Patents by Inventor Marcel Hartmann

Marcel Hartmann 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).

  • FLEXIBLE FOAMS COMPRISING ADDITIVES FOR IMPROVING HARDNESS
    Publication number: 20230049261
    Abstract: A polyurethane foam-forming composition comprising a polyether functional silicone additive with an active hydrogen atom. The addition of the polyether functional silicone additive to a foam-forming composition for a flexible foam increases the hardness of the resulting foam without adversely affecting other properties of the foam.
    Type: Application
    Filed: July 28, 2021
    Publication date: February 16, 2023
    Inventors: Lorenzo Fiore, Lijun Feng, Marcel Hartmann, Wen Huang, Antonie-Gabriel Kiss, Alberto Giovanni Mellé