Inventor

GUTH BRADLEY D

US3 patents

Patents

3 patents

US6859309B2Feb 22, 2005

Optical filters for manipulating spectral power distribution in accelerated weathering devices

3M INNOVATIVE PROPERTIES CO11 citations70

US6984058B2Jan 10, 2006

Optical filters comprising opacified portion

3M INNOVATIVE PROPERTIES CO2 citations59

US6906857B2Jun 14, 2005

Optical filters for manipulating spectral power distribution in accelerated weathering devices

3M INNOVATIVE PROPERTIES CO0 citations49