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.:

US 6814440 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 09, 2004

Filed:

Jan. 10, 2002
Applicant:
Inventors:

Giuseppe Iori, Reggio Emilia, IT;

Graziano Marusi, Parma, IT;

Gian Giuseppe Giani, Parma, IT;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02C 7/10 ;
U.S. Cl.
CPC ...
G02C 7/10 ;
Abstract

A lens having a substrate, a metal layer uniformly covering one side of the substrate, a first dielectric layer uniformly covering the metal layer, and a second dielectric layer gradiently covering only a portion of the first dielectric layer.


Find Patent Forward Citations

Iori, Giuseppe. (2004). Lenses having chromatic effect (U.S. Patent No. 6814440). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6814440

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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