Paul D Cote

US Patent:

48697788, Sep 26, 1989

Filed:

Jul 20, 1987

Appl. No.:

7/075397

Inventors:

Paul F. Cote - Milford NH

Assignee:

Gardoc, Inc. - Milford NH

International Classification:

C23F 102

US Classification:

156635

Abstract:

A process is described for the microdemetalization of an aluminized mylar film, the steps including the printing of a micropattern of a caustic resistant, U. V. curable resin on the aluminum surface, etching of the exposed aluminum with a warm saturated caustic solution, followed immediately by rinsing the patterned surface with an acidic solution to neutralize the caustic and stop the etching. Micropatterns having line widths as small as 0. 2 mils may be formed by the process.

US Patent:

62559486, Jul 3, 2001

Filed:

Dec 1, 1998

Appl. No.:

9/203449

Inventors:

Gary R. Wolpert - Mason NH
Gerald J. Gartner - Hollis NH
Stephen B. Curdo - Hollis NH
Paul F. Cote - Hollis NH

Assignee:

Technical Graphics Security Products, LLC - Milford NH

International Classification:

G08B 1314

US Classification:

3405728

Abstract:

A security device having multiple security features is used with an item, such as a secure document, ticket, label or tag, to authenticate the item and/or encode data pertaining to the item. One example of the security device includes a carrier substrate, a metallic layer disposed on the carrier substrate, and a magnetic layer disposed on the metallic layer in substantial registration with at least a portion of the metallic layer, thereby providing both metallic security features and magnetic security features. The metallic layer and the magnetic layer also form graphic or visually identifiable indicia on the carrier substrate to provide a visual security feature. According to one method, the metallic layer is applied to the carrier substrate, the magnetic layer is applied to the metallic layer, and the layers are etched to form the graphic indicia. The magnetic layer can, in one embodiment, include a magnetic chemical resist that is printed on the metallic layer in the form of the graphic indicia. The magnetic security features use one or more magnetic characteristics, such as the level of magnetism and decay rate characteristic of soft magnetics, to authenticate and/or to encode data.

US Patent:

50432010, Aug 27, 1991

Filed:

Apr 3, 1989

Appl. No.:

7/331837

Inventors:

Paul F. Cote - Milford NH

Assignee:

Gar Doc, Inc. - Milford NH

International Classification:

B32B 300

US Classification:

428195

Abstract:

A process is described for the microdemetalization of an aluminized mylar film, the steps including the printing of a micropattern of a caustic resistant, U. V. curable resin on the aluminum surface, etching of the exposed aluminum with a warm saturated caustic solution, followed immediately by rinsing the patterned surface with an acidic solution to neutralize the caustic and stop the etching. Micropatterns having line widths as small as 0. 2 mils may be formed by the process.