Patents by Inventor Jean L. Desjoyaux

Jean L. Desjoyaux 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).

  • Liquid filtering device for swimming pools in particular
    Patent number: 5202020
    Abstract: The device is made from a textile article (1), made up of at least one layer of non-woven material capable of filtering, the said article is designed to make up a pocket or sleeve, open at one end and closed at the other, this article being mounted inside an open support (2) communicating with the liquid and connected to a liquid suction and delivery system in order for the article (1) to filter the liquid.
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: April 13, 1993
    Inventors: Jean L. Desjoyaux, Catherine Desjoyaux epouse Jandros, Pierre L. Desjoyaux
  • Combined pump, filter and access steps for a swimming pool
    Patent number: D337149
    Type: Grant
    Filed: June 7, 1991
    Date of Patent: July 6, 1993
    Inventors: Piere L. Desjoyaux, Jean L. Desjoyaux, Catherine Jandros