Patents Represented by Law Firm Grace Bonner Monsanto Company Arnold, White & Durkee
  • Patent number: 5688994
    Abstract: A process for the preparation of N-phosphonomethyliminodiacetic acid is disclosed. The process comprises simultaneously infusing into a reaction mixture water, a source of iminodiacetic acid, a source of formaldehyde, and a source of phosphorous acid and strong acid.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: November 18, 1997
    Assignee: Monsanto Company
    Inventors: Sherrol Lee Baysdon, David Lee Taxter