Inventor

KNOWLES W RALPH

US6 patents

⚠️ This page may combine multiple inventors who share the name “KNOWLES W RALPH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ELECTROSCAN CORP

2 patents

US5412211AMay 2, 1995

Environmental scanning electron microscope

ELECTROSCAN CORP83 citations94

US5362964ANov 8, 1994

Environmental scanning electron microscope

ELECTROSCAN CORP83 citations94

PHILIPS ELECTRONICS NA

2 patents

US5828064AOct 27, 1998

Field emission environmental scanning electron microscope

PHILIPS ELECTRONICS NA44 citations91

US6025592AFeb 15, 2000

High temperature specimen stage and detector for an environmental scanning electron microscope

PHILIPS ELECTRONICS NA32 citations88

FEI CO

2 patents

US5945672AAug 31, 1999

Gaseous backscattered electron detector for an environmental scanning electron microscope

FEI CO44 citations89

US6979822B1Dec 27, 2005

Charged particle beam system

FEI CO48 citations87