Inventor · disambiguated record
Roger B. Johnston
Also filed as: JOHNSTON ROGER B
3 granted patents·86 citations·filing 1992–1996
72Inventor score
Top patents by PatentIndex Score
3 records- 0181US5301436ACartridge runout fixtureJOHNSTON ROGER B·Filed 1992·Granted Apr 12, 1994·57 cites·4 claims
- 0258US5378499AMethod of applying abrasives to bullets for use in pressure (fire) lapping of gun barrelsNECO NOSTALGIA ENTERPRISES CO·Filed 1992·Granted Jan 3, 1995·26 cites·10 claims
- 0327US5819875AApparatus and method for applying dry lubricant to cartridge case necksFiled 1996·Granted Oct 13, 1998·3 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →