Patents by Inventor Prafulla Chandra

Prafulla Chandra 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).

  • Controlled releases of actives in skin
    Patent number: 8414871
    Abstract: Topical compositions are provided in which active compounds for topical delivery through the stratum corneum are complexed with nanospheres of a triblock copolymer having an A-B-A structure wherein each A end block is a water-soluble, hydrophilic and non-toxic polymer or oligomer; and the hydrophobic middle B block is a hydrophobic polymer or oligomer with the same or different repeating units having the structure according to formula:(I) wherein X is —C—R—C— or —C—; Z is between 2 and about 100, inclusive; R1 is CH?CH or (CH2), wherein n is from 0 to 18, inclusive; R2 is selected from hydrogen and straight and branched alkyl, alkoxy, alkylaryl and alkoxyaryl groups containing up to 18 carbon atoms; and R is selected from a bond or straight and branched alkyl, alkoxy, alkylaryl and alkoxyaryl groups containing up to 18 carbon atoms.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: April 9, 2013
    Assignee: Rutgers, The State University of New Jersey
    Inventors: Joachim Kohn, Bozena Michniak, David Devore, Larisa Sheihet, Prafulla Chandra, Priya Batheja
  • Conducting copolymer ferromagnetic composite and a process for the preparation thereof
    Patent number: 8277690
    Abstract: The present invention provides a conducting copolymer ferromagnetic composite. Particularly, the present invention relates to a conducting copolymer of aniline and ethylene-dioxy thiophene containing ferrite particles. The present invention also provides insitu polymerization of aniline and ethylene-dioxy thiophene in the presence of ferrite particles and suitable surfactant medium. This conducting copolymer ferromagnetic composite can be used for the dissipation of electrostatic charge, for the shielding of electromagnetic interference and as absorbing of electromagnetic waves in the microwave region.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: October 2, 2012
    Assignee: Council of Scientific & Industrial Research
    Inventors: Sundeep Kumar Dhawan, Kuldeep Singh, Nikhil Sobti, Anil Ohlan, Parveen Saini, Beena Gupta, Rajendra Prasad Pant, Ravinder Kumar Kotnala, Kishan Hari, Prafulla Chandra Kothari
  • CONTROLLED RELEASES OF ACTIVES IN SKIN
    Publication number: 20090317472
    Abstract: Topical compositions are provided in which active compounds for topical delivery through the stratum corneum are complexed with nanospheres of a triblock copolymer having an A-B-A structure wherein each A end block is a water-soluble, hydrophilic and non-toxic polymer or oligomer; and the hydrophobic middle B block is a hydrophobic polymer or oligomer with the same or different repeating units having the structure according to formula:(I) wherein X is —C —R—C— or —C—; Z is between 2 and about 100, inclusive; R1 is CH?CH or (CH2), wherein n is from 0 to 18, inclusive; R2 is selected from hydrogen and straight and branched alkyl, alkoxy, alkylaryl and alkoxyaryl groups containing up to 18 carbon atoms; and R is selected from a bond or straight and branched alkyl, alkoxy, alkylaryl and alkoxyaryl groups containing up to 18 carbon atoms.
    Type: Application
    Filed: January 31, 2008
    Publication date: December 24, 2009
    Applicant: Rutgers, The State University of New Jersey
    Inventors: Joachim B. Kohn, Bozena Michniak, David Devore, Larisa Sheihet, Prafulla Chandra, Priya Batheja
  • CONDUCTING COPOLYMER FERROMAGNETIC COMPOSITE AND A PROCESS FOR THE PREPARATION THEREOF
    Publication number: 20090302263
    Abstract: The present invention provides a conducting copolymer ferromagnetic composite. Particularly, the present invention relates to a conducting copolymer of aniline and ethylene-dioxy thiophene containing ferrite particles. The present invention also provides insitu polymerization of aniline and ethylene-dioxy thiophene in the presence of ferrite particles and suitable surfactant medium. This conducting copolymer ferromagnetic composite can be used for the dissipation of electrostatic charge, for the shielding of electromagnetic interference and as absorbing of electromagnetic waves in the microwave region.
    Type: Application
    Filed: May 4, 2009
    Publication date: December 10, 2009
    Applicant: Council of Scientific & Industrial Research
    Inventors: Sundeep Kumar Dhawan, Kuldeep Singh, Nikhil Sobti, Anil Ohlan, Parveen Saini, Beena Gupta, Rajendra Prasad Pant, Ravinder Kumar Kotnala, Kishan Hari, Prafulla Chandra Kothari