Patents by Inventor Sudhir Sharadchandra Kulkarni

Sudhir Sharadchandra Kulkarni 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).

  • Process for the preparation of ultrafiltration membranes of polyacrylonitrile, using malic acid as an additive
    Patent number: 6858141
    Abstract: The present Application relates to a process for the preparation of ultrafiltration membranes from polyacrylonitrile using malic acid as additives, with said membrane of molecular weight ranging between 80 to 180K, showing high purification and water permeating ability.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: February 22, 2005
    Assignee: Council of Scientific & Industrial Research (CSIR)
    Inventors: Sudhir Sharadchandra Kulkarni, Madhuri Himmatrao Shinde, Deepak Anandrao Musale
  • Process for the recovery of potassium bitartrate and other products from tamarind pulp
    Patent number: 6316615
    Abstract: The invention relates to a novel process for the recovery of potassium bitartrate and pectin, sugars, fruit acids as by-products from tamarind pulp.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: November 13, 2001
    Assignee: Council of Scientific & Industrial Research
    Inventors: Mohan Gopalkrishna Kulkarni, Madhav Jagannath Thakar, Sudhir Sharadchandra Kulkarni, Sanjay Narayan Nene, Bhaskar Ganapatrao Gaikwad
  • Process for the recovery of tartaric acid and other products from tamarind pulp
    Patent number: 5994533
    Abstract: The invention provides Potassium bitartrate, pectin, L(+) tartaric acid and fruit sugars present in tamarind pulp, which are recovered sequentially by extracting the pulp in water, concentrating and chilling the extract, filtering out potassium bitartrate, precipitating out pectin from the filtrate by addition of acetone, extracting L(+) tartaric acid selectively by complexation with tertiary amine and recovering from the amine layer by back extraction into aqueous layer in the presence of a diluent at around 70.degree. C. followed by concentration and drying of the aqueous layer and treating the raffinate layer from solvent extraction with activated carbon, anion exchange resin, and concentrating to yield sugar containing 70% sugars.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: November 30, 1999
    Assignee: Council of Scientific & Industrial Research
    Inventors: Mohan Gopalkrishna Kulkarni, Sudhir Sharadchandra Kulkarni, Sanjay Narayan Nene, Madhav Jagannath Thakar, Bhaskar Ganapatrao Gaikwad