Inventor · disambiguated record
Stephen P. Johnston
Also filed as: JOHNSTON STEPHEN · JOHNSTON STEPHEN P
11 granted patents·1 pending application·210 citations·filing 1979–2010
91Inventor score
Top patents by PatentIndex Score
12 records- 0192US4262216AFloat switchSJ ELECTRO SYSTEMS INC·Filed 1979·Granted Apr 14, 1981·41 cites·11 claims
- 0288US4652802AAlternator circuit arrangement useful in liquid level control systemSJ ELECTRO SYSTEMS INC·Filed 1986·Granted Mar 24, 1987·78 cites·6 claims
- 0374US8753553B2Methods for forming injected molded parts and in-mold sensors thereforKAZMER DAVID·Filed 2009·Granted Jun 17, 2014·5 cites·37 claims
- 0469US4572934AMercury switchSJ ELECTRO SYSTEMS INC·Filed 1984·Granted Feb 25, 1986·15 cites·15 claims
- 0566US5087801ASphere-actuated float switchSJ ELECTRO SYSTEMS INC·Filed 1990·Granted Feb 11, 1992·17 cites·12 claims
- 0666US4302641AFloat switches with wide differentialSJ ELECTRO SYSTEMS INC·Filed 1980·Granted Nov 24, 1981·14 cites·5 claims
- 0763US4291261AElectrical load control circuit useful in liquid level control systemsSJ ELECTRO SYSTEMS INC·Filed 1979·Granted Sep 22, 1981·16 cites·4 claims
- 0861US7704417B2Heated mold toolingBAUSCH & LOMB·Filed 2008·Granted Apr 27, 2010·0 cites·24 claims
- 0960US5142108ASphere-actuated float switchSJ ELECTRO SYSTEMS INC·Filed 1991·Granted Aug 25, 1992·14 cites·22 claims
- 1057US4529854AMercury switchSJ ELECTRO SYSTEMS INC·Filed 1984·Granted Jul 16, 1985·10 cites·15 claims
- 1152US8262952B2Molds for production of ophthalmic devicesLAWTON BRUCE E·Filed 2007·Granted Sep 11, 2012·0 cites·16 claims
- 1249US2010164129A1Heated Mold ToolingBAUSCH & LOMB·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →