Patents by Inventor Andre Coin

Andre Coin 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).

  • Light concrete and method of preparing the same
    Patent number: 4126470
    Abstract: A light concrete prepared from a mixture of Portland cement, cellular aggregate, and an admixture including a melamine-formaldehyde condensate carrying sulfo groups for reducing the need for mixing water, an alkaline earth metal stearate as a water repelling material, and polyethyleneglycol has greater mechanical strength at lower density than an otherwise identical concrete containing only two ingredients of the admixture.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: November 21, 1978
    Assignees: Suddeutsche Kalkstickstoff-Werke Aktiengesellschaft, Societe Auxiliaire d'Entreprises
    Inventors: Hans-Rudiger Braun, Hans-Gunter Rosenbauer, Andre Coin, Roland Davril