Patents by Inventor Anitha Das Ravindranath

Anitha Das Ravindranath 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 functionalized weather-resistant and slow-decaying geotextiles
    Patent number: 11313074
    Abstract: Processes for making weather resistant, slow-decaying, durable natural fiber/coir geotextiles produce geotextiles having flexibility, permeability, light weight and cost-effective characteristics. In this process an in situ chemical grafting using a mixture of Cashew Nut Shell Liquid and aminoalkyl trialkoxysilanes with cellulose was done followed by curing in presence of sunlight, UV light or heat. The developed product showed durability and strength more than that of natural fiber/fabric and retaining natural fiber/fabric/geotextiles characteristics. The geotextiles have delayed bio-deterioration having wider long-term end use/applications. This process of making durable geotextiles is eco-friendly and retains the desired characteristic.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: April 26, 2022
    Assignee: Council of Scientific & Industrial Research
    Inventors: Vadakkethonippurathu Sivankuttynair Prasad, Padinjareveetil Anju, Methalayil Brahmakumar, Anitha Das Ravindranath, Sebastian Sumy
  • PROCESS FOR THE PREPARATION OF FUNCTIONALIZED WEATHER-RESISTANT AND SLOW-DECAYING GEOTEXTILES
    Publication number: 20210054564
    Abstract: Processes for making weather resistant, slow-decaying, durable natural fiber/coir geotextiles produce geotextiles having flexibility, permeability, light weight and cost-effective characteristics. In this process an in situ chemical grafting using a mixture of Cashew Nut Shell Liquid and aminoalkyl trialkoxysilanes with cellulose was done followed by curing in presence of sunlight, UV light or heat. The developed product showed durability and strength more than that of natural fiber/fabric and retaining natural fiber/fabric/geotextiles characteristics. The geotextiles have delayed bio-deterioration having wider long-term end use/applications. This process of making durable geotextiles is eco-friendly and retains the desired characteristic.
    Type: Application
    Filed: August 21, 2020
    Publication date: February 25, 2021
    Inventors: Vadakkethonippuathu Sivankuttynair Prasad, Padinjareveetil Anju, Methalayil Brahmakumar, Anitha Das Ravindranath, Sebastian Sumy