Patents by Inventor Richard Bonart

Richard Bonart 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).

  • Fibre fleece of electrostatically spun fibres and methods of making same
    Patent number: 4143196
    Abstract: In a process for the production of fibre filters, the fibre material is sprayed electrostatically from the liquid state and deposited as a fibre fleece on a conductive support. The starting materials used are solutions of high polymers in readily volatile solvents. The filters obtained have substantially improved properties.
    Type: Grant
    Filed: July 7, 1977
    Date of Patent: March 6, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Walter Simm, Claus Gosling, Richard Bonart, Bela VON Falkai
  • Filter made of electrostatically spun fibres
    Patent number: 4069026
    Abstract: In a process for the production of fibre filters, the fibre material is sprayed electrostatically from the liquid state and deposited as a fibre fleece on a conductive support. The starting materials used are solutions of high polymers in readily volatile solvents. The charged filters obtained have substantially improved properties.
    Type: Grant
    Filed: November 15, 1973
    Date of Patent: January 17, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Walter Simm, Claus Gosling, Richard Bonart, Bela VON Falkai