Chemistry of inorganic compounds – Silicon or compound thereof – Elemental silicon
Reexamination Certificate
2011-04-12
2011-04-12
Hendrickson, Stuart (Department: 1736)
Chemistry of inorganic compounds
Silicon or compound thereof
Elemental silicon
C427S008000, C422S146000
Reexamination Certificate
active
07922990
ABSTRACT:
A fluidized bed process for the production of polycrystalline silicon granules supplies, in addition to reaction gas, a gas containing 99.5 to 95 mol. percent hydrogen and 0.5 to 5 mol. percent gaseous silicon compounds, and the reactor wall is maintained at the same or a higher temperature than the reaction zone, such that the deposition of silicon on reactor internals is minimized.
REFERENCES:
patent: 4684513 (1987-08-01), Iya
patent: 4784840 (1988-11-01), Gautreaux et al.
patent: 4851297 (1989-07-01), Allen et al.
patent: 4868013 (1989-09-01), Allen
patent: 5077028 (1991-12-01), Age
patent: 5104633 (1992-04-01), Sakaguchi et al.
patent: 5165908 (1992-11-01), Van Slooten et al.
patent: 5374413 (1994-12-01), Kim et al.
patent: 5382412 (1995-01-01), Kim et al.
patent: 6007869 (1999-12-01), Schreieder et al.
patent: 6827786 (2004-12-01), Lord
patent: 7029632 (2006-04-01), Weidhaus et al.
patent: 2002/0081250 (2002-06-01), Lord
patent: 2002/0102850 (2002-08-01), Kim et al.
patent: 3910343 (1989-10-01), None
patent: 4327308 (1995-02-01), None
patent: 19948395 (2001-05-01), None
patent: 1223145 (2002-07-01), None
patent: 0832312 (2003-01-01), None
patent: 6127914 (1994-05-01), None
patent: 06-127914 (1994-10-01), None
Patent Abstract Corresponding to DE 19948395 A1.
Patent Abstract Corresponding to DE 4327308 C2.
Patent Abstract Corresponding to DE 3910343 A1.
Patent Abstract Corresponding to JP 6127914.
Hauswirth Rainer
Hertlein Harald
Brooks & Kushman P.C.
Hendrickson Stuart
Rump Richard M
Wacker Chemie AG
LandOfFree
Method and device for producing granulated polycrystalline... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and device for producing granulated polycrystalline..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for producing granulated polycrystalline... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2722445