Patents by Inventor Alain Menard

Alain Menard 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 preparing fluorescein quinoid form
    Patent number: 10745373
    Abstract: The present invention relates to a process for preparing fluorescein quinoid form of Formula (I): Furthermore, the present invention relates to a new solid fluorescein form and a process for the preparation thereof. The present invention also relates to the use of said new solid fluorescein form in the synthesis of fluorescein quinoid form.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: August 18, 2020
    Assignee: Delmar Chemicals Inc.
    Inventors: Nicolas Tesson, Eduard Bugan, Nadejda Spassova, Alain Menard