Patents by Inventor Paruchuri Gangadhar Rao

Paruchuri Gangadhar Rao 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: 20150328170
    Abstract: The present invention relates to a synergistic pharmaceutical composition comprising Compound C2 (Neo-isopulegol), C3 (Iso-pulegol) and C4 (Citronellol) derived from herbal seed extract of Litsea cubeba useful for the treatment of lung cancer. The present invention also relates to the activity of compounds C2 or C3 or C4 either alone or in combination in killing of A549 lung cancer cells.
    Type: Application
    Filed: September 5, 2012
    Publication date: November 19, 2015
    Applicants: Visva-Bharati, Council of Scientific & Industrial Research
    Inventors: Mantu Bhuyan, Pranab Ram Bhattacharyya, Pranab Kumar Baruah, Nabin Chandra Barua, Paruchuri Gangadhar Rao, Sushmita Bhattacharya, Rakesh Kundu, Priyajit Chatterjee, Soma Seal, Sandeep Mukherjee, Suman Dasgupta, Sudipta Moitra, Shelley Bhattacharya, Samir Bhattacharya
  • Patent number: 8912357
    Abstract: This invention is directed to the production of shikimic acid from Illicium griffithii fruits. The method according to the invention is particularly applicable to the isolation of shikimic acid from Illicium griffithii fruits (seeds and pericarps). Yield is 12-18% w/w. Shikimic acid is useful as raw material for the production of oseltavir (Tamiflu) used against Avian Flu. It is also reported that its triacyl derivatives can inhibit blood platelet assembling and Thrombosis by affecting the metabolism of Arachidonic acid. Hitherto known commercial methods of production of shikimic acid from the fruits of star anise (Illicium verum) and sweet gum (Liquidambar styraciflua) gives only 3-7% and 1.5% respectively. The price of shikimic acid in the international market varies from US$ 45.00 to 1000.00 per Kg depending on demand. Further as per report published at the website www.livemint.com, China Government has imposed restriction on export of shikimic acid.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: December 16, 2014
    Assignee: Council of Scientific & Industrial Research
    Inventors: Manobjyoti Bordoloi, Jayanta Borah, Dipak Kumar Roy, Subhash Chandra Dutta, Nabin Chandra Baruah, Paruchuri Gangadhar Rao
  • Patent number: 8841466
    Abstract: This invention relates to the synthesis of certain novel Baylis-Hillman adducts of artremisinin derived aldehyde 2-[10??-deoxoartemisininyl]-ethanal. The capabilities of introduction of three functional groups into a molecule in one step using Baylis-Hillman reaction encouraged us to synthesize some highly functionalized derivatives of artemisinin. These highly functionalized artemisinin derivatives embodied in this document are found to be active against various cancer cell-lines.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: September 23, 2014
    Assignee: Council of Scientific & Industrial Research
    Inventors: Gakul Baishya, Nabin Chandra Barua, Abhishek Goswami, Partha Pratim Saikia, Paruchuri Gangadhar Rao, Ajit Kumar Saxena, Nitasha Suri, Madhunika Sharma
  • Patent number: 8680288
    Abstract: The present invention relates to Pyridin-2-yl sulfanyl acid ester compounds having antiinflammatory properties. The present invention particularly relates to novel anti-inflammatory heterocyclic acid esters of Pyridin-2-yl sulfanyl having the structure of general formula 1 which have been screened for their antiinflammatory activity with respect to inhibition of adhesion of neutrophils, isolated from human peripheral blood, onto the surface of human umbilical vein endothelial cells (HU-VEC) as a result of inhibition of the cytokine-stimulated expression of cell adhesion molecule ICAM-1. The compound RS—Z, 3-(Pyridin-2-yl sulfanyl)-propionic acid pentyl ester (structure 1a, R1=H, R2=H, R3=CH2-COOC5H11) was found to be most effective for ICAM-1 and neutrophil adhesion inhibition and was found to effectively alleviate inflammation mediated by excessive leukocyte infiltration leading to inflammatory disorders or like conditions, such as acute lung injury and acute respiratory distress syndrome in mice.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: March 25, 2014
    Assignee: Council of Scientific & Industrial Research
    Inventors: Jadab Chandra Sarma, Dilip Chandra Bora, Paruchuri Gangadhar Rao, Balaram Ghosh, Sakshi Balwani
  • Publication number: 20130331581
    Abstract: The present invention relates to 1,2,3-triazole containing artemisinin compounds and process for preparation thereof. Described herein is the synthesis, bioassay results and usefulness of the artemisinin derived compounds resulting from 1,3-di-polar cycloaddition reaction of artemisinin derived azide or alkyne with aliphatic or aromatic diazides. These 1,2,3-triazole containing artemisinin derived compounds embodied in this document are found to be active against various cancer cell-lines.
    Type: Application
    Filed: February 14, 2012
    Publication date: December 12, 2013
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Bishwajit Saikia, Nabin Chandra Barua, Partha Pratim Saikia, Abhishek Goswami, Paruchuri Gangadhar Rao, Ajit Kumar Saxena, Nitasha Suri
  • Patent number: 8513226
    Abstract: The present invention relates to preparation and biological evaluation of 3-acetoxy-17-acetamido-16-formyl-androst-5,17-diene (4) and 3-acetoxy2?-chloro-5-androsteno[17,16-b]pyridine (5) as gastric proton pump inhibitor and their comparison to that of omeprazole, a clinically employed anti-gastric ulcer drug. Compound (4) exhibited dose dependent inhibition of histamine-stimulated acid secretion in gastric parietal cell with an IC50 value comparable to cimetidine. No mortality or behavioral abnormality of Swiss albino mice was observed under single-dose level of 1 g/Kg body weight of compound (4). Compound (4) further exhibited excellent anti ulcer activity in vivo against indomethacin induced ulcer.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: August 20, 2013
    Assignee: Council of Scientific and Industrial Research
    Inventors: Romesh Chandra Boruah, Moyurima Borthakur, Madan Gopal Barthakur, Paruchuri Gangadhar Rao, Sudip Kumar Kar, Annalakshmi Chinniah, Suchandra Goswami, Pratap Kumar Das
  • Publication number: 20130137895
    Abstract: This invention is directed to the production of shikimic acid from Illicium griffithii fruits. The method according to the invention is particularly applicable to the isolation of shikimic acid from Illicium griffithii fruits (seeds and pericarps). Yield is 12-18% w/w. Shikimic acid is useful as raw material for the production of oseltavir (Tamiflu) used against Avian Flu. It is also reported that its triacyl derivatives can inhibit blood platelet assembling and Thrombosis by affecting the metabolism of Arachidonic acid. Hitherto known commercial methods of production of shikimic acid from the fruits of star anise (Illicium verum) and sweet gum (Liquidambar styraciflua) gives only 3-7% and 1.5% respectively. The price of shikimic acid in the international market varies from US$ 45.00 to 1000.00 per Kg depending on demand. Further as per report published at the website www.livemint.com, China Government has imposed restriction on export of shikimic acid.
    Type: Application
    Filed: March 9, 2011
    Publication date: May 30, 2013
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Manobjyoti Bordoloi, Jayanta Borah, Dipak Kumar Roy, Subhash Chandra Dutta, Nabin Chandra Baruah, Paruchuri Gangadhar Rao
  • Publication number: 20130131350
    Abstract: The present invention relates to Pyridin-2-yl sulfanyl acid ester compounds having antiinflammatory properties. The present invention particularly relates to novel anti-inflammatory heterocyclic acid esters of Pyridin-2-yl sulfanyl having the structure of general formula 1 which have been screened for their antiinflammatory activity with respect to inhibition of adhesion of neutrophils, isolated from human peripheral blood, onto the surface of human umbilical vein endothelial cells (HU-VEC) as a result of inhibition of the cytokine-stimulated expression of cell adhesion molecule ICAM-1. The compound RS—Z, 3-(Pyridin-2-yl sulfanyl)-propionic acid pentyl ester (structure 1a, R1=H, R2=H, R3=CH2-COOC5H11) was found to be most effective for ICAM-1 and neutrophil adhesion inhibition and was found to effectively alleviate inflammation mediated by excessive leukocyte infiltration leading to inflammatory disorders or like conditions, such as acute lung injury and acute respiratory distress syndrome in mice.
    Type: Application
    Filed: July 20, 2011
    Publication date: May 23, 2013
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Jadab Chandra Sarma, Dilip Chandra Bora, Paruchuri Gangadhar Rao, Balaram Ghosh, Sakshi Balwani
  • Publication number: 20130030044
    Abstract: This invention relates to the synthesis of certain novel Baylis-Hillman adducts of artremisinin derived aldehyde 2[10??-deoxoartemisininyl]-ethanal. The capabilities of introduction of three functional groups into a molecule in one step using Baylis-Hillman reaction encouraged us to synthesize some highly functionalized derivatives of artemisinin.
    Type: Application
    Filed: January 20, 2011
    Publication date: January 31, 2013
    Applicant: Council of Scientific & Industrial Research
    Inventors: Gakul Baishya, Nabin Chandra Barua, Abhishek Goswami, Partha Pratim Saikia, Paruchuri Gangadhar Rao, Ajit Kumar Saxena, Nitasha Suri, Madhunika Sharma
  • Publication number: 20110028440
    Abstract: The present invention relates to preparation and biological evaluation of 3-acetoxy-17-acetamido-16-formyl-androst-5,17-diene (4) and 3-acetoxy2?-chloro-5-androsteno[17,16-b]pyridine (5) as gastric proton pump inhibitor and their comparison to that of omeprazole, a clinically employed anti-gastric ulcer drug. Compound (4) exhibited dose dependent inhibition of histamine-stimulated acid secretion in gastric parietal cell with an IC50 value comparable to cimetidine. No mortality or behavioral abnormality of Swiss albino mice was observed under single-dose level of 1 g/Kg body weight of compound (4). Compound (4) further exhibited excellent anti ulcer activity in vivo against indomethacin induced ulcer.
    Type: Application
    Filed: March 26, 2009
    Publication date: February 3, 2011
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Romesh Chandra Boruah, Moyurima Borthkur, Madan Gopal Barthakur, Paruchuri Gangadhar Rao, Sudip Kumar Kar, Annalaxmi Chinniah, Suchandra Goswami, Pratap Kumar Das
  • Patent number: 6935144
    Abstract: An improved device for leather processing comprising a vessel containing perforated dummy doors and compartments with pegs as well as friction disk fixed along the exterior periphery of the vessel. The leathers to be wet processed are subjected to mechanical action in terms of both rocking action as well as rotational movement simultaneously. The perpetual motion of the device help to create pressure generation for quickening the process and for addition of chemical solution continuously. The processing takes place under pressure generated inside the vessel and with the support of multiple mechanical actions, resulting in higher exhaustion of bath with less processing time and energy requirement and higher capacity utilization to produce good quality leather.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: August 30, 2005
    Assignee: Council of Scientific and Industrial Research
    Inventors: Duraiswamy Lakshmanan, Bommya Thangaraj, Subramaniyam Krishnan, Natesan Samivelu, Paruchuri Gangadhar Rao, Thirumalachari Ramasami
  • Publication number: 20040182118
    Abstract: An improved device for leather processing comprising a vessel containing perforated dummy doors and compartments with pegs as well as friction disk fixed along the exterior periphery of the vessel. The leathers to be wet processed are subjected to mechanical action in terms of both rocking action as well as rotational movement simultaneously. The perpetual motion of the device help to create pressure generation for quickening the process and for addition of chemical solution continuously. The processing takes place under pressure generated inside the vessel and with the support of multiple mechanical actions, resulting in higher exhaustion of bath with less processing time and energy requirement and higher capacity utilization to produce good quality leather.
    Type: Application
    Filed: March 20, 2003
    Publication date: September 23, 2004
    Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
    Inventors: Duraiswamy Lakshmanan, Bommya Thangaraj, Subramaniyam Krishnan, Natesan Samivelu, Paruchuri Gangadhar Rao, Thirumalachari Ramasami