Patents by Inventor Margarita E. del Valle

Margarita E. del Valle 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 the preparation of derivatives of 2-pyrrole acetic acid with anti-inflammatory activity
    Patent number: 4465843
    Abstract: The derivatives of 2-pyrrole-acetic acid having the formula: ##STR1## in which R.sub.1 is methyl or ethyl and X is hydrogen or chlorine, have a powerful anti-inflammatory action.These derivatives are prepared from ethyl 3,5-diethoxycarbonyl-4-methyl-2-pyrrole-acetate by alkylation, saponification, esterification, decarboxylation, benzoylation and saponification.
    Type: Grant
    Filed: November 12, 1982
    Date of Patent: August 14, 1984
    Assignee: Laboratories Pharmedical SA
    Inventor: Margarita E. del Valle