Patents by Inventor Rajagopalan Vijayaraghavan

Rajagopalan Vijayaraghavan 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: 20150126734
    Abstract: The present disclosure relates to a single pot process for preparation of a N,N-di substituted carboxamide compounds of formula (I), said process comprising: reacting a carboxylic acid with a di-substituted carbamoyl chloride in presence of an organic tertiary base to obtain the N,N-di substituted carboxamide compounds of formula (I). The process of the present disclosure involves a simple step, and it is energy and time saving process for preparation of N,N-di substituted carboxamides.
    Type: Application
    Filed: December 20, 2011
    Publication date: May 7, 2015
    Applicant: DIRECTOR GENERAL, DEFENCE RESEARCH & DEVELOPMENT ORGNISATION
    Inventors: Ambati Narasimha Rao, Kumaran Ganesan, Rajagopalan Vijayaraghavan
  • Patent number: 8785133
    Abstract: A process of detection of pandemic swine flu virus H1N1 type in a sample is provided herein. Also provided are highly specific oligonucleotides useful for rapid detection of swine flu virus in a sample, as well as swine flu virus specific isothermal gene amplification assay for early clinical diagnosis of H1N1 human patients.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: July 22, 2014
    Assignee: Defence Research & Development Organisation
    Inventors: Manmohan Parida, Jyoti Shukla, Santhosh Sannarangiah, Sashi Sharma, Venkata Lakshmana Putcha Rao, Rajagopalan Vijayaraghavan
  • Publication number: 20130206657
    Abstract: This invention relates to the field of human waste handling, treatment and disposal in mobile public carriers. In particular the invention is directed to a self- sustained bio-digester for onboard degradation of human waste.
    Type: Application
    Filed: May 6, 2011
    Publication date: August 15, 2013
    Applicant: Director General, Defence Research & Development Organisation
    Inventors: Dev Vrat Kamboj, Lokendra Singh, Vichitra Kumar Gangwar, Rajagopalan Vijayaraghavan
  • Publication number: 20120231445
    Abstract: A rapid, sensitive and cost effective process of detection of swine flu virus H1 type in a sample is provided herein. The present invention further provides highly specific oligonucleotides useful for rapid detection of swine flu virus in a sample. Swine flu virus specific isothermal gene amplification assay disclosed in the present invention is highly specific and sensitive and is useful for early clinical diagnosis of H1N1 human patients. The oligonucleotides disclosed in the present invention provide amplification of the target gene in highly sensitive and specific manner showing no cross amplification.
    Type: Application
    Filed: November 11, 2010
    Publication date: September 13, 2012
    Applicant: DEFENCE RESEARCH & DEVELOPMENT ORGANISATION
    Inventors: Manmohan Parida, Jyoti Shukla, Santhosh Sannarangiah, Sashi Sharma, Venkata Lakshmana Putcha Rao, Rajagopalan Vijayaraghavan
  • Publication number: 20080274076
    Abstract: The present invention discloses a composition for use in luring Aedes aegypti mosquitoes to lay their eggs in a target site, which comprises of an effective amount n-heneicosane in a suitable organic solvent. The composition may also contain an effective amount of insecticide capable of killing the mosquito larvae soon after they hatch out of their eggs. measurement switch, a transformer (low voltage/medium voltage), a DC/AC inverter, a capacitor, a voltage dip detection circuit, and a control circuit.
    Type: Application
    Filed: June 23, 2005
    Publication date: November 6, 2008
    Inventors: Shri Prakash, Murlidhar Jaywantrao Mendki, Kumaran Ganesan, Natarajan Gopalan, Ramesh Chandra Malhotra, Kshitij Chandel, Brahma Dutt Parashar, Rajagopalan Vijayaraghavan, Krishnamurthy Sekhar
  • Patent number: 6320079
    Abstract: A process for preparing S-(&ohgr;-aminoalkylamino) alkyl aryl sulfide dihydrochlorides includes the steps of (a) reacting aryl mercaptan and (&ohgr;-aminoalkylamino) alkylbromide dihydrobromide to cause condensation thereof in the presence of an organic base in an organic solvent and provide a condensation product; (b) converting the condensation product to a dihydrochloride salt; and (c) precipitating the dihydrochloride salt. Preferably the precipitated dihydrochloride salt is recrystallized. These dihydrochlorides are new and effective antidotes for sulfur mustard toxicity.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: November 20, 2001
    Assignee: The Chief Controller, Research & Ministry of Defense, Goverment of India
    Inventors: Uma Joshi, Syed Kalbey Raza, Pravin Kumar, Rajagopalan Vijayaraghavan, Devendra Kumar Jaiswal