Inventor

COOK EWELL

US4 patents

⚠️ This page may combine multiple inventors who share the name “COOK EWELL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

VERIFICATION TECHNOLOGIES INC

2 patents

US6952392B2Oct 4, 2005

Laser reactive dyes for DVD copy protection system

VERIFICATION TECHNOLOGIES INC40 citations88

US7176308B2Feb 13, 2007

Processes for preparing novel methylene blue derivative

VERIFICATION TECHNOLOGIES INC13 citations81

SUN CHEMICAL CORP

1 patent

US7914703B2Mar 29, 2011

Poly(oxyalkylene)ated colorants and their use as fluorescent security taggants

SUN CHEMICAL CORP1 citations48

SCHWARTZ RUSSELL

1 patent

US8211333B2Jul 3, 2012

Poly(oxyalkylene)ated colorants and their use as fluorescent security taggants

SCHWARTZ RUSSELL1 citations42