Inventor · disambiguated record
Robert R. Hay
Also filed as: HAY ROBERT R · JUVE RONALD A
8 granted patents·418 citations·filing 1978–1998
91Inventor score
Files withHEWLETT PACKARD CO8
Top patents by PatentIndex Score
8 records- 0193US4716423ABarrier layer and orifice plate for thermal ink jet print head assembly and method of manufactureHEWLETT PACKARD CO·Filed 1986·Granted Dec 29, 1987·70 cites·7 claims
- 0293US4590482ANozzle test apparatus and method for thermal ink jet systemsHEWLETT PACKARD CO·Filed 1983·Granted May 20, 1986·66 cites·2 claims
- 0392US4694308ABarrier layer and orifice plate for thermal ink jet printhead assemblyHEWLETT PACKARD CO·Filed 1986·Granted Sep 15, 1987·65 cites·17 claims
- 0492US4535343AThermal ink jet printhead with self-passivating elementsHEWLETT PACKARD CO·Filed 1983·Granted Aug 13, 1985·109 cites·11 claims
- 0583US5239431AHead lift limiter for a disk driveHEWLETT PACKARD CO·Filed 1992·Granted Aug 24, 1993·41 cites·4 claims
- 0677US6239879B1Non-contacting communication and power interface between a printing engine and peripheral systems attached to replaceable printer componentHEWLETT PACKARD CO·Filed 1998·Granted May 29, 2001·28 cites·16 claims
- 0776US4408865ACorona discharge device for electrophotographic charging and potential levelingHEWLETT PACKARD CO·Filed 1981·Granted Oct 11, 1983·21 cites·5 claims
- 0869US4197493AElectrostatic voltmeterHEWLETT PACKARD CO·Filed 1978·Granted Apr 8, 1980·18 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →