Inventor · disambiguated record
Randy Johnston
Also filed as: JOHNSTON RANDY · JOHNSTON RANDY S
5 granted patents·115 citations·filing 1992–2010
81Inventor score
Top patents by PatentIndex Score
5 records- 0187US5362073AComposite seal for rotary cone rock bitsSMITH INTERNATIONAL·Filed 1992·Granted Nov 8, 1994·59 cites·12 claims
- 0277US8857933B2Ink supply reservoirCAMPION KEVIN·Filed 2010·Granted Oct 14, 2014·4 cites·20 claims
- 0374US7866810B2Ink jet printerHEWLETT PACKARD DEVELOPMENT CO·Filed 2007·Granted Jan 11, 2011·7 cites·15 claims
- 0455USRE36452EComposite seal for rotary cone rock bitsSMITH INTERNATIONAL·Filed 1996·Granted Dec 21, 1999·37 cites·12 claims
- 0537US5825394AThermal print head calibration and operation method for fixed imaging elementsLASERMASTER CORP·Filed 1996·Granted Oct 20, 1998·8 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →