The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 2007
Filed:
May. 27, 2004
Applicants:
Fritz Schwertfeger, Burghausen, DE;
Jens Guenster, Clausthal-Zellerfeld, DE;
Sven Engler, Clausthal-Zellerfeld, DE;
Juergen Heinrich, Clausthal-Zellerfeld, DE;
Inventors:
Fritz Schwertfeger, Burghausen, DE;
Jens Guenster, Clausthal-Zellerfeld, DE;
Sven Engler, Clausthal-Zellerfeld, DE;
Juergen Heinrich, Clausthal-Zellerfeld, DE;
Assignee:
Wacker Chemie AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03B 19/01 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for producing an SiOshaped body which is at least partially vitrified, wherein an amorphous, porous SiOgreen body is sintered or vitrified by contactless heating by means of radiation, while avoiding contamination to the SiOshaped body with foreign atoms, wherein the radiation used is the beam of a laser at a subatmospheric pressure below 1000 mbar.