Inventor · disambiguated record
William J. Fies
Also filed as: FIES JR WILLIAM J · FIES WILLIAM J
6 granted patents·361 citations·filing 1976–1996
87Inventor score
Technology areasH01J
Files withFINNIGAN CORP6
Top patents by PatentIndex Score
6 records- 0197US4755670AFourtier transform quadrupole mass spectrometer and methodFINNIGAN CORP·Filed 1986·Granted Jul 5, 1988·145 cites·19 claims
- 0296US4214160AMass spectrometer system and method for control of ion energy for different massesFINNIGAN CORP·Filed 1976·Granted Jul 22, 1980·72 cites·3 claims
- 0392US4032782ATemperature stable multipole mass filter and method thereforFINNIGAN CORP·Filed 1976·Granted Jun 28, 1977·37 cites·5 claims
- 0488US5756996AIon source assembly for an ion trap mass spectrometer and methodFINNIGAN CORP·Filed 1996·Granted May 26, 1998·62 cites·6 claims
- 0588US4650999AMethod of mass analyzing a sample over a wide mass range by use of a quadrupole ion trapFINNIGAN CORP·Filed 1984·Granted Mar 17, 1987·33 cites·10 claims
- 0662US4816675AQuadrupole mass filter with unbalanced R.F. voltageFINNIGAN CORP·Filed 1987·Granted Mar 28, 1989·12 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →