Inventor · disambiguated record
David H. Holkeboer
Also filed as: HOLKEBOER DAVID H
7 granted patents·166 citations·filing 1985–2000
88Inventor score
Technology areasH01J
Top patents by PatentIndex Score
7 records- 0183US5852270AMethod of manufacturing a miniature quadrupole using electrode-discharge machiningLEYBOLD INFICON INC·Filed 1997·Granted Dec 22, 1998·45 cites·6 claims
- 0281US4672203ATwo stage valve for use in pressure converterLEYBOLD HERAEUS INFICON·Filed 1985·Granted Jun 9, 1987·32 cites·4 claims
- 0374USRE38138EMethod for linearization of ion currents in a quadrupole mass analyzerLEYBOLD INFICON INC·Filed 2000·Granted Jun 10, 2003·10 cites·10 claims
- 0470US5889281AMethod for linearization of ion currents in a quadrupole mass analyzerLEYBOLD INFICON INC·Filed 1997·Granted Mar 30, 1999·21 cites·6 claims
- 0570US5808308ADual ion sourceLEYBOLD INFICON INC·Filed 1997·Granted Sep 15, 1998·24 cites·7 claims
- 0668US5850084AIon lens assembly for gas analysis systemLEYBOLD INFICON INC·Filed 1997·Granted Dec 15, 1998·22 cites·18 claims
- 0755US5834770AIon collecting electrode for total pressure collectorLEYBOLD INFICON INC·Filed 1997·Granted Nov 10, 1998·12 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →