Patents by Inventor Gabrielle Claud

Gabrielle Claud 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 eliminating the diethanolamine present in triethanolamine and preparation process for purified triethanolamine
    Patent number: 5292958
    Abstract: Processes for eliminating the diethanolamine present in triethanolamine and the preparation of triethanolamine or compositions containing triethanolamine substantially free from diethanolamine in which the triethanolamine containing diethanolamine is treated with glyoxal in a molar ratio of glyoxal to diethanolamine greater than or equal to 1, then if desired the triethanolamine obtained or the composition containing it is isolated, and their use.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: March 8, 1994
    Assignee: Societe Francaise Hoechst
    Inventors: Gabrielle Claud, Alain Blanc