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:
Nov. 15, 2002
Applicants:
Douglas Scott Dunn, Maplewood, MN (US);
Jeffrey Michael Florczak, Austin, TX (US);
Jeffrey Bruce Hill, Stillwater, MN (US);
Harvey William Kalweit, Burnsville, MN (US);
Inventors:
Douglas Scott Dunn, Maplewood, MN (US);
Jeffrey Michael Florczak, Austin, TX (US);
Jeffrey Bruce Hill, Stillwater, MN (US);
Harvey William Kalweit, Burnsville, MN (US);
Assignee:
3M Innovative Properties Co., St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B006/02 ;
U.S. Cl.
CPC ...
Abstract
The invention relates to inducing a refractive index change in the glass substrate of a polymer coated optical device by using a high numeric aperture lens to focus a femtosecond laser beam through the polymeric coating to the substrate without damaging the polymeric coating.