Patents by Inventor Guglielmo Piumetti

Guglielmo Piumetti 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).

  • Soundproofing panels for automobile applications and manufacturing processes therefor
    Patent number: 5266143
    Abstract: Composite soundproofing panels for applications in the automotive sector have a plastic layer bonded to at least one porous material layer. The plastic layer has a composition which contains a first elastomeric material, a high density filler material, a plasticizer and a second elastomeric material. The plastic layer is bonded to at least one self-supporting, premoldable layer of porous material while maintaining a constant thickness within +10%.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: November 30, 1993
    Assignee: C.S.P. Centro Studi e Prototipi S.r.l.
    Inventors: Sergio Albera, Guglielmo Piumetti