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:
Mar. 27, 2018
Filed:
Apr. 17, 2017
Saint-gobain Ceramics & Plastics, Inc., Worcester, MA (US);
John Walter Locher, Amherst, NH (US);
Steven Anthony Zanella, Dublin, NH (US);
Ralph Lampson MacLean, Jr., Manchester, NH (US);
Herbert Ellsworth Bates, Peterborough, NH (US);
SAINT-GOBAIN CERAMICS & PLASTICS, INC., Worcester, MA (US);
Abstract
Various single crystals are disclosed including sapphire. The single crystals have desirable geometric properties, including a width not less than about 15 cm and the thickness is not less than about 0.5 cm. The single crystal may also have other features, such as a maximum thickness variation, and as-formed crystals may have a generally symmetrical neck portion, particularly related to the transition from the neck to the main body of the crystal. Methods and for forming such crystals and an apparatus for carrying out the methods are disclosed as well.