Patents by Inventor Renugadevi Gurusamy

Renugadevi Gurusamy 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: 20200337311
    Abstract: The present invention disclosed fluoralkenyl compounds of general formula (I); wherein; R, R1, R2, R3, A and integers n, m and k are as defined in description. The present invention further discloses use of the compounds of general formula (I) to protect crops by controlling or preventing against undesired phytopathogenic microorganisms such as nematodes and phytopathogenic fungi.
    Type: Application
    Filed: December 17, 2018
    Publication date: October 29, 2020
    Applicant: PI INDUSTRIES LTD.
    Inventors: Sathishkumar Murugan, Renugadevi Gurusamy, Gopalkrushna Tulshidas Waghule, Suresh Ashamoni, Kishor Singh Rathod, Vikram Singh Jhala, Uzma Khan, Deepak Lahanya Ebhad, Anil Kumar Verma, Ruchi Garg, Hagalavadi M. Venkatesha, Alexander G.M. KLAUSENER
  • Publication number: 20140128613
    Abstract: The present invention provides a process for the preparation of key intermediate for the synthesis 5,6-dimethoxy-2-[[1-(phenylmethyl)-4-piperidinyl]methyl]-1-indanone hydrochloride (donepezil hydrochloride). The present invention particularly provides a process for the preparation of 5,6-dimethoxy-2-(4-pyridylmethylene)-1-indanone comprising condensation of 5,6-dimethoxy-1-indanone with 4-pyridinecarboxaldehyde using an alkali metal hydroxide as a mild base in the presence of demineralized water as a solvent at a temperature in the range of 15° C. to 45° C. to yield 5,6-dimethoxy-2-(4-pyridylmethylene)-1-indanone, which is subsequently benzylated using benzyl bromide in the presence of solvent at a reflux temperature to yield 1-benzyl-4-[(5,6-dimethoxy-1-indanone-2-yl)methylene]pyridinium bromide.
    Type: Application
    Filed: March 22, 2012
    Publication date: May 8, 2014
    Applicant: PIRAMAL ENTERPRISES LIMITED
    Inventors: Renugadevi Gurusamy, Mita Roy, Ramasubramanian Shanmuganathan, Ashutosh Jagtap, Sivaramakrishnan Hariharan, Sushil Kumar Mishra, Karuna Wankhede