Inventor

LOK PHEI

AU3 patents

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

LOK PHEI

2 patents

US10328737B2Jun 25, 2019

High refractive index coatings and their use in the protection of surface relief structures

LOK PHEI5 citations63

US10185065B2Jan 22, 2019

Optically variable device

LOK PHEI1 citations55

INNOVIA SECURITY PTY LTD

1 patent

US9904249B2Feb 27, 2018

Optical security device having a high refractive index layer between adjacent diffraction elements which have upper portions uncovered by the high refractive index layer

INNOVIA SECURITY PTY LTD0 citations47