Inventor

NELSON CLARA E

US5 patents

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

TRANSITIONS OPTICAL INC

4 patents

US7262295B2Aug 28, 2007

Indeno-fused photochromic naphthopyrans, naphthols and photochromic articles

TRANSITIONS OPTICAL INC55 citations95

US7557208B2Jul 7, 2009

Naphthols useful for preparing indeno-fused photochromic naphthopyrans

TRANSITIONS OPTICAL INC21 citations92

US7166357B2Jan 23, 2007

Photochromic articles that activate behind ultraviolet radiation blocking transparencies and methods for preparation

TRANSITIONS OPTICAL INC52 citations92

US7517982B2Apr 14, 2009

Naphthols useful for preparing indeno-fused photochromic naphthopyrans

TRANSITIONS OPTICAL INC1 citations51

PPG IND OHIO INC

1 patent

US7320826B2Jan 22, 2008

Photochromic articles with reduced temperature dependency and methods for preparation

PPG IND OHIO INC65 citations95