Inventor
LIEBL HELMUT
7 patents
⚠️ This page may combine multiple inventors who share the name “LIEBL HELMUT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MAX PLANCK GESELLSCHAFT
6 patentsUS4255661AMar 10, 1981
Electrostatic emission lens
MAX PLANCK GESELLSCHAFT85 citations94
US4978855ADec 18, 1990
Electron microscope for investigation of surfaces of solid bodies
MAX PLANCK GESELLSCHAFT33 citations86
US4551599ANov 5, 1985
Combined electrostatic objective and emission lens
MAX PLANCK GESELLSCHAFT26 citations80
US3935453AJan 27, 1976
Quadrupole field mass analyser
MAX PLANCK GESELLSCHAFT8 citations71
US4843239AJun 27, 1989
Compact double focussing mass spectrometer
MAX PLANCK GESELLSCHAFT2 citations60
US4246481AJan 20, 1981
Contact ionization apparatus
MAX PLANCK GESELLSCHAFT3 citations60