Patents by Inventor Torbjorn Grenness

Torbjorn Grenness 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).

  • Synthetic rubber solutions
    Patent number: 3933723
    Abstract: The invention relates to a solution for the production of rubber-like articles by dipping, said solution comprising an elastomer of the block-copolymer type extended with 5-100 percent by weight of an oil-extender, the oil-extended elastomer being dissolved in 200-1200 percent by weight of a solvent mainly consisting of aliphatic hydrocarbons.The invention further relates to the production of said articles from said solvents, and to the produced articles.
    Type: Grant
    Filed: November 11, 1974
    Date of Patent: January 20, 1976
    Inventor: Torbjorn Grenness