Patents by Inventor Raju Mahadev Kharatkar

Raju Mahadev Kharatkar 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 (3-CHLORO-2-PYRIDYL)HYDRAZINE
    Publication number: 20230018429
    Abstract: Described herein are novel methods of synthesizing (3-chloro-2-pyridyl)hydrazine. Compounds prepared by the methods disclosed herein are useful for preparation of certain anthranilamide compounds that are of interest as insecticides, such as, for example, the insecticides chlorantraniliprole and cyantraniliprole.
    Type: Application
    Filed: November 22, 2020
    Publication date: January 19, 2023
    Inventors: DEVARAJAN CHOCKALINGAM, VIPUL DUDHAT, RAJU MAHADEV KHARATKAR, JIANHUA MAO, PANKAJKUMAR VEKARIYA, DHARMESH BALVANTRAI BHATT
  • Process for the preparation of high purity miglustat
    Patent number: 9718777
    Abstract: A process for the preparation and isolation of crystalline miglustat without the use of a column chromatography or ion exchange purification. The crystalline miglustat has a high purity and a melting point of 128° C. and an endothermic peak is 133° C.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: August 1, 2017
    Assignee: Navinta, LLC
    Inventors: Shrenik K. Shah, Raju Mahadev Kharatkar, Chiragkumar Anilkumar Bhatt, Jitendra Bhagwandas Kevat
  • Process For The Preparation Of High Purity Miglustat
    Publication number: 20160168092
    Abstract: A process for the preparation and isolation of crystalline miglustat without the use of a column chromatography or ion exchange purification. The crystalline miglustat has a high purity and a melting point of 128° C. and an endothermic peak is 133° C.
    Type: Application
    Filed: December 10, 2015
    Publication date: June 16, 2016
    Inventors: Shrenik K. Shah, Raju Mahadev Kharatkar, Chiragkumar Anilkumar Bhatt, Jitendra Bhagwandas Kevat
  • Processes for Preparing Donepezil
    Publication number: 20100105916
    Abstract: A process for preparing highly pure donepezil, particularly donepezil hydrochloride, is provided comprising hydrogenating compound 1-benzyl-4-[(5,6-dimethoxy-1-indanon)-2-ylidene]methyl-piperidine or its hydrochloride salt with a noble metal catalyst or a derivative thereof, in the presence of at least one additive, wherein the additive contains at least one heteroatom, e.g., a sulfur, phosphorous, or nitrogen heteroatom.
    Type: Application
    Filed: April 23, 2009
    Publication date: April 29, 2010
    Applicant: Sterling Biotech Limited
    Inventors: Raju Mahadev Kharatkar, Sachin Vinayakrao Pande, Nilesh Liladhar Bonde, Godfree Pavalu Fernandes, Sugata Chatterjee