Patents by Inventor Wulf V. Bonin

Wulf V. Bonin 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).

  • Method of producing hollow, heat-resistant beads
    Patent number: 5562870
    Abstract: Novel hollow beads are characterized in that they contain aluminium phosphates optionally containing boron. They can be produced by first drying, at from 20.degree. to 200.degree. C., reaction products of acid aluminium phosphates (and optionally boric acid) with amines, then comminuting them and finally subjecting them to a heat shock of from 200.degree. to 1200.degree. C. Such hollow beads can be used for a great variety of purposes.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: October 8, 1996
    Assignee: Bayer Aktiengesellschaft
    Inventor: Wulf V. Bonin