Inventor

COFFEY DAVID W

US4 patents

Patents

4 patents

US5742428AApr 21, 1998

Crystals for ultraviolet light filters

NORTHROP GRUMMAN CORP7 citations71

US6097481AAug 1, 2000

Bang-bang laser spot tracker

NORTHROP GRUMMAN CORP12 citations70

US5837054ANov 17, 1998

Crystals for ultraviolet light filters

NORTHROP GRUMMAN CORP6 citations68

US5788765AAug 4, 1998

Crystals for ultraviolet light filters

NORTHROP GRUMMAN CORP4 citations59