Inventor · disambiguated record
Ronald A. Zweifel
Also filed as: ZWEIFEL RONALD A · ZWEIFEL RONALD ALVIN
9 granted patents·2 pending applications·389 citations·filing 1989–2008
91Inventor score
Top patents by PatentIndex Score
11 records- 0194US5037518AApparatus and method for generating hydrogen and oxygen by electrolytic dissociation of waterPACKARD INSTRUMENT CO INC·Filed 1989·Granted Aug 6, 1991·137 cites·8 claims
- 0293US5365783ACapacitive sensing system and techniquePACKARD INSTRUMENT CO INC·Filed 1993·Granted Nov 22, 1994·134 cites·10 claims
- 0388US7411508B2Methods and systems for locating and identifying labware using radio-frequency identification tagsPERKINEMER LAS INC·Filed 2006·Granted Aug 12, 2008·41 cites·39 claims
- 0485US8115599B2Methods and systems for locating and identifying labware radio-frequency identification tagsHARAZIN RICHARD R·Filed 2008·Granted Feb 14, 2012·27 cites·24 claims
- 0584US7191647B2Method and apparatus to reject electrical interference in a capacitive liquid level sensor systemPERKINELMER LAS INC·Filed 2004·Granted Mar 20, 2007·24 cites·23 claims
- 0680US7836763B2Method and apparatus to reject electrical interference in a capacitive liquid level sensor systemPERKINELMER LAS INC·Filed 2008·Granted Nov 23, 2010·5 cites·18 claims
- 0776US7387023B2Method and apparatus to reject electrical interference in a capacitive liquid level sensor systemPERKINELMER LAS INC·Filed 2007·Granted Jun 17, 2008·9 cites·12 claims
- 0873US7823447B2Method and apparatus for sensing a liquid levelPERKINELMER LAS INC·Filed 2007·Granted Nov 2, 2010·10 cites·25 claims
- 0950US7353688B2Methods and systems for determining a position of a probePERKINELMER LAS INC·Filed 2005·Granted Apr 8, 2008·2 cites·17 claims
- 1047US2004185569A1Controlling microdrop dispensing apparatusFiled 2003·Application pending·0 cites
- 1141US2002106308A1Microdrop dispensing apparatusFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →