Inventor · disambiguated record
William J. Johnston
Also filed as: JOHNSTON WILLIAM J
5 granted patents·166 citations·filing 1979–2003
81Inventor score
Top patents by PatentIndex Score
5 records- 0194US4364761ACeramic filters for diesel exhaust particulates and methods for makingGEN MOTORS CORP·Filed 1981·Granted Dec 21, 1982·127 cites·9 claims
- 0284US4231342ADiesel fuel heat recovery system and control valve thereforGEN MOTORS CORP·Filed 1979·Granted Nov 4, 1980·28 cites·3 claims
- 0353US7124906B2Apparatus and method for protecting floating roof tanks from the effects of lightning strikesCHEVRON USA INC·Filed 2003·Granted Oct 24, 2006·3 cites·21 claims
- 0436US5489842AMethod and apparatus for determining the rotational position of a magnetic rotor relative to current carrying coils utilizing magnetic coupling between coilsDELCO ELECTRONICS CORP·Filed 1993·Granted Feb 6, 1996·5 cites·9 claims
- 0528US5347213AAir core gauge method and apparatus with reduced power dissipationDELCO ELECTRONICS CORP·Filed 1992·Granted Sep 13, 1994·3 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →