Patents by Inventor Albert Loewenstein

Albert Loewenstein 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).

  • Spinning preparations for melt spinning synthetic fibers
    Patent number: 4871592
    Abstract: A spinning preparation, for the melt spinning of synthetic fibers, containing a smoothing agent, an emulsifier, a wetting agent, an antistatic agent, and an epoxidized compound containing at least 8 carbon atoms to produce a cohesion promoting effect on the fibers.
    Type: Grant
    Filed: November 13, 1986
    Date of Patent: October 3, 1989
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Albert Loewenstein, Heidi Fiedler