Patents by Inventor Sunder S. Rangachari

Sunder S. Rangachari 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).

  • Altering the crystal size distribution of N-(phosphonomethyl) iminodiacetic acid for improved filtration and product quality
    Patent number: 7705178
    Abstract: Improved processes for preparing and crystallizing N-(phosphonomethyl)iminodiacetic acid are provided. The processes include adding N-(phosphonomethyl)iminodiacetic acid seed crystals to N-(phosphonomethyl)iminodiacetic acid reaction solutions. Provided are beds of crystallized N-(phosphonomethyl)iminodiacetic acid having improved permeability and filtration rate and reduced impurities.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: April 27, 2010
    Assignee: Monsanto Technology LLC
    Inventors: Sunder S. Rangachari, Todd C. Friedman, Sherrol Lee Baysdon, David Z. Becher