Inventor · disambiguated record
Ralph E. Johnson
Also filed as: JOHNSON RALPH E · JOHNSON RALPH EMSLEY
13 granted patents·1 pending application·700 citations·filing 1987–2002
95Inventor score
Files withMAG INSTR INC14
Top patents by PatentIndex Score
14 records- 0197US4823242ADouble switch miniature flashlightMAG INSTR INC·Filed 1988·Granted Apr 18, 1989·145 cites·12 claims
- 0296US5008785ARechargeable miniature flashlightMAG INSTR INC·Filed 1987·Granted Apr 16, 1991·88 cites·30 claims
- 0394US5121308AMiniature flashlight with two switchesMAG INSTR INC·Filed 1990·Granted Jun 9, 1992·93 cites·7 claims
- 0491US5528472ARechargeable miniature flashlightMAG INSTR INC·Filed 1995·Granted Jun 18, 1996·48 cites·2 claims
- 0591US4885668AHeat shieldMAG INSTR INC·Filed 1988·Granted Dec 5, 1989·72 cites·16 claims
- 0690US6296368B1Rechargeable miniature flashlightMAG INSTR INC·Filed 2000·Granted Oct 2, 2001·39 cites·4 claims
- 0790USD303107SMiniature flashlight rechargerMAG INSTR INC·Filed 1987·Granted Aug 29, 1989·29 cites·1 claims
- 0886US6457840B2Rechargeable miniature flashlightMAG INSTR INC·Filed 2001·Granted Oct 1, 2002·27 cites·5 claims
- 0986US5267130ARechargeable miniature flashlightMAG INSTR INC·Filed 1993·Granted Nov 30, 1993·34 cites·1 claims
- 1081US5836672ARechargeable miniature flashlightMAG INSTR INC·Filed 1996·Granted Nov 17, 1998·35 cites·4 claims
- 1177US5455752ARechargeable miniature flashlightMAG INSTR INC·Filed 1993·Granted Oct 3, 1995·33 cites·4 claims
- 1277US5193898ARechargeable miniature flashlightMAG INSTR INC·Filed 1992·Granted Mar 16, 1993·32 cites·1 claims
- 1374US6086219ARechargeable miniature flashlightMAG INSTR INC·Filed 1998·Granted Jul 11, 2000·25 cites·4 claims
- 1444US2003043576A1Rechargeable miniature flashlightMAG INSTR INC·Filed 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →