Patents by Inventor Guiseppe Molteni

Guiseppe Molteni 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).

  • Well cementing method using HMHPG filtrate reducer
    Patent number: 6257336
    Abstract: For controlling filtration loss during the installation of climber cement in a well, the procedure entails the addition of a specific quantity of at least one derivative of galactomannan, hydrophilically and hydrophobically modified, a hydrophobically modified hydroxy propyl guar (HMHPG).
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: July 10, 2001
    Assignees: Institut Francais du Petrole, Societe Lamberti SpA
    Inventors: Annie Audibert, Jean-François Argillier, Ugo Pfeiffer, Guiseppe Molteni