Patents by Inventor Prasanta Kumar Das

Prasanta Kumar Das 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).

  • Process for synthesis of novel cationic amphiphiles containing N-hydroxyalkyl group for intracellular delivery of biologically active molecules
    Patent number: 6541649
    Abstract: The present invention provides processes for the synthesis of novel cationic amphiphiles capable of facilitating transport of biologically active molecules into cells wherein the said amphiphiles contain N-hydroxyalkyl group and have at least one hydroxyalkyl group containing 1-3 carbon atoms directly linked to the positively charged nitrogen atom.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: April 1, 2003
    Assignee: Council of Scientific & Industrial Research
    Inventors: Rajkumar Banerjee, Prasanta Kumar Das, Gollapudi Venkata Srilakshmi, Nalam Madhusudhana Rao, Arabinda Chaudhuri
  • Cationic amphiphiles containing N-hydroxyalkyl group for intracellular delivery of biologically active molecules
    Patent number: 6503945
    Abstract: The present invention provides novel cationic amphiphiles containing novel N-hydroxyalkyl group and therapeutic formulations containing the said amphiphiles that are capable of facilitating transport of biologically active molecules into cells.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: January 7, 2003
    Assignee: Council of Scientific & Industrial Research
    Inventors: Rajkumar Banerjee, Prasanta Kumar Das, Gollapudi Venkata Srilakshmi, Nalam Madhusudhana Rao, Arabinda Chaudhuri
  • Novel cationic amphiphiles containing N-hydroxyalkyl group for intracellular delivery of biologically active molecules
    Publication number: 20020077366
    Abstract: The present invention provides novel cationic amphiphiles containing novel N-hydroxyalkyl group and therapeutic formulations containing the said amphiphiles that are capable of facilitating transport of biologically active molecules into cells.
    Type: Application
    Filed: January 11, 2002
    Publication date: June 20, 2002
    Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
    Inventors: Rajkumar Banerjee, Prasanta Kumar Das, Gollapudi Venkata Srilakshmi, Nalam Madhusudhana Rao, Arabinda Chaudhuri
  • Process for synthesis of novel cationic amphiphiles containing N-hydroxyalkyl group for intracellular delivery of biologically active molecules
    Publication number: 20020062044
    Abstract: The present invention provides processes for the synthesis of novel cationic amphiphiles capable of facilitating transport of biologically active molecules into cells wherein the said amphiphiles contain N-hydroxyalkyl group and have at least one hydroxyalkyl group containing 1-3 carbon atoms directly linked to the positively charged nitrogen atom
    Type: Application
    Filed: December 4, 2001
    Publication date: May 23, 2002
    Applicant: Council of Scientific & Industrial Research
    Inventors: Rajkumar Banerjee, Prasanta Kumar Das, Gollapudi Venkata Srilakshmi, Nalam Madhusudhana Rao, Arabinda Chaudhuri
  • Cationic amphiphiles containing N-hydroxyalkyl group for intracellular delivery of biologically active molecules
    Patent number: 6346516
    Abstract: The present invention provides novel cationic amphiphiles containing novel N-hydroxyalkyl group and therapeutic formulations containing the said amphiphiles that are capable of facilitating transport of biologically active molecules into cells.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: February 12, 2002
    Assignee: Council of Scientific & Industrial Research
    Inventors: Rajkumar Banerjee, Prasanta Kumar Das, Gollapudi Venkata Srilakshmi, Nalam Madhusudhana Rao, Arabinda Chaudhuri
  • Process for synthesis of novel cationic amphiphiles containing N-hydroxyalkl group for intracellular delivery of biologically active molecules
    Patent number: 6333433
    Abstract: The present invention provides processes for the synthesis of novel cationic amphiphiles capable of facilitating transport of biologically active molecules into cells wherein the said amphiphiles contain N-hydroxyalkyl group and have at least one hydroxyalkyl group containing 1-3 carbon atoms directly linked to the positively charged nitrogen atom.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: December 25, 2001
    Assignee: Council of Scientific Industrial Research
    Inventors: Rajkumar Banerjee, Prasanta Kumar Das, Gollapudi Venkata Srilakshmi, Nalam Madhusudhana Rao, Arabinda Chaudhuri