Patents by Inventor Abhay Singh

Abhay Singh 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: 7985424
    Abstract: Dendritic polymers with enhanced amplification and interior functionality are disclosed. These dendritic polymers are made by use of fast, reactive ring-opening chemistry (or other fast reactions) combined with the use of branch cell reagents in a controlled way to rapidly and precisely build dendritic structures, generation by generation, with cleaner chemistry, often single products, lower excesses of reagents, lower levels of dilution, higher capacity method, more easily scaled to commercial dimensions, new ranges of materials, and lower cost. The dendritic compositions prepared have novel internal functionality, greater stability (e.g., thermal stability and less or no reverse Michael's reaction), and reach encapsulation surface densities at lower generations. Unexpectedly, these reactions of polyfunctional branch cell reagents with polyfunctional cores do not create cross-linked materials.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: July 26, 2011
    Assignee: Dendritic Nanotechnologies Inc.
    Inventors: Donald A. Tomalia, Douglas R. Swanson, Baohua Huang, Veera Reddy Pulgam, Joseph R. Heinzelmann, Sonke Svenson, Lori A. Reyna, Michael A. Zhuravel, Abhay Singh Chauhan, Cordell R. DeMattei
  • Publication number: 20090324742
    Abstract: The present invention concerns poly(etherhydroxylamine) PEHAM dendritic polymers wherein they function as excipients for the enhancement of water solubility of poorly water soluble (hydrophobic) Active Materials or enhancement of oil solubility of poorly oil soluble (hydrophilic) Active Materials. These dendritic polymers can have Active Materials associated with them by one or more of the following: (a) by adsorption onto the surface or (b) encapsulation into the interior of the dendritic polymers or (c) a mixture of both where these interactions are driven by one or more of the following (i) electrostatic attraction, (ii) hydrogen bonding between dendritic polymers and Active Material and (iii) hydrophobic or hydrophilic interactions or mixtures of these interactions. Additionally, these associated Active Materials can be associated with dendritic polymers through chemical bonding to the surface or to internal functionalities (IF) of PEHAM dendritic polymers or both.
    Type: Application
    Filed: September 7, 2007
    Publication date: December 31, 2009
    Inventors: Sonke Svenson, Abhay Singh Chauhan
  • Patent number: 6989160
    Abstract: A therapeutic or an edible composition comprising at least three of the five herbs selected from Prunus amygdales, Ocimum sanctum, Azadirachta indica, Aegle marelose and Vitus vinefera, is provided for the treatment of hyperglycemia, especially for non-insulin dependent diabetic subjects, and the herbal composition has significantly reduced the blood glucose levels in both diabetic and non-diabetic experimental subjects having elevated blood glucose levels.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: January 24, 2006
    Assignee: Council of Scientific and Industrial Research
    Inventors: Abhay Singh Chauhan, Kishore Babu Chalasani, Sridevi Surapanini, Sharath Kumar Yandrapu, Rajasekhar Kataram, Govardhana Maroju Chary, Prakash Vamanrao Diwan, Kondapuram Vijaya Raghavan
  • Publication number: 20030180399
    Abstract: A therapeutic or an edible composition comprising at least three of the five herbs selected from Prunus amygdales, Ocimum sanctum, Azadirachta indica, Aegle marelose and Vitus vinefera, is provided for the treatment of hyperglycemia, especially for non-insulin dependent diabetic subjects, and the herbal composition has significantly reduced the blood glucose levels in both diabetic and non-diabetic experimental subjects having elevated blood glucose levels.
    Type: Application
    Filed: March 19, 2002
    Publication date: September 25, 2003
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Abhay Singh Chauhan, Kishore Babu Chalasani, Sridevi Surapanini, Sharath Kumar Yandrapu, Rajasekhar Kataram, Govardhana Maroju Chary, Prakash Vamanrao Diwan, Kondapuram Vijaya Raghavan
  • Publication number: 20030180250
    Abstract: A composition exhibiting anti-inflammatory activity comprising of a momodisperse macromolecular polymers such as dendrimer having a plurality of terminal groups or such molecules bound/complexed to drug moieties having anti-inflammatory activity or which assist in anti-inflammatory activity and its use in the pharmaceutical formulation for treating disease or pathological conditions associated with inflammation.
    Type: Application
    Filed: March 22, 2002
    Publication date: September 25, 2003
    Applicant: Council of Scientific and Industrial Research
    Inventors: Abhay Singh Chauhan, Prakash Vamanrao Diwan, Narendra Kumar Jain, Kondapuram Vijaya Raghavan