Patents by Inventor Karl Heinz Schall

Karl Heinz Schall 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 for producing acylphosphine oxide solids
    Patent number: 7776109
    Abstract: The present invention relates to a process for the preparation of solid acylphosphine oxides by converting an acylphosphine oxide which is in the form of a melt or in dispersed form into the solid state of aggregation with mechanical stress, shearing/internal agitation of the melt.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: August 17, 2010
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Bertlein, Karl Heinz Schall, Matthias Maase, Joerg Heilek, Dieter Baumann, Hermann Ascherl