Luo
  • Publication number: 20110195931
    Abstract: Methods and compositions involving a class of boron-protected phenylphosphine agents having increased cell permeability and having improved chemical stability for treating or for preventing neuronal cell death-related diseases or conditions in a human or a non-human animal.
    Type: Application
    Filed: March 18, 2011
    Publication date: August 11, 2011
    Applicant: WISCONSIN ALUMNI RESEARCH FOUNDATION
    Inventors: RONALD T. RAINES, Leonard A. Levin
  • Patent number: 7932239
    Abstract: Methods and compositions involving a class of boron-protected phenylphosphine agents having increased cell permeability and having improved chemical stability for treating or for preventing neuronal cell death-related diseases or conditions in a human or a non-human animal.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: April 26, 2011
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Ronald T. Raines, Leonard A. Levin
  • Patent number: 7867576
    Abstract: A method for monitoring the quality of a pattern of fluid beads applied to a moving substrate measures time delays between the passage of a reference point on a substrate element and leading and trailing edges of a bead, the quality of which is to be measured. A time delay ratio is generated, and compared to a reference ratio. The result of the comparison is indicative of variations in the quality of the measured bead. The invention has utility in a variety of industries, including industries in which adhesive beads are applied to a substrate, such as the envelope and box industries. An apparatus in accordance with the invention may conveniently utilize non-contact sensors to monitor the passage of the substrate and beads, and further may advantageously monitor the leading edge of the substrate and leading and trailing edges of the beads.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: January 11, 2011
    Inventors: Leonard Levin, Sophia Levin
  • Publication number: 20100256093
    Abstract: Methods and compositions involving a class of boron-protected phenylphosphine agents having increased cell permeability and having improved chemical stability for treating or for preventing cell death-related diseases or conditions in a human or a non-human animal.
    Type: Application
    Filed: February 22, 2010
    Publication date: October 7, 2010
    Inventors: LEONARD LEVIN, Yun Luo
  • Publication number: 20080081350
    Abstract: In vitro-differentiated retinal ganglion cells can be produced by exposing a mammalian retinal ganglion cell line to a protein kinase inhibitor. The differentiated retinal ganglion cells can be used to identify agents that protect retinal ganglion cells in vivo or in vitro from cell injury (including cell death) and agents that affect retinal ganglion cell ion channel activity.
    Type: Application
    Filed: December 3, 2007
    Publication date: April 3, 2008
    Inventor: Leonard Levin
  • Patent number: 7303915
    Abstract: In vitro-differentiated retinal ganglion cells can be produced by exposing a mammalian retinal ganglion cell line to a protein kinase inhibitor. The differentiated retinal ganglion cells can be used to identify agents that protect retinal ganglion cells in vivo or in vitro from cell injury (including cell death) and agents that affect retinal ganglion cell ion channel activity.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: December 4, 2007
    Assignee: Wisconsin Alumni Research Foundation
    Inventor: Leonard A. Levin
  • Publication number: 20070026133
    Abstract: A method for monitoring the quality of a pattern of fluid beads applied to a moving substrate measures time delays between the passage of a reference point on a substrate element and leading and trailing edges of a bead, the quality of which is to be measured. A time delay ratio is generated, and compared to a reference ratio. The result of the comparison is indicative of variations in the quality of the measured bead. The invention has utility in a variety of industries, including industries in which adhesive beads are applied to a substrate, such as the envelope and box industries. An apparatus in accordance with the invention may conveniently utilize non-contact sensors to monitor the passage of the substrate and beads, and further may advantageously monitor the leading edge of the substrate and leading and trailing edges of the beads.
    Type: Application
    Filed: August 1, 2005
    Publication date: February 1, 2007
    Inventors: Leonard Levin, Sophia Levin
  • Publication number: 20060258622
    Abstract: Methods and compositions involving a class of boron-protected phenylphosphine agents having increased cell permeability and having improved chemical stability for treating or for preventing neuronal cell death-related diseases or conditions in a human or a non-human animal.
    Type: Application
    Filed: April 27, 2006
    Publication date: November 16, 2006
    Inventors: Ronald Raines, Leonard Levin
  • Publication number: 20060189562
    Abstract: In vitro-differentiated retinal ganglion cells can be produced by exposing a mammalian retinal ganglion cell line to a protein kinase inhibitor. The differentiated retinal ganglion cells can be used to identify agents that protect retinal ganglion cells in vivo or in vitro from cell injury (including cell death) and agents that affect retinal ganglion cell ion channel activity.
    Type: Application
    Filed: February 24, 2006
    Publication date: August 24, 2006
    Inventor: Leonard Levin
  • Patent number: 6291506
    Abstract: Disclosed is a method of reducing intraocular pressure or retinal ganglion cell death caused by specific reactive oxygen species by delivering carvedilol or a derivative or metabolite thereof having beta-adrenergic antagonist activity or specific reactive oxygen species scavenging activity to the retinal ganglion cells of a subject having or at risk of developing glaucomatous or other optic neuropathy.
    Type: Grant
    Filed: August 3, 1999
    Date of Patent: September 18, 2001
    Assignee: Wisconsin Alumni Research Foundation
    Inventor: Leonard A Levin