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. 20, 2018
Filed:
Feb. 27, 2013
Applicants:
Bay Materials Llc, Menlo Park, CA (US);
Ray F. Stewart, Menlo Park, CA (US);
Inventor:
Ray F Stewart, Redwood City, CA (US);
Assignee:
BAY MATERIALS LLC, Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61C 13/08 (2006.01); A61C 7/08 (2006.01); A61K 6/00 (2006.01); B32B 27/20 (2006.01); C08L 67/02 (2006.01); C09K 11/06 (2006.01); B29L 31/00 (2006.01); B29C 51/12 (2006.01);
U.S. Cl.
CPC ...
A61C 13/082 (2013.01); A61C 7/08 (2013.01); A61K 6/0005 (2013.01); B32B 27/20 (2013.01); C08L 67/02 (2013.01); C09K 11/06 (2013.01); B29C 51/12 (2013.01); B29L 2031/7536 (2013.01);
Abstract
Polymeric shells which fit over natural teeth to change the perceived color of the teeth, and optionally to provide orthodontic support. The shells are prepared by thermoforming selected polymeric sheets which contain optical additives; the optical additives cause the combination of the shell and the teeth to have a desired appearance. The shell preferably has transparency of greater than 75%, particularly greater than 85%.