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:
Nov. 19, 2019
Filed:
Mar. 28, 2007
Applicants:
Marcus Schaefer, Traunstein, DE;
Reiner Pech, Neuoetting, DE;
Inventors:
Marcus Schaefer, Traunstein, DE;
Reiner Pech, Neuoetting, DE;
Assignee:
WACKER CHEMIE AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B07B 1/28 (2006.01); B07B 1/00 (2006.01); B07B 13/00 (2006.01); B07B 13/04 (2006.01);
U.S. Cl.
CPC ...
B07B 1/00 (2013.01); B07B 13/003 (2013.01); B07B 13/04 (2013.01);
Abstract
Polycrystalline silicon fragments are sorted into defined particle fractions in a flexible manner independent of initial particle size distribution and desired fraction size by a first mechanical screening into a fine fraction and residual fraction, followed by optoelectronic sorting of the residual fraction.