Inventor
WIEDERKEHR MARCUS
SE3 patents
Patents
3 patentsUS7810937B2Oct 12, 2010
Control of an automatic darkening filter
3M INNOVATIVE PROPERTIES CO19 citations88
US7637622B2Dec 29, 2009
Control of an automatic darkening filter
3M INNOVATIVE PROPERTIES CO13 citations79
US8047664B2Nov 1, 2011
Control of an automatic darkening filter
3M INNOVATIVE PROPERTIES CO4 citations58