Inventor

STEWART ALBERT M

US3 patents

Patents

3 patents

US5742428AApr 21, 1998

Crystals for ultraviolet light filters

NORTHROP GRUMMAN CORP7 citations71

US5837054ANov 17, 1998

Crystals for ultraviolet light filters

NORTHROP GRUMMAN CORP6 citations68

US5788765AAug 4, 1998

Crystals for ultraviolet light filters

NORTHROP GRUMMAN CORP4 citations59