Patents by Inventor Virendra Kumar

Virendra Kumar 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: 6969747
    Abstract: An olefin polymerization titanium catalyst. It comprises a titanium compound and an organoaluminium compound cocatalyst supported on a soluble polysulfone comprising free reactive sulfone groups. The molar ratio of titanium of aluminum is 1–10:200 and the weight ratio of titanium to polysulfone is 0.01–0.1:0.3–2.5. The process for preparing the catalyst comprises preparing a supported titanium compound by contacting a solution of a polysulfone in a halogenated or polar solvent with a titanium compound or a solution thereof in a halogenated or polar solvent in an inert atmosphere at a temperature between 10° C. and the boiling point of the solvent such that the weight ratio of titanium to polysulfone is 0.01–0.1:0.3–2.5. The supported titanium compound is mixed with an organoaluminium cocatalyst such that the molar ratio of titanium to aluminum is 1–10:200.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: November 29, 2005
    Assignee: Reliance Industries Limited
    Inventors: Sumit Bhaduri, Virendra Kumar Gupta
  • Patent number: 6960612
    Abstract: Methods for prevention or treatment of pruritus are provided. The methods comprise administering to a patient an effective amount of a kappa opioid receptor agonist compound. The involved kappa opioid receptor agonist compounds are of the type represented by the following formula III wherein R1, R2, Ar, X7, and n are as defied in the specification.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: November 1, 2005
    Assignee: Adolor Corporation
    Inventors: Lawrence I. Kruse, An-Chih Chang, Diane L. DeHaven-Hudkins, John J. Farrar, Forrest Gaul, Virendra Kumar, Michael Anthony Marella, Alan L. Maycock, Wei Yuan Zhang
  • Publication number: 20050020576
    Abstract: Compounds having kappa opioid agonist activity, compositions containing them and method of using them as analgesics are provided. The compounds of formulae I, II, IIA, III, IIIA, IIIB, IIB-i, IV and IVA have the structure: wherein R1, R2, R3, R4; and X, X4, X5, X7, X9; Y, Z and n are as described in the specification.
    Type: Application
    Filed: March 23, 2004
    Publication date: January 27, 2005
    Inventors: Wei Zhang, Alan Maycock, Michael Marella, Virendra Kumar, Forrest Gaul, Michael Chang, Deqi Guo
  • Patent number: 6841633
    Abstract: A lower ?-alkene polymerization heterogeneous solid catalyst which comprises a hydrated magnesium chloride derived procatalyst, a cocatalyst comprising an organoaluminium compound and a selectivity control agent comprising an ester or ether. The procatalyst comprises a titanium tetrahalide supported on a magnesium chloride ester complex precursor. Magnesium chloride alcoholate is reacted with an activated carbonyl compound in the presence of a hydrocarbon and/or halohydrocarbon solvent to generate insitu an internal electron donor ester component of the precursor. The precursor is reacted with a titanium tetrahalide optionally in the presence of a hydrocarbon and/or halohydrocarbon solvent.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: January 11, 2005
    Assignee: Reliance Industries Limited
    Inventors: Sumit Bhaduri, Virendra Kumar Gupta
  • Publication number: 20040220112
    Abstract: Compounds having kappa opioid agonist activity, compositions containing them and method of using them as analgesics and pruritic agents are provided.
    Type: Application
    Filed: June 5, 2003
    Publication date: November 4, 2004
    Inventors: Lawrence I. Kruse, An-Chih Chang, Diane L. DeHaven-Hudkins, John J. Farrar, Forrest Gaul, Virendra Kumar, Michael Anthony Marella, Alan L. Maycock, Wei Yuan Zhang
  • Publication number: 20040191288
    Abstract: The present invention relates to an efficient process of vermicomposting and production of high-quality vermicompost from agro-waste(including distillation waste) using animal urine such as cattle urine.
    Type: Application
    Filed: March 31, 2003
    Publication date: September 30, 2004
    Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
    Inventors: Suman Preet Singh Khanuja, Alok Kalra, Ranganathan Santha Kumar Tiruppadiripuliyur, Mahendra Pandurang Darokar, Ajit Kumar Shasany, Dharni Dhar Patra, Virendra Kumar Singh Tomar, Om Parkash Dhawan, Rakesh Pandey, Ravi Prakash Bansal, Raj Kishori Lal, Govind Ram, Anirban Pal
  • Publication number: 20040194176
    Abstract: The present invention was related to the development of a novel, distinct high yielding plant with rapid regeneration ability obtained through screening of the somaclones in a methodical way for fast regeneration in the tissue culture stage itself which was achieved by inventing the plant ‘Kushal’. The plant yield higher herbage with corresponding high essential oil when evaluated with available superior varieties of mint in late planting condition during April when the fields are vacated after the harvest of Rabi crop like wheat, chickpea, coriander etc. Further the suckers required for commercial vegetative planting can be produced even in low land condition as the plant is reasonably tolerant to water logging compared to the best check ‘Kosi’.
    Type: Application
    Filed: March 31, 2003
    Publication date: September 30, 2004
    Inventors: Suman Preet Singh Khanuja, Ajit Kumar Shasany, Usha Yadav, Sunita Dhawan, Mahendra Pandurang Darokar, Janak Raj Bahl, Soni Gupta, Sweta Pandey, Anil Kumar Singh, Ravi Prakash Bansal, Raj Kishori Lal, Om Parkash Dhawan, Ali Arif Naqvi, Alok Kalra, Alok Krishna, Virendra Kumar Singh Tomar, Anil Kumar Singh
  • Patent number: 6750216
    Abstract: Compounds having kappa opioid agonist activity, compositions containing them and method of using them as analgesics are provided. The compounds of formula IIIB have the structure: wherein R1, R2, R, Ar and n are as described in the specification.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: June 15, 2004
    Assignee: Adolor Corporation
    Inventors: Virendra Kumar, Deqi Guo, Michael Anthony Marella, Alan L. Maycock
  • Patent number: 6740619
    Abstract: The present invention relates to a process for the preparation of metal phthalocyanine sulphonamide [MPc(SO2NHR)x] catalyst useful for sweetening of LPG and light petroleum distillates which comprises reacting a metal phthalocyanine with chlorosulphonic acid at 90-150° C. for 1-5 hrs. cooling the reaction mixture adding 1-7 parts of a chloride reagent heating the said mixture at 60-80° C. from 0.5-3 hrs. to obtain the metal phthalocyanine sulphonyl chloride, isolating it by adding the reaction mixture in ice cold water, reacting the isolated metal phthalocyanine sulphonyl chloride with an amine of general formula H2NR where R is selected from hydrogen, aryl, alkyl and cycloalkyl in an aqueous or non-aqueous medium or a mixture thereof at a temperature in the range −4 to 15° C.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: May 25, 2004
    Assignee: Council of Scientific and Industrial Research
    Inventors: Bir Sain, Som Nath Puri, Gautam Das, Bhagwati Prasad Balodi, Sunil Kumar, Anil Kumar, Virendra Kumar Kapoor, Virendra Kumar Bhatia, Turuga Sundara Rama Prasada Rao, Gur Pratap Rai
  • Publication number: 20030236248
    Abstract: Compounds having kappa opioid agonist activity, compositions containing them and method of using them as analgesics and pruritic agents are provided.
    Type: Application
    Filed: June 5, 2003
    Publication date: December 25, 2003
    Inventors: Lawrence I. Kruse, An-Chih Chang, Diane L. DeHaven-Hudkins, John J. Farrar, Forrest Gaul, Virendra Kumar, Michael Anthony Marella, Alan L. Maycock, Wei Yuan Zhang
  • Patent number: 6664319
    Abstract: A golf ball is provided that includes a molded resilient inner core made of a rubber compound and a polymeric cover surrounding the inner core. The rubber compound is a halo-butyl rubber polymer and a carbon black filler in an amount of 80% to 100% by weight of the total rubber component.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: December 16, 2003
    Assignee: Waggle Pty LTD
    Inventors: Virendra Kumar Bahl, Steven Joseph Fisher
  • Publication number: 20030144272
    Abstract: Compounds having kappa opioid agonist activity, compositions containing them and method of using them as analgesics are provided.
    Type: Application
    Filed: May 15, 2002
    Publication date: July 31, 2003
    Inventors: Virendra Kumar, Deqi Guo, Michael Anthony Marella, Alan L. Maycock
  • Patent number: 6565740
    Abstract: The present invention related to a process for sweetening of LPG light petroleum distillates by liquid liquid extraction using metal phtalocyanine sulphonamide catalyst which comprises extracting the mercaptanes contain in LPG, light petroleum distillate like pentanes, light straight run naphtha by liquid-liquid extraction using an aqueous or alcoholic solution of alkali metal hydroxide of concentration ranging between 1 wt % to 50 wt % in the presence of a metal phthalocyanine sulphonamide catalyst in the concentration ranging from 5-4000 ppmw, at a temperature ranging from 10° C. to 80° C. at a pressure ranging from 1 kg/cm2-50 kg/cm2 in a continuous or batch manner, converting the mercaptanes present in above said extract into corresponding disulphides by passing air, oxygen or any oxygen containing gas at the above same temperature and pressure, regenerating the alkali solution containing catalyst for recycling by separating the upper layer of disulphides from said alkali solution of catalyst.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: May 20, 2003
    Assignee: Council of Scientific and Industrial Research
    Inventors: Bir Sain, Som Nath Puri, Gautam Das, Bhagwati Prasad Balodi, Sunil Kumar, Anil Kumar, Virendra Kumar Kapoor, Virendra Kumar Bhatia, Turuga Sundara Rama Prasada Rao, Gur Pratap Rai
  • Patent number: 6492351
    Abstract: The compounds of formulae IIA, the structure: wherein R1, R2, and X4, X5, n are as described in the specification.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: December 10, 2002
    Assignee: Adolor Corporation
    Inventors: Wei Yuan Zhang, Alan L. Maycock, Michael Anthony Marella, Virendra Kumar, Forrest Gaul, Deqi Guo
  • Patent number: 6487591
    Abstract: Replacing the functionality of an active digital loop carrier subsystem (DLCSS) or active module with a standby DLCSS or standby module in an IP addressable telecommunication switch is effected by providing only a single externally-known IP address for the module pair and then swapping the IP address of the active module for the IP address of the standby module so that externally-connected devices recognize only the IP address for the module in use. A central network management station in communication with a local nonvolatile memory element controls the IP address swapping.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: November 26, 2002
    Assignee: Cisco Technology, Inc.
    Inventors: Virendra Kumar Budhraja, Richard F. Sustek
  • Patent number: 6486165
    Abstract: Method for the prevention or treatment of pruritus with anti-pruritic compounds is provided.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: November 26, 2002
    Assignee: Adolor Corporation
    Inventors: Wei Yuan Zhang, Alan L. Maycock, Michael Anthony Marella, Virendra Kumar, Forrest Gaul, Deqi Guo
  • Publication number: 20020166799
    Abstract: The present invention relate to a process for sweetening of LPG, light petroleum distillates by liquid-liquid extraction using metal phthalocyanine sulphonamide catalyst which comprises extracting the mercaptanes contained in LPG, light petroleum distillate like pentanes, light straight run naphtha by liquid-liquid extraction using an aqueous or alcoholic solution of alkali metal hydroxide of concentration ranging between 1 wt % to 50 wt % in the presence of a metal phthalocyanine sulphonamide catalyst in the concentration ranging from 5-4000 ppmw, at a temperature ranging from 10° C. to 80° C., at a pressure ranging from 1 kg/cm2-50 kg/cm2 in a continuous or batch manner, converting the mercaptanes present in above said extract into corresponding disulphides by passing air, oxygen or any oxygen containing gas at the above same temperature and pressure, regenerating the alkali solution containing catalyst for recycling by separating the upper layer of disulphides from said alkali solution of catalyst.
    Type: Application
    Filed: March 26, 2001
    Publication date: November 14, 2002
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Bir Sain, Som Nath Puri, Gautam Das, Bhagwati Prasad Balodi, Sunil Kumar, Anil Kumar, Virendra Kumar Kapoor, Virendra Kumar Bhatia, Turuga Sundara Rama Prasada Rao, Gur Pratap Rai
  • Patent number: PP16474
    Abstract: The present invention relates to a new and distinct mint plant of Mentha piperita ‘Cim Indus’, selected through screening, field trial and analysis of monoterpene constituents of the essential oil of the germplasm, possessing the characters of producing high amount of menthofuran ranging between 22 to 30% of total oil content, high amount pulegone ranging between 9.0 to 18% of total oil content, with essential oil content ranging between 0.32 to 0.40% of the total oil content.
    Type: Grant
    Filed: December 29, 2003
    Date of Patent: April 25, 2006
    Assignee: Council of Scientific and Industrial Research
    Inventors: Suman Preet Singh Khanuja, Nirmal Kumar Patra, Ajit Kumar Shasany, Birendra Kumar, Soni Gupta, Rakesh Kumar Upadhyay, Togarrati Padma Priya, Anil Kumar Singh, Mahendra Pandurang Darokar, Virendra Kumar Singh Tomar, Janak Raj Bahal, Raj Kishori Lal
  • Patent number: PP16566
    Abstract: The present invention was related to the development of a novel, distinct high yielding plant with rapid regeneration ability obtained through screening of the somaclones in a methodical way for fast regeneration in the tissue culture stage itself which was achieved by inventing the plant ‘Kushal’. The plant yield higher herbage with corresponding high essential oil when evaluated with available superior varieties of mint in late planting condition during April when the fields are vacated after the harvest of Rabi crop like wheat, chickpea, coriander etc. Further the suckers required for commercial vegetative planting can be produced even in low land condition as the plant is reasonably tolerant to water logging compared to the best check ‘Kosi’.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: May 23, 2006
    Assignee: Council of Scientific and Industrial Research
    Inventors: Suman Preet Singh Khanuja, Ajit Kumar Shasany, Usha Yadav, Sunita Dhawan, Mahendra Pandurang Darokar, Janak Raj Bahl, Soni Gupta, Sweta Pandey, Anil Kumar Singh, Ravi Prakash Bansal, Raj Kishori Lal, Om Parkash Dhawan, Ali Arif Naqvi, Alok Kaira, Alok Krishna, Virendra Kumar Singh Tomar, Anil Kumar Singh
  • Patent number: RE38133
    Abstract: Compounds having kappa opioid agonist activity, compositions containing them and method of using them as analgesics are provided. The compounds of formulae I, II, III and IV have the structure: wherein: X, X4, X5, X7, X9; R1, R2, R3, R4; and Y, Z and n are as described in the specification.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: June 3, 2003
    Assignee: Adolor Corporation
    Inventors: Lawrence I. Kruse, An-Chih Chang, Diane L. DeHaven-Hudkins, John J. Farrar, Forrest Gaul, Virendra Kumar, Michael Anthony Marella, Alan L. Maycock, Wei Yuan Zhang