Patents by Inventor Arvind Singh Negi

Arvind Singh Negi 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).

  • Patent number: 8633242
    Abstract: The present invention relates to benzylidene indanones of general formula 1. The compounds exhibited tubulin polymerisation inhibition. A series of compounds 2-benzylidene 3-(3,4,5-trimethoxyphenyl) indanones having general formula 1 were synthesized from gallic acid through a chemical process. 2-(3,4-Methylenedioxybenzylidine), 3-(3,4,5-trimethoxyphenyl), 4,5,6-trimethoxyindanone (8), a representative compound of this series possessing the molecular formula C29H28O9, was synthesized from gallic acid and exhibits potent anticancer activity. Compound 8 was evaluated for acute oral activity in Swiss albino mice and found to be safe up to 300 mg/kg body weight. The anticancer activity of the compounds has been determined, in order to obtain new potent and cost effective molecules using an in vitro cytotoxicity assay.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: January 21, 2014
    Assignee: Council of Scientific and Industrial Research
    Inventors: Arvind Singh Negi, Ayyampudur Palanisamy Prakasham, Ajit Kumar Saxena, Suaib Luqman, Debabrata Chanda, Tandeep Kaur, Atul Gupta
  • Publication number: 20110092585
    Abstract: The present invention provides a novel pharmaceutical composition consisting of a combination of three coumarinolignoids of formula 1, 2 and 3 isolated from the seeds of the plant Cleome viscosa along with a pharmaceutically acceptable carrier useful as a immunomodulator. The invention also describes the ability of the compounds to modulate humorral and cell mediated immune response. It further provides a process for the preparation of a novel pharmaceutical composition of the said three coumarinolignoids in an optimized ratio to modulate humorral and cell mediated immune response.
    Type: Application
    Filed: September 1, 2010
    Publication date: April 21, 2011
    Applicants: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
    Inventors: Suman Preet Singh Khanuja, Anirban Pal, Sunil Kumar Chattopadhyay, Mahendra Pandurang Darokar, Rajendra Prasad Patel, Anil Kumar Gupta, Arvind Singh Negi, Tanpreet Kaur, Sudeep Tandon, Atul Prakash Kahol, Ankur Garg
  • Patent number: 7579491
    Abstract: The present invention provides a process for production of an anticancer taxoid brevifoliol of the formula I from plants belonging to the genus Taxus by first extracting the dried and pulverized leaves of the plant with an alcohol preferably at a temperature in the range of 20-40° C. and then. concentrating the solvent to obtain an alcoholic extract. The alcoholic extract obtained is then adsorbed with an adsorbent and the resulting adsorbed material is then dried at a temperature ranging from 20-50° C. for 4-48 hours. The dried adsorbed material is then extracted with a combination of an aliphatic solvent and a chlorinated solvent successively and concentrated to obtain a residue. The residue is subjected to gross fractionation using column chromatography such as silica gel, florosil and silicic acid followed by chromatography with a suitable adsorbent to get brevifoliol.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: August 25, 2009
    Assignee: Council of Scientific and Industrial Research
    Inventors: Sunil Kumar Chattopadhyay, Sachin Srivastava, Arvind Singh Negi, Ranganathan Santha Kumar Tirupadiripuliyur, Ankur Garg, Suman Preet Singh Khanuja
  • Patent number: 7196115
    Abstract: The present invention relates to the bioactivity of taxanes isolated from the leaves of Himalayan Yew tree Taxus wallichiana against human cancer cell lines grown in-vitro and subsequent identification of brevifoliol [1] as anticancer agent useful in the treatment of various types of cancer in humans
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: March 27, 2007
    Assignee: Council of Scientific and Industrial Research
    Inventors: Suman Preet Singh Khanuja, Ranganathan Santha Kumar Tirupadiripuliyur, Ankur Garg, Raghvendra Kumar Mishra, Sunil Kumar Chattopadhyay, Sachin Srivastava, Arvind Singh Negi
  • Patent number: 7135590
    Abstract: This invention provides a plant growth regulatory activity of a new biologically active synthetic molecule methanone-(3?,4?,5?-trimethoxy) phenyl, 1-naphthyl, 2-O-4?-ethyl but-2?-enoate. More particularly, the invention relates to the potent plant growth promoting activity of a gallic acid derivative having a structure represented by Formula 1 and a molecular formulae C26H26O7. This invention also provides a novel process for preparation of said molecule from a naturally occurring compound and testing it for growth regulating activity using Bacopa test system developed at CIMAP (Khanuja et al.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: November 14, 2006
    Assignee: Council of Scientific and Industrial Research
    Inventors: Suman Preet Singh Khanuja, Mahendra Pandurang Darokar, Ankur Garg, Togarrati Padmapriya, Ajit Kumar Shasany, Arvind Singh Negi, Sunia Kumar Chattopadhyay, Kachin Srivastava, Asish Kumar Bhattacharya
  • Patent number: 7053218
    Abstract: Demethylation of 3?, 4?-dimethoxy or 3?, 4?, 5?-trimethoxy benzoic ester of a phenol is carried out in the presence of an excess of aluminum halide in an organic solvent to get 4?-Hydroxy, 3?-methoxy or 4? hydroxy, 3?, 5?-dimethoxy benzoic acid ester of a phenol. The reaction is also applicable to 3?, 4?, 5?-trimethoxy diaryl ketone and some natural products like reserpine.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: May 30, 2006
    Assignee: Council of Scientific & Industrial Research
    Inventors: Arvind Singh Negi, Sunil Kumar Chattopadhyay, Sachin Srivastava, Asish Kumar Bhattacharya
  • Publication number: 20040191343
    Abstract: The present invention relates to a pharmaceutical composition useful as a hepatoprotective agent, said composition comprising of a mixture of coumarinolignoids of formula 1,2 and 3. The present invention also relates to a improved process for production of liver protective composition containing coumarinolignoids of formula 1, 2 and 3 from Cleome viscosa with optimized ratios of the same. More particularly, the present invention relates to a processing technology for the isolation of a combination of coumarinolignoids Cliv-92 comprising a mixture of coumarinolignoids of formula 1,2 and 3 from the seeds of Cleome viscosa.
    Type: Application
    Filed: March 31, 2003
    Publication date: September 30, 2004
    Inventors: Sunil Kumar Chattopadhyay, Sachin Srivastava, Arvind Singh Negi, Archana Gupta, Suman Preet Singh Khanuja
  • Publication number: 20040127741
    Abstract: The present invention provides a process for production of an anticancer taxoid brevifoliol of the formula 1 1
    Type: Application
    Filed: December 30, 2002
    Publication date: July 1, 2004
    Applicant: Council of Scientific and Industrial Research
    Inventors: Sunil Kumar Chattopadhyay, Sachin Srivastava, Arvind Singh Negi, Ranganathan Santha Kumar Tirupadiripuliyur, Ankur Garg, Suman Preet Singh Khanuja
  • Publication number: 20040127561
    Abstract: The present invention relates to the bioactivity of taxanes isolated from the leaves of Himalayan Yew tree Taxus wallichiana against human cancer cell lines grown in-vitro and subsequent identification of brevifoliol [1] as anticancer agent useful in the treatment of various types of cancer in humans.
    Type: Application
    Filed: December 30, 2002
    Publication date: July 1, 2004
    Applicant: Council of Scientific and Industrial Research
    Inventors: Suman Preet Singh Khanuja, Ranganathan Santha Kumar Tirupadiripuliyur, Ankur Garg, Raghvendra Kumar Mishra, Sunil Kumar Chattopadhyay, Sachin Srivastava, Arvind Singh Negi