Patents by Inventor Vijaya Raghavan

Vijaya Raghavan 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: 6781002
    Abstract: The invention relates to a process for the isolation of (−)-mesquitol in substantial (1.5%) yields from Dichrostachys cinerea and also the usage of (−)-mesquitol as an antioxidant/free-radical scavenger.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: August 24, 2004
    Assignee: Council of Scientific & Industrial Research
    Inventors: Janaswamy Madhusudana Rao, Rao Jagadeeshwar Rao, Ashok Kumar Tiwari, Jhillu Singh Yadav, Kondapuram Vijaya Raghavan
  • Publication number: 20040116716
    Abstract: The invention relates to a process for the isolation of (−)-mesquitol in substantial (1.5%) yields from Dichrostachys cinerea and also the usage of (−)-mesquitol as an antioxidant/free-radical scavenger.
    Type: Application
    Filed: February 28, 2003
    Publication date: June 17, 2004
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Janaswamy Madhusudana Rao, Rao Jagadeeshwar Rao, Ashok Kumar Tiwari, Jhillu Singh Yadav, Kondapuram Vijaya Raghavan
  • Publication number: 20040116717
    Abstract: This invention relates to a process for isolating (−)-epicatechin from a new plant source namely Dichrostachys cinerea in significant yield.
    Type: Application
    Filed: February 24, 2003
    Publication date: June 17, 2004
    Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
    Inventors: Janaswamy Madhusudana Rao, Rao Jagadeeshwar Rao, Jhillu Singh Yadav, Kondapuram Vijaya Raghavan
  • Publication number: 20040105814
    Abstract: The present invention relates to the preparation of nanocrystalline zeolite beta by a modified aerogel protocol comprising four steps, namely, hydrolysis, nucleation, crystallization and supercritcal drying.
    Type: Application
    Filed: November 29, 2002
    Publication date: June 3, 2004
    Inventors: Kottapalli Koteswara Rao, Bhavnari Puma Chandra Rao, Boyapati Manoranjan Choudary, Lakshmi Kantam Mannepalli, Vijaya Raghavan Kondapuram
  • Patent number: 6737529
    Abstract: The present invention relates to an improved process for the preparation of 2-chloro-5-methylpyridine-3-carbaldehyde which is a useful intermediate in the preparation of a variety of pharmaceutical and pesticide products.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: May 18, 2004
    Assignee: Council of Scientific and Industrial Research
    Inventors: Bhimapaka Chinaraju, Vaidya Jayathirtha Rao, Kondapuram Vijaya Raghavan
  • Patent number: 6730704
    Abstract: The present invention relates to 1-(aryloxy)propionoyl-2-arylsulfonyl hydrazines useful as hypoglycemic agents, and to a process for synthesis thereof. The present invention also relates to the synthesis of 1-(aryloxy)propionoyl-2-arylsulfonyl hydrazines as new hypoglycemic agents which may be useful in the treatment of diabetes.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: May 4, 2004
    Assignee: Council of Scientific & Industrial Research
    Inventors: Ramalingam Thallapalli, Venkata Durga Nageswar Yadavalli, Ramakrishna Sistla, Adari Bhaskar Rao, Prakash Vamanrao Diwan, Jhillu Singh Yadav, Kondapuram Vijaya Raghavan
  • Publication number: 20040081711
    Abstract: The present invention relates to a method for providing &agr;-glucosidase inhibition to a subject by administering a pharmaceutical composition comprising a &agr;-glucosidase inhibitory agent selected from pipataline (formula 1a), sesamin (formula 1b), pellitorine (Formula 1c), guineensine (Formula 1d) and brachystamide-B (formula 1e) having therapeutic application for diabetes mellitus, cancer, viral diseases such as hepatitis B and C, HIV, AIDS etc; also the invention provides a process for the isolation of said &agr;-glucosidase inhibitory agent from the plant source Piper longum in significant yields.
    Type: Application
    Filed: October 29, 2002
    Publication date: April 29, 2004
    Inventors: Janaswamy Madhusudana Rao, Pullela Venkata Srinivas, Vummenthala Anuradha, Ashok Kumar Tiwari, Amtul Zehra Ali, Jhillu Singh Yadav, Kondapuram Vijaya Raghavan
  • Publication number: 20040073413
    Abstract: A method of specifying a truth table includes generating a block diagram model, generating a statechart in the block diagram model, selecting a truth table graphical function in the statechart, and applying a set of graphical semantics for logic specification to the truth table graphical function combined with textual language predicates and actions.
    Type: Application
    Filed: October 10, 2002
    Publication date: April 15, 2004
    Inventors: Robert Olson Aberg, Vijaya Raghavan, Yao Ren
  • Patent number: 6712972
    Abstract: The present invention provides an innovative method based on reaction cum separation on single plate concept for efficient evaluation of porphyrins, calix(4)pyrroles and allied macrocycles by in-situ synthesis from pyrrole with aromatic aldehydes and ketones over zeolite based molecular sieve catalysts as sorbents in thin layer chromatography (TLC) using microwave heating. This glass backed zeolite coated TLC plate acts as a micro reactor as well as separator for the in-situ synthesis and chromatographic separation of macrocycles. The process is simple, economical, rapid, selective and finds a possible application in high throughput parallel synthesis and screening on a single micro plate employing microwave irradiation.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: March 30, 2004
    Assignee: Council of Scientific and Industrial Research
    Inventors: Sita Devi Pothuri, Kondapuram Vijaya Raghavan, Shivanand Janardan Kulkarni, Radha Kishan Motkuri, Radha Rani Vippagunta, Mamidanna Rama Venkata Satyanarayana Murty
  • Publication number: 20040053380
    Abstract: The present invention provides a process for the preparation of antimicrobial compound &bgr;-keto aliphatic acid ester, a novel, aliphatic, fatty acid derivative from Bacillus sp.
    Type: Application
    Filed: July 24, 2003
    Publication date: March 18, 2004
    Inventors: Annapurna Jetty, Dattatray M. Akkewar, Kondapuram Vijaya Raghavan
  • Patent number: 6703532
    Abstract: This invention relates to a process for the nitration of xylene isomers by using zeolite-beta as a catalyst. This invention particularly relates to a process for the nitration of xylenes using solid acid catalyst, thus totally eliminating the disposal of spent acid and salts. Herein we describe the nitration of disubstituted benzenes, all the isomers of xylene, by employing nitric acid and beta zeolite catalyst dispensing the use of acetic anhydride.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: March 9, 2004
    Assignee: Council of Scientific and Industrial Research
    Inventors: Boyapati Manoranjan Choudary, Mannepalli Lakshmi Kantam, Nadakuditi Sailendra Kumar, Kompella Vishweshwara Ram Prasad, Kondapuram Vijaya Raghavan
  • Publication number: 20030216464
    Abstract: The present invention relate to a novel synergistic composition of lignans exhibiting anticancer activities for breast, cervix, neuroblastoma, colon, liver, lung, mouth, ovary and prostate cancer obtained from the plant extract of Cedrus deodra, said composition comprising of (−)-Matairesinol in the range of 9 to 13% by weight, (−)-Wikstromol in the range of 75 to 79% by weight, Dibenzylbutyrolactol in the range of 7 to 11% by weight, and Unidentified material in the range of 2.6 to 3% by weight; further, the synergistic composition of lignan is used in combination with pharmaceutically acceptable carriers for inhibiting growth of various human cancer cell lines selected from breast, cervix, neuroblastoma, colon, liver, lung, mouth, ovary and prostate tissues.
    Type: Application
    Filed: June 17, 2003
    Publication date: November 20, 2003
    Applicant: Council of Scientific and Industrial Research
    Inventors: Janaswamy Madhusudana Rao, Pullela Venkata Srinivas, Jhillu Singh Yadav, Kondapuram Vijaya Raghavan, A.K. Saxena, M. Shanmugavel, Himani Kampasi, Gulam Nabi Qazi
  • Patent number: 6649650
    Abstract: The present invention relate to a novel synergistic composition of lignans exhibiting anticancer activities for breast, cervix, neuroblastoma, colon, liver, lung, mouth, ovary and prostate cancer obtained from the plant extract of Cedrus deodra, said composition comprising of (−)-Matairesinol in the range of 9 to 13% by weight, (−)-Wikstromol in the range of 75 to 79% by weight, Dibenzylbutyrolactol in the range of 7 to 11% by weight, and Unidentified material in the range of 2.6 to 3% by weight; further, the synergistic composition of lignan is used in combination with pharmaceutically acceptable carriers for inhibiting growth of various human cancer cell lines selected from breast, cervix, neuroblastoma, colon, liver, lung, mouth, ovary and prostate tissues.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: November 18, 2003
    Assignee: Council of Scientific and Industrial Research
    Inventors: Janaswamy Madhusudana Rao, Pullela Venkata Srinivas, Jhillu Singh Yadav, Kondapuram Vijaya Raghavan, Ajit Kumar Saxena, Mutiah Shanmugavek, Himani Kampasi, Gulam Nabi Qazi
  • Publication number: 20030212300
    Abstract: The present invention provides a supported osmate useful as a reusable catalyst in the preparation of vicinal diols. The present invention also relates to a process for the preparation of supported osmates of the formula (S—NR3)2OsO4.nH2O wherein S is a support, R is an alkyl group, n is the number of water molecules and use thereof in the preparation of vicinal diols by asymmetric dihydroxylation (AD) of olefins in presence of cinchona alkaloid compounds.
    Type: Application
    Filed: June 13, 2003
    Publication date: November 13, 2003
    Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
    Inventors: Boyapati Manoranjan Choudary, Naidu Sreenivasa Chowdari, Mannepalli Lakshmi Kantam, Kondapuram Vijaya Raghavan
  • Patent number: 6646168
    Abstract: The present invention provides a supported osmate useful as a reusable catalyst in the preparation of vicinal diols. The present invention also relates to a process for the preparation of supported osmates of the formula (S—NR3)2OsO4.nH2O wherein S is a support, R is an alkyl group, n is the number of water molecules and use thereof in the preparation of vicinal diols by asymmetric dihydroxylation (AD) of olefins in presence of cinchona alkaloid compounds.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: November 11, 2003
    Assignee: Council of Scientific and Industrial Research
    Inventors: Boyapati Manoranjan Choudary, Naidu Sreenivasa Chowdari, Mannepalli Lakshmi Kantam, Kondapuram Vijaya Raghavan
  • Publication number: 20030183577
    Abstract: The present invention provides an innovative method based on reaction cum separation on single plate concept for efficient evaluation of porphyrins, calix(4)pyrroles and allied macrocycles by in-situ synthesis from pyrrole with aromatic aldehydes and ketones over zeolite based molecular sieve catalysts as sorbents in thin layer chromatography (TLC) using microwave heating. This glass backed zeolite coated TLC plate acts as a micro reactor as well as separator for the in-situ synthesis and chromatographic separation of macrocycles. The process is simple, economical, rapid, selective and finds a possible application in high throughput parallel synthesis and screening on a single micro plate employing microwave irradiation.
    Type: Application
    Filed: March 28, 2002
    Publication date: October 2, 2003
    Inventors: Sita Devi Pothuri, Kondapuram Vijaya Raghavan, Shivanand Janardan Kulkarni, Radha Kishan Motkuri, Radha Rani Vippagunta, Mamidanna Rama Venkata Satyanarayana Murty
  • Publication number: 20030187065
    Abstract: The present invention relates to 1-(aryloxy)propionoyl-2-arylsulfonyl hydrazines useful as hypoglycemic agents, and to a process for synthesis thereof. The present invention also relates to the synthesis of 1-(aryloxy)propionoyl-2-arylsulfonyl hydrazines as new hypoglycemic agents which may be useful in the treatment of diabetes.
    Type: Application
    Filed: March 29, 2002
    Publication date: October 2, 2003
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Ramalingam Thallapalli, Venkata Durga Nageswar Yadavalli, Ramakrishna Sistla, Adari Bhaskar Rao, Prakash Vamanrao Diwan, Jhillu Singh Yadav, Kondapuram Vijaya Raghavan
  • Publication number: 20030180398
    Abstract: The present invention relates to a novel synergistic herbal composition for the treatment of gastric ulcer, a method for preparing said synergistic herbal composition and a process for the treatment of gastric ulcer using said composition and more particularly, the present invention relates to a novel synergistic herbal composition which is effective against pyloric ligation induced ulcer model and histamine induced ulcer model.
    Type: Application
    Filed: March 25, 2002
    Publication date: September 25, 2003
    Inventors: Janaswamy Madhusudana Rao, Upparapalli Sampathkumar, Boggavarapu Subrahmanya Sastry, Jhillu Singh Yadav, Kondapuram Vijaya Raghavan, Gautam Palit, Deepak Rai, Panniyampally Madhavankutty Varier, Trikovil Sankaran Muraleedharan, Kollath Muraleedharan
  • Publication number: 20030180399
    Abstract: A therapeutic or an edible composition comprising at least three of the five herbs selected from Prunus amygdales, Ocimum sanctum, Azadirachta indica, Aegle marelose and Vitus vinefera, is provided for the treatment of hyperglycemia, especially for non-insulin dependent diabetic subjects, and the herbal composition has significantly reduced the blood glucose levels in both diabetic and non-diabetic experimental subjects having elevated blood glucose levels.
    Type: Application
    Filed: March 19, 2002
    Publication date: September 25, 2003
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Abhay Singh Chauhan, Kishore Babu Chalasani, Sridevi Surapanini, Sharath Kumar Yandrapu, Rajasekhar Kataram, Govardhana Maroju Chary, Prakash Vamanrao Diwan, Kondapuram Vijaya Raghavan
  • Publication number: 20030180250
    Abstract: A composition exhibiting anti-inflammatory activity comprising of a momodisperse macromolecular polymers such as dendrimer having a plurality of terminal groups or such molecules bound/complexed to drug moieties having anti-inflammatory activity or which assist in anti-inflammatory activity and its use in the pharmaceutical formulation for treating disease or pathological conditions associated with inflammation.
    Type: Application
    Filed: March 22, 2002
    Publication date: September 25, 2003
    Applicant: Council of Scientific and Industrial Research
    Inventors: Abhay Singh Chauhan, Prakash Vamanrao Diwan, Narendra Kumar Jain, Kondapuram Vijaya Raghavan