Patents by Inventor Balarum Gupta

Balarum Gupta 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).

  • Methods for producing amidated or aminated water soluble cellulose acetates
    Patent number: 5502178
    Abstract: A method is disclosed of preparing amidated water soluble cellulose acetates by amidating water soluble cellulose acetate. Methods are also provided for preparing aminated water soluble cellulose acetates of varying plasticities, film- and fiber-forming characteristics, and other properties by methanolysis of naturally-occurring chitin or by amination of water soluble cellulose acetate.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: March 26, 1996
    Assignee: Hoechst Celanese Corp.
    Inventor: Balarum Gupta