Patents by Inventor Clara Pioventini

Clara Pioventini 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).

  • Leakproofing article for building use
    Patent number: 6344253
    Abstract: The present invention concerns a manufactured article impervious to water, the water being rain water, water coming from a water-bearing stratum, and/or from concrete. The manufactured article of the invention may be used in building of habitations, factories, tunnels, and/or submarine structures and the like, the article comprising a leakproofing material. The manufactured article further includes a coating constituted by a film made of a material, the water-solubility of which is kept under control, the film delaying the leakproofing material hydration process for a predetermined period of time from between 1 and 30 days.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: February 5, 2002
    Inventor: Clara Pioventini