Patents by Inventor Amita Bhattacharya

Amita Bhattacharya 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: 7879371
    Abstract: The present invention relates to a thermolabile caffeine fraction useful for an efficient Agrobacterium-mediated genetic transformation in plant systems to develop desired traits in plant, and a method of preparing said fraction from tea leaves and also, an efficient and cost-effective method of introducing said Agrobacterium-mediated genetic transformation into plant systems using said caffeine fraction of tea leaves.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: February 1, 2011
    Assignee: Council of Scientific & Industrial Research
    Inventors: Indra Sandal, Ajay Kumar, Amita Bhattacharya, Ravindranath Srigiripuram Desikalhar, Ashu Gulati, Paramvir Singh Ahuja
  • Publication number: 20100077511
    Abstract: The present invention relates to a thermolabile caffeine fraction useful for an efficient Agrobacterium-mediated genetic transformation in plant systems to develop desired traits in plant, and a method of preparing said fraction from tea leaves and also, an efficient and cost-effective method of introducing said Agrobacterium-mediated genetic transformation into plant systems using said caffeine fraction of tea leaves.
    Type: Application
    Filed: September 18, 2009
    Publication date: March 25, 2010
    Inventors: Indra SANDAL, Ajay Kumar, Amita Bhattacharya, Ravindranath Srigiripuram Desikalhar, Ashu Gulati, Paramvir Singh Ahuja
  • Publication number: 20100016588
    Abstract: The present invention relates to a thermolabile caffeine fraction useful for an efficient Agrobacterium-mediated genetic transformation in plant systems to develop desired traits in plant, and a method of preparing said fraction from tea leaves and also, an efficient and cost-effective method of introducing said Agrobacterium-mediated genetic transformation into plant systems using said caffeine fraction of tea leaves.
    Type: Application
    Filed: September 28, 2009
    Publication date: January 21, 2010
    Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
    Inventors: Indra SANDAL, Ajay Kumar, Amita Bhattacharya, Ravindranath Srigiripuram Desikalhar, Ashu Gulati, Paramvir Singh Ahuja
  • Patent number: 7608288
    Abstract: The present invention relates to a thermolabile caffeine fraction useful for an efficient Agrobacterium-mediated genetic transformation in plant systems to develop desired traits in plants, and a method of preparing said fraction from tea leaves and also, an efficient and cost-effective method of introducing said Agrobacterium-mediated genetic transformation into plant systems using said caffeine fraction of tea leaves.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: October 27, 2009
    Assignee: Council of Scientific & Industrial Research
    Inventors: Indra Sandal, Ajay Kumar, Amita Bhattacharya, Ravindranath Srigiripuram Desikalhar, Ashu Gulati, Paramvir Singh Ahuja
  • Patent number: 7145058
    Abstract: The present invention relates to an efficient and cost effective method of preventing growth of genetic transformant bacteria Agrobacterium tumefaciens after transformation in plants by using tea leaf extract as a bactericide, wherein said method leads to elimination of common problem of polyphenol oxidation during transformation and thereby helps maintain regeneration potential in explants and also helps in increased transformation efficacy
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: December 5, 2006
    Assignee: Council of Scientific and Industrial Research
    Inventors: Indra Sandal, Amita Bhattacharya, Ashu Gulati, Srigiripuram D. Ravindranath, Paramvir Singh Ahuja
  • Patent number: 7129394
    Abstract: The present invention relates to Production of transgenic tea (Camellia sinensis (L.) O. Kuntze) through biolistic.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: October 31, 2006
    Assignee: Council of Scientific and Industrial
    Inventors: Indra Sandal, Amita Bhattacharya, Paramvir Singh Ahuja
  • Publication number: 20040216191
    Abstract: The present invention relates to Production of transgenic tea (Camellia sinensis (L.) O.
    Type: Application
    Filed: January 22, 2002
    Publication date: October 28, 2004
    Applicant: Council of Scientific and Industrial Research
    Inventors: Indra Sandal, Amita Bhattacharya, Paramvir Singh Ahuja
  • Publication number: 20040009544
    Abstract: The present invention relates to a thermolabile caffeine fraction useful for an efficient Agrobacterium-mediated genetic transformation in plant systems to develop desired traits in plant, and a method of preparing said fraction from tea leaves and also, an efficient and cost-effective method of introducing said Agrobacterium-mediated genetic transformation into plant systems using said caffeine fraction of tea leaves.
    Type: Application
    Filed: March 25, 2003
    Publication date: January 15, 2004
    Inventors: Indra Sandal, Ajay Kumar, Amita Bhattacharya, Ravindranath Srigiripuram Desikalhar, Ashu Gulati, Paramvir Singh Ahuja
  • Publication number: 20030186442
    Abstract: The present invention relates to an efficient and cost effective method of preventing growth of genetic transformant bacteria Agrobacterium tumefaciens after transformation in plants by using tea leaf extract as a bactericide, wherein said method leads to elimination of common problem of polyphenol oxidation during transformation and thereby helps maintain regeneration potential in explants and also helps in increased transformation efficacy
    Type: Application
    Filed: March 27, 2002
    Publication date: October 2, 2003
    Inventors: Indra Sandal, Amita Bhattacharya, Ashu Gulati, S.D. Ravindranath, Paramvir Singh Ahuja
  • Publication number: 20030148518
    Abstract: The present invention describes an improved method of Podophyllum hexandrum Royle through embryo culture technique by using B5 medium supplemented with 3% sucrose and 0.8% agar under initial dark conditions for embryo germination and initial embling growth followed by light/dark photoperiod regime for further embling development.
    Type: Application
    Filed: March 22, 2001
    Publication date: August 7, 2003
    Inventors: Amit Chandra Kharkwal, Om Prakash, Amita Bhattacharya, Paramvir Singh Ahuja
  • Patent number: 6599743
    Abstract: The present invention relates to novel method for micropropagation of tea plants from explants obtained from completely folded, half opened or fully expanded leaves via callus phase, by culturing the explants on different media.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: July 29, 2003
    Assignee: Council of Scientific & Industrial Research
    Inventors: Indra Sandal, Amita Bhattacharya, Madhu Sharma, P. S. Ahuja
  • Patent number: 6548300
    Abstract: The invention provides a one step method for micropropagation of tea plants from leaf explants via callus phase, wherein the explants are maintained in basal Murashige and Skoog medium (Murashige T. and Skoog F. A revised medium for rapid growth and bioassays with tobacco tissue cultures. Physiol. Plant. 15: 473-497; 1962) supplemented with vitamins like thiamine-HCl (0.05 to 2.0 mg/l), pyridoxine-HCl (0.25 to 1.5 mg/l) and nicotinic acid (0.25 to 1.5 mg/l) together with glycine (1.0 to 3.0 mg/l) and either 2.5, 5.0 or 7.5 mg/l 2,4-Dichlorophenoxy acetic acid for a period of 14-16 weeks, from the stage of induction of callus to rhizogenesis and shoot formation.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: April 15, 2003
    Assignee: Council of Scientific & Industrial Research
    Inventors: Indra Sandal, Amita Bhattacharya, Madhu Sharma, Paramvir Singh Ahuja
  • Publication number: 20020137208
    Abstract: The present invention relates to novel method for micropropagation of tea plants from explants obtained from completely folded, half opened or fully expanded leaves via callus phase, by culturing the explants on different media.
    Type: Application
    Filed: March 22, 2001
    Publication date: September 26, 2002
    Inventors: Indra Sandal, Amita Bhattacharya, Madhu Sharma, P.S. Ahuja
  • Patent number: 6449899
    Abstract: The present invention describes a method for inducing improved seed germination in a high altitude medicinal plant, Podophyllum hexandrum Royle through hot water treatment at 40° C.-100° C. for 30-120 seconds.
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: September 17, 2002
    Assignee: Council of Scientific and Industrial Research
    Inventors: Amit Chandra Kharkwal, Om Prakash, Amita Bhattacharya, Pramod Kumar Nagar, Paramvir Singh Ahuja
  • Publication number: 20020124465
    Abstract: The present invention describes a method for inducing improved seed germination in a high altitude medicinal plant, Podophyllum hexandrum Royle through hot water treatment at 40° C.-100° C. for 30-120 seconds.
    Type: Application
    Filed: March 8, 2001
    Publication date: September 12, 2002
    Inventors: Amit Chandra Kharkwal, Om Prakash, Amita Bhattacharya, Pramod Kumar Nagar, Paramvir Singh Ahuja