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:
Feb. 08, 2005
Filed:
Jan. 30, 2002
Hans-peter Sommer, Munich, DE;
Michael Voegt, Gilching, DE;
Gerd-peter Scherg, Baldham, DE;
Manfred Melzig, Wessling, DE;
Hans-Peter Sommer, Munich, DE;
Michael Voegt, Gilching, DE;
Gerd-Peter Scherg, Baldham, DE;
Manfred Melzig, Wessling, DE;
Rodenstock GmbH, Munich, DE;
Abstract
A photochromic synthetic resin (i.e., plastic) object characterized by a permanently increased contrast relative to the contrast of prior art photochromic synthetic resin objects, such that the photochromic synthetic resin object according to the invention exhibits improved contrast in the stationary states and in every intervening phase, including both darkening and lightening. The photochromic synthetic resin objects of the invention are particularly useful as lenses for eyeglasses, especially for sports glasses.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile