Processes for purification of silicon tetrafluoride Grant US-7943108-B2 United States of America 17 May 2011
Slip containing zirconium dioxide and aluminum oxide and shaped body obtainable therefrom Grant US-7700034-B2 United States of America 20 Apr 2010
PROCESS FOR THE PRODUCTION OF LARGE SIZED BODIES SERVING AS LINING, ESPECIALLY FOR A SODA-L… Application EP-0479253-A3 European Patent Office 29 Apr 1992
Process for the production of large sized bodies serving as lining, especially for a soda-l… Application EP-0479253-A2 European Patent Office 08 Apr 1992