Patents by Inventor Sisir K. Adhikari

Sisir K. Adhikari 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 producing N,N-dialkyl substituted fatty acids amides
    Patent number: 8536355
    Abstract: Disclosed herein is a process for producing Dialkyl substituted fatty acids amides. More particularly the present invention provides a process for producing pure form of N,N-dimethylamide of aliphatic carboxylic acids, wherein the aliphatic carboxylic acid is Octanoic Acid and Hexanoic Acid. The disclosed process comprises condensing Alkanoyl Chloride with dilute solution of Dialkylamine at a temperature of about 8 to 12° C. and isolating the crude by salting out the reaction mixture employing Sodium Chloride and distilling the same under vacuum.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: September 17, 2013
    Inventors: Ramachandran Radhakrishnan, Sisir K. Adhikari
  • PROCESS FOR PRODUCING N,N-DIALKYL SUBSTITUTED FATTY ACIDS AMIDES
    Publication number: 20090093647
    Abstract: Disclosed herein is a process for producing Dialkyl substituted fatty acids amides. More particularly the present invention provides a process for producing pure form of N,N-dimethylamide of aliphatic carboxylic acids, wherein the aliphatic carboxylic acid is Octanoic Acid and Hexanoic Acid. The disclosed process comprises condensing Alkanoyl Chloride with dilute solution of Dialkylamine at a temperature of about 8 to 12° C. and isolating the crude by salting out the reaction mixture employing Sodium Chloride and distilling the same under vacuum.
    Type: Application
    Filed: September 22, 2005
    Publication date: April 9, 2009
    Inventors: Ramachandran Radhakrishnan, Sisir K. Adhikari