Patents by Inventor Walter Blueml

Walter Blueml 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).

  • Organopolysiloxane resins
    Patent number: 6552151
    Abstract: The invention relates to organopolysiloxane resins which have a glass transition temperature of more than 60° C. and OH contents of from 1 percent to 8 percent by weight.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: April 22, 2003
    Assignee: Wacker-Chemie GmbH
    Inventors: Thomas Köhler, Walter Blüml
  • Method of preparing alkoxy silanes
    Patent number: 6005132
    Abstract: Higher alkoxysilanes are prepared efficiently and in high yield by transesterification of lower C.sub.1-4 alkoxysilanes with C.sub.6-38 higher alcohols at reduced pressure with continuous removal of lower alcohol. The products have little or no lower alkoxy content, and are free of coloring impurities.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: December 21, 1999
    Assignee: Wacker-Chemie GmbH
    Inventors: Richard Weidner, Walter Blueml