Inventor
HERON BERNARD MARK
GB11 patents
⚠️ This page may combine multiple inventors who share the name “HERON BERNARD MARK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JAMES ROBINSON LTD
4 patentsUS6294112B1Sep 25, 2001
Red coloring hyperchromic 3H-naphtho[2,1-B]pyrans
JAMES ROBINSON LTD22 citations89
US6248264B1Jun 19, 2001
Neutral coloring photochromic 2H-naphtho[1,2-b] pyrans and heterocyclic pyrans
JAMES ROBINSON LTD50 citations89
US6303673B1Oct 16, 2001
Photochromic compounds
JAMES ROBINSON LTD19 citations80
US6387512B1May 14, 2002
Grey coloring photochromic fused pyrans
JAMES ROBINSON LTD8 citations68
ESSILOR INT
4 patentsUS10563120B2Feb 18, 2020
Electrochromic compounds and optical articles containing them
ESSILOR INT1 citations59
US9823534B2Nov 21, 2017
Electrochromic single and two-core viologens and optical articles containing them
ESSILOR INT1 citations50
US10730855B2Aug 4, 2020
Electrochromic compounds and optical articles containing them
ESSILOR INT0 citations45
US10179768B2Jan 15, 2019
Electrochromic two-core viologen derivatives and optical articles containing them
ESSILOR INT0 citations37
AIKEN STUART
3 patentsUS8703978B2Apr 22, 2014
Photochromic dichroic naphtho-pyrans and optical articles containing them
AIKEN STUART4 citations63
US8436184B2May 7, 2013
6-(biphenyl-ester)-3H-naphtho[2,1-b]pyrans as photochromic dichroic dyes and optical article containing them
AIKEN STUART1 citations48
US9249136B2Feb 2, 2016
3H-naphtho [2,1-B] pyrans as photochromic dichroic dyes and optical article containing them
AIKEN STUART0 citations37