Inventor

HILL DEAN R

US3 patents

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

HILL DEAN R

2 patents

US8488242B2Jul 16, 2013

Optically variable device with diffraction-based micro-optics, method of creating the same, and article employing the same

HILL DEAN R10 citations77

US9666008B2May 30, 2017

Optically variable security device, and article employing same and method for verifying the authenticity of an article

HILL DEAN R7 citations76

OPSEC SECURITY GROUP INC

1 patent

US9234992B2Jan 12, 2016

Optically variable device with diffraction-based micro-optics, method of creating the same, and article employing the same

OPSEC SECURITY GROUP INC17 citations86