Patents by Inventor Rangaramanujam M. Kannan

Rangaramanujam M. Kannan 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: 20150141350
    Abstract: A nanodevice composition including N-acetyl cysteine linked to a dendrimer, such as a PAMAM dendrimer or a multiarm PEG polymer, is provided. Also provided is a nanodevice for targeted delivery of a compound to a location in need of treatment. The nanodevice includes a PAMAM dendrimer or multiarm PEG polymer, linked to the compound via a disulfide bond. There is provided a nanodevice composition for localizing and delivering therapeutically active agents, the nanodevice includes a PAMAM dendrimer or multiarm PEG polymer and at least one therapeutically active agent attached to the PAMAM dendrimer or multiarm PEG polymer.
    Type: Application
    Filed: September 4, 2014
    Publication date: May 21, 2015
    Inventors: Rangaramanujam M. Kannan, Sujatha Kannan, Roberto Romero, Raghavendra S. Navath, Hui Dai, Anupa R. Menjoge
  • Patent number: 8889101
    Abstract: A nanodevice composition including N-acetyl cysteine linked to a dendrimer, such as a PAMAM dendrimer or a multiarm PEG polymer, is provided. Also provided is a nanodevice for targeted delivery of a compound to a location in need of treatment. The nanodevice includes a PAMAM dendrimer or multiarm PEG polymer, linked to the compound via a disulfide bond. There is provided a nanodevice composition for localizing and delivering therapeutically active agents, the nanodevice includes a PAMAM dendrimer or multiarm PEG polymer and at least one therapeutically active agent attached to the PAMAM dendrimer or multiarm PEG polymer.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: November 18, 2014
    Assignee: Wayne State University
    Inventors: Rangaramanujam M. Kannan, Sujatha Kannan, Roberto Romero, Raghavendra S. Navath
  • Patent number: 8729171
    Abstract: A biodegradable nanocomposite and a method of forming a biodegradable nanocomposite are provided. In one aspect, the biodegradable nanocomposite includes a biodegradable polymer and a reinforcing agent substantially dispersed throughout the biodegradable polymer by rapid depressurization of a supercritical fluid. The biodegradable nanocomposite further includes a plurality of pores formed in the nanocomposite, the plurality of pores having an average pore size greater than about 100 ?m.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: May 20, 2014
    Assignees: Wayne State University, William Beaumont Hospital
    Inventors: Rangaramanujam M. Kannan, Kevin C. Baker, Robert Bellair, Mihai Manitiu, Harry Herkowitz
  • Publication number: 20130136697
    Abstract: The invention discloses injectable hydrogels which are in the form of crosslinked nano beads or particle in the size range 5 nm to 10 ?m, comprising PAMAM dendrimer with asymmetrical peripheral end groups such that one of the terminal groups is involved in formation of hydrogel and the other in involved in the conjugation of drugs or imaging agents and their methods of preparation. The said gel is formed by reaction of the PAMAM dendrimer with asymmetrical end groups with other polymer wherein the other polymer is selected from the group of linear, branched, hyperbranched or star shaped polymers with functionalized terminal groups. The PAMAM dendrimer with asymmetrical terminal groups consists of a Generation 2 and above PAMAM dendrimer with symmetrical end groups modified using the amino acids or their modified forms.
    Type: Application
    Filed: March 31, 2011
    Publication date: May 30, 2013
    Applicants: NATIONAL INSTITUTES OF HEALTH, WAYNE STATE UNIVERSITY
    Inventors: Rangaramanujam M. Kannan, Sujatha Kannan, Roberto Romero, Raghavendra Navath, Anupa Menjoge
  • Publication number: 20120003155
    Abstract: A nanodevice composition including N-acetyl cysteine linked to a dendrimer, such as a PAMAM dendrimer or a multiarm PEG polymer, is provided. Also provided is a nanodevice for targeted delivery of a compound to a location in need of treatment. The nanodevice includes a PAMAM dendrimer or multiarm PEG polymer, linked to the compound via a disulfide bond. There is provided a nanodevice composition for localizing and delivering therapeutically active agents, the nanodevice includes a PAMAM dendrimer or multiarm PEG polymer and at least one therapeutically active agent attached to the PAMAM dendrimer or multiarm PEG polymer.
    Type: Application
    Filed: June 10, 2010
    Publication date: January 5, 2012
    Applicants: NATIONAL INSTITUTES OF HEALTH, WAYNE STATE UNIVERSITY
    Inventors: Rangaramanujam M. Kannan, Sujatha Kannan, Roberto Romero, Raghavendra S. Navath, Hui Dai, Anupa R. Menjoge
  • Publication number: 20110288651
    Abstract: A biodegradable nanocomposite and a method of forming a biodegradable nanocomposite are provided. In one aspect, the biodegradable nanocomposite includes a biodegradable polymer and a reinforcing agent substantially dispersed throughout the biodegradable polymer by rapid depressurization of a supercritical fluid. The biodegradable nanocomposite further includes a plurality of pores formed in the nanocomposite, the plurality of pores having an average pore size greater than about 100 ?m.
    Type: Application
    Filed: January 20, 2011
    Publication date: November 24, 2011
    Inventors: Rangaramanujam M. Kannan, Kevin C. Baker, Robert Bellair, Mihai Manitiu, Harry Herkowitz
  • Publication number: 20110288223
    Abstract: A biodegradable film and a method of forming a biodegradable film are provided. In one aspect, the biodegradable film includes a reinforced biodegradable polymer including a biodegradable polymer and a reinforcing agent substantially dispersed throughout the biodegradable polymer by rapid depressurization of a supercritical fluid wherein the reinforced biodegradable polymer is formed into the film.
    Type: Application
    Filed: January 20, 2011
    Publication date: November 24, 2011
    Inventors: Rangaramanujam M. Kannan, Kevin C. Baker, Robert Bellair, Mihai Manitiu, Harry Herkowitz
  • Patent number: 5313320
    Abstract: A method for converting an opaque portion of a side-group liquid crystalline polymer body into a transparent portion. The method involves applying sufficient shear force to the polymer body for a sufficient time to convert the opaque portion into a transparent portion. The method provides for erasure of opaque optical pixels from data storage disks without requiring the use of electrical or magnetic fields.
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: May 17, 1994
    Assignee: California Institute of Technology
    Inventors: Julia A. Kornfield, Rangaramanujam M. Kannan, Norbert Schwenk