Ronald W Stanley

US Patent:

20030229156, Dec 11, 2003

Filed:

Jun 6, 2003

Appl. No.:

10/455912

Inventors:

Ronald Stanley - Hawthorne CA, US

International Classification:

C03C017/00
C09D005/00

US Classification:

523/160000, 523/161000

Abstract:

A dye-based fingerprint ink composition includes a fatty-acid based dye dispersed in a chemical composition which includes approximately equal parts of (a) 2 phenoxyethanol, (b) propylene glycol, (c) a carrier and (d) glyceryl monoricinoleate. The composition further includes a viscosity adjustment chemical selected from the polyvinyl family of chemicals, the viscosity adjustment chemical operative to add accuracy to said dye-based fingerprint ink formulation and provide improved ridgeline definition. The fatty-acid based dye comprises less than approximately two percent (2%), by weight, of the fingerprint ink composition yet still provides acceptable quality and contrast levels.

US Patent:

20060235109, Oct 19, 2006

Filed:

Sep 30, 2005

Appl. No.:

11/240263

Inventors:

Ronald Stanley - Hawthorne CA, US

International Classification:

C03C 17/00

US Classification:

523160000, 106031270, 524300000

Abstract:

A dye-based fingerprint ink formulation includes a fatty-acid based dye dispersion including a fatty-acid based dye dispersed in a chemical composition having approximately equal first formulation parts of (a) 2 phenoxyethanol, (b) propylene glycol and (c) oleic acid and approximately equal second formulation parts of (d) sorbitan monopalmitate and (e) myristic acid, the second formulation parts being approximately one-half the amount of the first formulation parts, with the fatty-acid based dye being less than approximately one percent (1%), by weight, of the fatty-acid based dye dispersion.