Patents by Inventor Mita Adhya

Mita Adhya 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).

  • 4-phosphonomethyl-2-hydroxy-2-oxo-1,4,2-oxazaphosphorinane N-oxide and water-soluble salts thereof
    Patent number: 4977292
    Abstract: This invention relates to novel organic phosphonate compounds and more particularly to the compound 4-phosphonomethyl-2-hydroxy-2-oxo-1,4,2-oxazaphosphonrinane N-oxide and water soluble salts thereof. These compounds are useful as water treatment agents which can be employed for the control of scale and/or corrosion control.
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: December 11, 1990
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Chih M. Hwa, John A. Kelly, Mita Adhya
  • Ethoxylated N,N-bis-phosphonomethyl 2-(hydroxy)ethylamine N-oxides and water-soluble salts thereof
    Patent number: 4973744
    Abstract: This invention relates to novel organic phosphonate compounds, and more particularly to ethoxylated N,N-bis-phosphonomethyl 2-(hydroxy) ethylamine N-oxides and their water soluble salts. These novel organic phosphonates are useful as water treatment agents which can be employed for the control of scale and/or corrosion.
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: November 27, 1990
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Chih M. Hwa, John A. Kelly, Mita Adhya