Patents by Inventor Hagit Cohen

Hagit Cohen 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).

  • Microspheres containing condensed polyanionic bioactive agents and methods for their production
    Patent number: 6814980
    Abstract: The present invention relates to novel compositions comprising microspheres and/or nanospheres containing condensed polyanionic bioactive agents, such as DNA. The polyanionic bioactive agent in the microspheres and/or nanospheres is preferably condensed using a polycationic condensing agent, such as poly-L-lysine. The present invention further relates to methods for producing the microspheres and/or nanospheres containing condensed polyanionic bioactive agents.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: November 9, 2004
    Assignee: The Regents of the University of Michigan
    Inventors: Robert J. Levy, Vinod Labhasetwar, Hagit Cohen
  • Microspheres containing condensed polyanionic bioactive agents and methods for their production
    Publication number: 20020146459
    Abstract: The present invention relates to novel compositions comprising microspheres and/or nanospheres containing condensed polyanionic bioactive agents, such as DNA. The polyanionic bioactive agent in the microspheres and/or nanospheres is preferably condensed using a polycationic condensing agent, such as poly-L-lysine. The present invention further relates to methods for producing the microspheres and/or nanospheres containing condensed polyanionic bioactive agents.
    Type: Application
    Filed: April 4, 2002
    Publication date: October 10, 2002
    Applicant: The Regents of the University of Michigan
    Inventors: Robert J. Levy, Vinod D. Labhasetwar, Hagit Cohen
  • Microspheres containing condensed polyanionic bioactive agents and methods for their production
    Patent number: 6395253
    Abstract: The invention describes improved methods for incorporating nucleic acids into polymeric microspheres and/or nanospheres through the use of a condensing agent.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: May 28, 2002
    Assignee: The Regents of the University of Michigan
    Inventors: Robert J. Levy, Vinod Labhasetwar, Hagit Cohen
  • MICROSPHERES CONTAINING CONDENSED POLYANIONIC BIOACTIVE AGENTS AND METHODS FOR THEIR PRODUCTION
    Publication number: 20020012652
    Abstract: The present invention relates to novel compositions comprising microspheres and/or nanospheres containing condensed polyanionic bioactive agents, such as DNA. The polyanionic bioactive agent in the microspheres and/or nanospheres is preferably condensed using a polycationic condensing agent, such as poly-L-lysine. The present invention further relates to methods for producing the microspheres and/or nanospheres containing condensed polyanionic bioactive agents.
    Type: Application
    Filed: April 23, 1998
    Publication date: January 31, 2002
    Inventors: ROBERT J. LEVY, VINOD LABHASETWAR, HAGIT COHEN