Patents by Inventor Vanka Uma Maheshwara Sarma

Vanka Uma Maheshwara Sarma 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 production of hydrazine hydrate
    Patent number: 11225413
    Abstract: A process for the production of concentrated aqueous solutions of hydrazine hydrate includes preparation of hydrazine hydrate by a ketazine method using 50-70% hydrogen peroxide, recyclable solid acetamide and ammonium acetate activator for ketazine formation, and catalyst-free hydrolysis of ketazine to provide aqueous solutions of hydrazine hydrate in an energy efficient manner.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: January 18, 2022
    Assignees: Council of Scientific & Industrial Research, Gujarat Alkalies and Chemicals Limited
    Inventors: Pradeep Kumar Mamidpelliwar, Ravindranath Kajjam, Radhakrishna Madabhushi, Ashutosh Ugle, Shobha Rajendra Pathak, Vijaya Garikapati Murthy, Thyagarajan Srinivasan, Gannoji Veeraiah, Shyam Sunder Mamilla, Vanka Uma Maheshwara Sarma, Parthasaradhy Yellamraju, Sunil Sinha, Manish Babulal Shah, Nikhilkumar Navinchandra Shah, Shailesh Ashabhai Patel, Gautam Punjabhai Patel
  • AN IMPROVED PROCESS FOR PRODUCTION OF HYDRAZINE HYDRATE
    Publication number: 20190367365
    Abstract: A process for the production of concentrated aqueous solutions of hydrazine hydrate includes preparation of hydrazine hydrate by a ketazine method using 50-70% hydrogen peroxide, recyclable solid acetamide and ammonium acetate activator for ketazine formation, and catalyst-free hydrolysis of ketazine to provide aqueous solutions of hydrazine hydrate in an energy efficient manner.
    Type: Application
    Filed: September 28, 2017
    Publication date: December 5, 2019
    Inventors: Pradeep Kumar Mamidpelliwar, Ravindranath Kajjam, Radhakrishna Madabhushi, Ashutosh Ugle, Shobha Rajendra Pathak, Vijaya Garikapati Murthy, Thyagarajan Srinivasan, Gannoji Veeraiah, Shyam Sunder Mamilla, Vanka Uma Maheshwara Sarma, Parthasaradhy Yellamraju, Sunil Sinha, Manish Babulal Shah, Nikhilkumar Navinchandra Shah, Shailesh Ashabhai Patel, Gautam Punjabhai Patel