Patents by Inventor Marie-Françoise Lepeltier

Marie-Françoise Lepeltier 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).

  • Method and device for treating a liquid medium
    Patent number: 6540922
    Abstract: A device for treating liquid medium has an ultrasound emitter located relative to a compartment of a container holding a liquid medium and a microbubble emitter located relative to the compartment. The ultrasound emitter emits high-frequency ultrasound between about 200 KHz and 10 MHz. The microbubble emitter emits bubbles with an average diameter of less than 1 mm.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: April 1, 2003
    Assignee: Ashland, Inc.
    Inventors: Eric De Meulenaer Cordemans, Baudouin Hannecart, Marie-Françoise Lepeltier, Yves Canivet