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.

Date of Patent:
Jan. 24, 2017

Filed:

Mar. 14, 2014
Applicant:

Saint-gobain Ceramics & Plastics, Inc., Worcester, MA (US);

Inventors:

Marc Ouellette, Nashua, NH (US);

Joseph M. Collins, Dublin, NH (US);

John Walter Locher, Amherst, NH (US);

Guilford L. Mack, III, Manchester, NH (US);

Abbie M. Jennings, Milford, NH (US);

Jan J. Buzniak, Solon, OH (US);

Christopher D. Jones, Amherst, NH (US);

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C30B 15/34 (2006.01); C01F 7/02 (2006.01); C30B 29/20 (2006.01);
U.S. Cl.
CPC ...
C30B 15/34 (2013.01); C01F 7/02 (2013.01); C30B 29/20 (2013.01); Y10T 117/1044 (2015.01); Y10T 428/2976 (2015.01);
Abstract

The present disclosure is directed to an apparatus and method for growing a sapphire sheet via edge-defined film-fed growth (EFG) including an angled heat shield with respect to the a side surface of a die tip. The present disclosure is further directed to an sapphire sheets and batches of such sheets having features such as a particular maximum low spot thickness.


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