Inventor · disambiguated record
Helmut Spruck
Also filed as: SPRUCK HELMUT · SPRUECK HELMUT
3 granted patents·27 citations·filing 1984–1990
67Inventor score
Technology areasH01J
Top patents by PatentIndex Score
3 records- 0168US4574178AElectron gunLEYBOLD HERAEUS GMBH & CO KG·Filed 1984·Granted Mar 4, 1986·16 cites·12 claims
- 0248US5117085ACathode holder for an electron beam generatorPTR PRAEZISIONSTECH GMBH·Filed 1990·Granted May 26, 1992·10 cites·11 claims
- 0325US4622453AElectron beam gun mounting on a work chamberLEYBOLD HERAEUS GMBH & CO KG·Filed 1984·Granted Nov 11, 1986·1 cites·10 claims
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