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. 02, 2004
Filed:
Dec. 06, 2001
Paul Douglas Becherer, Belleville, IL (US);
Robert L. Davis, Flossmoor, IL (US);
Other;
Abstract
Contact lens designed to ameliorate undesired effects of ophthalmological procedures or trauma. In one embodiment, the lens includes a clear center for positioning over the center of a dilated pupil with a surrounding darkened zone to restrict the entry of light into pupil. In another embodiment, the lens includes a corrective anterior curvature and a zoned posterior curvature having a substantially flat central area and an adjacent zone of the same or shorter radius of curvature designed to align with a post-refractive cornea curvature to correct refractive light and to focus the light on the retina in unsuccessful refractive surgery and not collapse or wrinkle on the cornea.