Inventor

TURPEN JOSEPH D

US3 patents

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

TRANSITIONS OPTICAL LTD

2 patents

US10371866B2Aug 6, 2019

Optical element having a coating for enhanced visibility of a mark and method for making the optical element

TRANSITIONS OPTICAL LTD6 citations69

US12304991B2May 20, 2025

Photochromic article

TRANSITIONS OPTICAL LTD0 citations43

TRANSITIONS OPTICAL INC

1 patent

US11084236B2Aug 10, 2021

Method for preparing an optical element which colors in a non-uniform linear pattern

TRANSITIONS OPTICAL INC1 citations58