Patents by Inventor Hans D. Schaefer

Hans D. Schaefer 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).

  • Fixing large zeolite and zeolite-like molecular sieve crystals on moldings
    Patent number: 5413975
    Abstract: Large zeolite and zeolite-like molecular sieve crystals of from 3 to 500 .mu.m are fixed on moldings by a process in which an adhesion promoter is used or the moldings are softened.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: May 9, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Mueller, Wolfgang Hoelderich, Hans D. Schaefer, Ulrich Eiden, Norbert Woessner