Patents by Inventor Sita Devi Pothuri

Sita Devi Pothuri 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).

  • Method for the synthesis and evaluation of porphyrins, calix (4) pyrroles and allied macrocycles
    Patent number: 6712972
    Abstract: The present invention provides an innovative method based on reaction cum separation on single plate concept for efficient evaluation of porphyrins, calix(4)pyrroles and allied macrocycles by in-situ synthesis from pyrrole with aromatic aldehydes and ketones over zeolite based molecular sieve catalysts as sorbents in thin layer chromatography (TLC) using microwave heating. This glass backed zeolite coated TLC plate acts as a micro reactor as well as separator for the in-situ synthesis and chromatographic separation of macrocycles. The process is simple, economical, rapid, selective and finds a possible application in high throughput parallel synthesis and screening on a single micro plate employing microwave irradiation.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: March 30, 2004
    Assignee: Council of Scientific and Industrial Research
    Inventors: Sita Devi Pothuri, Kondapuram Vijaya Raghavan, Shivanand Janardan Kulkarni, Radha Kishan Motkuri, Radha Rani Vippagunta, Mamidanna Rama Venkata Satyanarayana Murty
  • Method for the synthesis and evaluation of porphyrins, calix (4) pyrroles and allied macrocycles
    Publication number: 20030183577
    Abstract: The present invention provides an innovative method based on reaction cum separation on single plate concept for efficient evaluation of porphyrins, calix(4)pyrroles and allied macrocycles by in-situ synthesis from pyrrole with aromatic aldehydes and ketones over zeolite based molecular sieve catalysts as sorbents in thin layer chromatography (TLC) using microwave heating. This glass backed zeolite coated TLC plate acts as a micro reactor as well as separator for the in-situ synthesis and chromatographic separation of macrocycles. The process is simple, economical, rapid, selective and finds a possible application in high throughput parallel synthesis and screening on a single micro plate employing microwave irradiation.
    Type: Application
    Filed: March 28, 2002
    Publication date: October 2, 2003
    Inventors: Sita Devi Pothuri, Kondapuram Vijaya Raghavan, Shivanand Janardan Kulkarni, Radha Kishan Motkuri, Radha Rani Vippagunta, Mamidanna Rama Venkata Satyanarayana Murty