Inventor · disambiguated record
Robert S. Johnson
Also filed as: JOHNSON ROBERT · JOHNSON ROBERT S · JOHNSON ROBERT STOCKTON · JOHNSON SR ROBERT S
24 granted patents·2 pending applications·222 citations·filing 1983–2025
96Inventor score
Files withBRIGGS & STRATTON LLC5BRIGGS & STRATTON CORP4JOHNSON ROBERT S3AMERICAN NATIONAL CAN CO2DINNEAN KEVIN1
Top patents by PatentIndex Score
26 records- 0194US11712649B2Cyclonic air filter assembly for an engineBRIGGS & STRATTON LLC·Filed 2022·Granted Aug 1, 2023·2 cites·20 claims
- 0293US11260328B2Cyclonic air filter assembly for an engineBRIGGS & STRATTON LLC·Filed 2017·Granted Mar 1, 2022·5 cites·20 claims
- 0385US8443429B1Integrated sign onJOHNSON SR ROBERT S·Filed 2010·Granted May 14, 2013·24 cites·10 claims
- 0484US12251655B2Cyclonic air filter assembly for an engineBRIGGS & STRATTON LLC·Filed 2023·Granted Mar 18, 2025·0 cites·13 claims
- 0583US10422730B2Liquid inlet deviceHORIZON TECH INC·Filed 2017·Granted Sep 24, 2019·3 cites·13 claims
- 0679USD280769SSponge mopTHE LIGHTHOUSE FOR THE BLIND INCORPORATED·Filed 1983·Granted Sep 24, 1985·22 cites·1 claims
- 0776US2025153081A1Cyclonic air filter assembly for an engineBRIGGS & STRATTON LLC·Filed 2025·Application pending·0 cites
- 0874USD896945SAir filterBRIGGS & STRATTON CORP·Filed 2020·Granted Sep 22, 2020·5 cites·1 claims
- 0973USD867568SAir filterBRIGGS & STRATTON CORP·Filed 2016·Granted Nov 19, 2019·15 cites·1 claims
- 1072US8408183B2Ignition and fuel shutoff for engineJOHNSON ROBERT·Filed 2009·Granted Apr 2, 2013·7 cites·19 claims
- 1170US5320768AHydroxy ether amine friction modifier for use in power transmission fluids and anti-wear additives for use in combination therewithEXXON CHEMICAL PATENTS INC·Filed 1993·Granted Jun 14, 1994·22 cites·9 claims
- 1269US4983203ACooling device for glass container forming machineAMERICAN NATIONAL CAN CO·Filed 1990·Granted Jan 8, 1991·22 cites·11 claims
- 1366US6749755B2Water separation from solventFiled 2002·Granted Jun 15, 2004·12 cites·12 claims
- 1462US7935536B2System for water removal and solvent evaporationHORIZON TECHNOLOGY INC·Filed 2005·Granted May 3, 2011·2 cites·21 claims
- 1556US5358542AGlass container forming machine including neck ring mold coolingAMERICAN NATIONAL CAN CO·Filed 1992·Granted Oct 25, 1994·14 cites·10 claims
- 1655US8528747B2Solid phase extraction disk and method of manufactureDINNEAN KEVIN·Filed 2010·Granted Sep 10, 2013·1 cites·17 claims
- 1754USD876600SAir filterBRIGGS & STRATTON CORP·Filed 2018·Granted Feb 25, 2020·5 cites·1 claims
- 1854US4516287AAngled roller mopLIGHTHOUSE FOR THE BLIND INC·Filed 1984·Granted May 14, 1985·23 cites·8 claims
- 1945US8124422B2Sample collection system and methodJOHNSON ROBERT S·Filed 2008·Granted Feb 28, 2012·0 cites·8 claims
- 2043US6027638AAutomatic filtration and extraction device and methodFiled 1998·Granted Feb 22, 2000·11 cites·9 claims
- 2143US2014097139A1Solid phase extraction disk holder apparatusJOHNSON ROBERT S·Filed 2013·Application pending·0 cites
- 2241US8313953B2Sample collection system and methodJOHNSON ROBERT S·Filed 2012·Granted Nov 20, 2012·0 cites·20 claims
- 2341US5753105AAutomatic filtration and extraction device and methodFiled 1994·Granted May 19, 1998·9 cites·15 claims
- 2441US5642701AEngine cylinder head assembly having planar and cast componentsBRIGGS & STRATTON CORP·Filed 1996·Granted Jul 1, 1997·9 cites·27 claims
- 2539US11377996B2Muffler with baffle defining multiple chambersBRIGGS & STRATTON LLC·Filed 2018·Granted Jul 5, 2022·0 cites·14 claims
- 2635US6264895B1EvaporatorFiled 1999·Granted Jul 24, 2001·9 cites·28 claims
Join the waitlist — get patent alerts
Get an alert when Robert S. Johnson files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →