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:
Jun. 12, 2001
Filed:
Nov. 16, 1998
Applicant:
Inventors:
Gimtong Teowee, Tucson, AZ (US);
Pierre-Marc Allemand, Tucson, AZ (US);
John P. Cronin, Tucson, AZ (US);
Juan Carlos Lopez Tonazzi, Tucson, AZ (US);
Anoop Agrawal, Tucson, AZ (US);
Assignee:
Donnelly Corporation, Holland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/03 ;
U.S. Cl.
CPC ...
G02F 1/03 ;
Abstract
A photochromic device is provided which allows the user to leave the device in a high transmissive state even when exposed to a source of radiation and to control the degree of darkening achieved while exposed to the source of radiation.