Inventor · disambiguated record
Chadwick A. Shaffer
Also filed as: SHAFFER CHADWICK A · SHAFFER CHADWICK AARON
49 granted patents·10 pending applications·899 citations·filing 1998–2024
98Inventor score
Top patents by PatentIndex Score
59 records- 0198US10123478B2Walk power mower with biased handleTHE TORO CO·Filed 2017·Granted Nov 13, 2018·30 cites·20 claims
- 0298US7735188B2Air inlet cover and portable blower/vacuum incorporating sameTORO CO·Filed 2006·Granted Jun 15, 2010·45 cites·21 claims
- 0395US10111381B2Walk power mower with transmission providing both forward and reverse propulsionTHE TORO CO·Filed 2017·Granted Oct 30, 2018·19 cites·23 claims
- 0494US9472992B2Electric motor support structure and power equipment unit incorporating sameTHE TORO CO·Filed 2013·Granted Oct 18, 2016·13 cites·20 claims
- 0594US6442790B1Portable blower/vacuum having air inlet cover attachable to blower tubeTORO CO·Filed 2001·Granted Sep 3, 2002·58 cites·23 claims
- 0694US6158082APortable blower with blower tube noise reductionTORO CO·Filed 1999·Granted Dec 12, 2000·74 cites·32 claims
- 0790US5979013APortable blower with noise reductionTORO CO·Filed 1998·Granted Nov 9, 1999·61 cites·20 claims
- 0889US7257909B2Convertible yard toolTORO CO·Filed 2004·Granted Aug 21, 2007·41 cites·18 claims
- 0989USD461604SHousing for a blower/vacuumTORO CO·Filed 2001·Granted Aug 13, 2002·39 cites·1 claims
- 1089US6059541AAir inlet cover for portable blower/vacuumTORO CO·Filed 1998·Granted May 9, 2000·47 cites·17 claims
- 1188US11464165B2Walk power mower with slidable handle grip movable along a curved path for controlling a variable speed traction driveTHE TORO CO·Filed 2020·Granted Oct 11, 2022·2 cites·21 claims
- 1287US10470378B2Biodegradable horticulture containerSelfeco LLC·Filed 2015·Granted Nov 12, 2019·6 cites·18 claims
- 1387USD556395SHousing for a convertible blower/vacuumTORO CO·Filed 2006·Granted Nov 27, 2007·36 cites·1 claims
- 1486US12402559B2Walk outdoor power equipment unit having handle mounted operational controls using compliant mechanismsTHE TORO CO·Filed 2024·Granted Sep 2, 2025·0 cites·15 claims
- 1586US9420924B2Oscillating airstream nozzle for debris blowerTHE TORO CO·Filed 2015·Granted Aug 23, 2016·6 cites·21 claims
- 1686US8602334B2Debris vacuum with supplemental debris shearing surfaceSVOBODA STEVEN J·Filed 2010·Granted Dec 10, 2013·11 cites·23 claims
- 1784US9131643B2Cord wrap system and portable blower incorporating sameHOFFMAN MICHAEL J·Filed 2012·Granted Sep 15, 2015·8 cites·18 claims
- 1884US6003199AAir concentrator nozzle for portable blowerTORO CO·Filed 1998·Granted Dec 21, 1999·54 cites·9 claims
- 1984US2024415052A1Walk power mower with transmission providing both forward and reverse propulsionTHE TORO CO·Filed 2024·Application pending·0 cites
- 2083US10834871B2Walk power mower with transmission providing both forward and reverse propulsionTHE TORO CO·Filed 2018·Granted Nov 17, 2020·3 cites·17 claims
- 2183US7314096B2Adjustable handle for portable toolTORO CO·Filed 2004·Granted Jan 1, 2008·51 cites·27 claims
- 2282USD820722SPlant potSelfeco LLC·Filed 2016·Granted Jun 19, 2018·18 cites·1 claims
- 2381US6324720B1Portable blower tube noise reductionTORO CO·Filed 2000·Granted Dec 4, 2001·29 cites·35 claims
- 2480US12108701B2Walk power mower with transmission providing both forward and reverse propulsionTHE TORO CO·Filed 2023·Granted Oct 8, 2024·0 cites·14 claims
- 2580US11771004B2Mulch door with sensorTHE TORO CO·Filed 2020·Granted Oct 3, 2023·1 cites·20 claims
- 2679USD642596SSnowthrower power headTORO CO·Filed 2010·Granted Aug 2, 2011·24 cites·1 claims
- 2778USD675232SSnowthrower power headTORO CO·Filed 2012·Granted Jan 29, 2013·22 cites·1 claims
- 2878US6973728B2Filament trimmer with dual triggersTORO CO·Filed 2002·Granted Dec 13, 2005·20 cites·20 claims
- 2978USD483236SFilament trimmerTORO CO·Filed 2003·Granted Dec 9, 2003·22 cites·1 claims
- 3078US2025063984A1Mulch door with sensorTHE TORO CO·Filed 2023·Application pending·0 cites
- 3177US10306831B2Walk power mower having forward and reverse traction driveTHE TORO CO·Filed 2018·Granted Jun 4, 2019·3 cites·15 claims
- 3276US10143318B2Food display and service articlesSelfeco LLC·Filed 2015·Granted Dec 4, 2018·3 cites·16 claims
- 3375US12069984B2Walk outdoor power equipment unit having handle mounted operational controls using compliant mechanismsTHE TORO CO·Filed 2021·Granted Aug 27, 2024·0 cites·20 claims
- 3475US9872442B2Biodegradable shield for plant protectionSelfeco LLC·Filed 2015·Granted Jan 23, 2018·2 cites·20 claims
- 3575USD747050SHousing of a portable blower/vacuumTORO CO·Filed 2014·Granted Jan 5, 2016·19 cites·1 claims
- 3674US11849670B2Walk power mower with slidable handle grip movable along a curved path for controlling a variable speed traction driveTHE TORO CO·Filed 2022·Granted Dec 26, 2023·0 cites·16 claims
- 3772USD775999SPlant potSelfeco LLC·Filed 2015·Granted Jan 10, 2017·12 cites·1 claims
- 3872USD524824SConvertible yard toolTORO CO·Filed 2004·Granted Jul 11, 2006·17 cites·1 claims
- 3972USD519127SHousing for convertible yard toolTORO CO·Filed 2004·Granted Apr 18, 2006·17 cites·1 claims
- 4072US6742263B2Filament trimmer with adjustable cutoff bladeFiled 2002·Granted Jun 1, 2004·18 cites·17 claims
- 4171US10716264B2Biodegradable horticulture containerSelfeco LLC·Filed 2014·Granted Jul 21, 2020·2 cites·21 claims
- 4271USD642595SSnowthrower handleTORO CO·Filed 2010·Granted Aug 2, 2011·18 cites·1 claims
- 4371US7266893B1Filament trimmer with dual triggersTORO CO·Filed 2005·Granted Sep 11, 2007·9 cites·2 claims
- 4470USD676876SHandle for a ground-working implementTORO CO·Filed 2012·Granted Feb 26, 2013·16 cites·1 claims
- 4570US2025169395A1Power equipment unit with ground speed responsive to force applied to a handle gripTHE TORO CO·Filed 2024·Application pending·0 cites
- 4667USD566491SVegetation trimmerTORO CO·Filed 2006·Granted Apr 15, 2008·15 cites·1 claims
- 4764US11653594B2Walk power mower with transmission providing both forward and reverse propulsionTHE TORO CO·Filed 2020·Granted May 23, 2023·0 cites·12 claims
- 4863US2025344635A1Lawn mower height-of-cut system with integral striping rollerTHE TORO CO·Filed 2023·Application pending·0 cites
- 4960US11895945B2Assembly for adding ambient air to the cutting chamber of a walk power mowerTHE TORO CO·Filed 2020·Granted Feb 13, 2024·0 cites·24 claims
- 5052USD820150SPlant potSelfeco LLC·Filed 2016·Granted Jun 12, 2018·4 cites·1 claims
Showing the top 50 of 59 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →