LexDanaLexDanabeta
Inventor

Todd W. Johnson

Inventor
Wauwatosa, WI, US

Overview

101→
Patents
1989–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 101 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H02Jprimary
H02JElectric power networks18%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy18%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution16%
B25FCombination or multi-purpose tools not otherwise provided for10%
G01RMeasuring electric variables8%
Y10TTechnical subjects covered by former us classification5%
B01DSeparation3%
H02HEmergency protective circuit arrangements3%
LOC133%
Y02TClimate change mitigation technologies related to transportation2%
PatentTitleYear
10,862,327Lithium-based battery pack for a hand held power tool202010,714,948Method and system for charging multi-cell lithium-based battery packs2020D0883914Valve stem202010,593,991Method and system for battery protection202010,569,389Pliers202010,566,810Lithium-based battery pack for a hand held power tool202010,539,247Valve stem assemblies202010,536,022Lithium-based battery pack for a hand held power tool2020D0869235Smoker device201910,431,857Lithium-based battery pack201910,374,443Method and system for charging multi-cell lithium-based battery packs201910,224,566Method and system for battery protection201910,214,869Outdoor power equipment including electric wheel motors and controls201910,218,194Lithium-based battery pack for a hand held power tool201910,141,614Battery pack201810,137,559Pliers201810,097,026Lithium-based battery pack for a hand held power tool201810,008,864Method and system for charging multi-cell lithium-based battery packs2018D0820041Telescopic smoker device20189,941,718Lithium-based battery pack for a hand held power tool20189,819,051'Method and system for battery protection'20179,793,583'Lithium-based battery pack'20179,687,965'Pliers'20179,680,325'Lithium-based battery pack for a hand held power tool'20179,673,648'Lithium-based battery pack for a hand held power tool'20179,660,293'Method and system for battery protection'20179,379,569'Lithium-battery pack for a hand held power tool'20169,368,842'Battery pack'20169,312,721'Lithium-based battery pack for a hand held power tool'20169,273,857'Electrical component including tool and battery charger ports'20169,118,189'Method and system for charging multi-cell lithium-based battery packs'20159,112,248'Method and system for battery protection'20159,048,515'Battery pack'20159,018,903'Lithium-based battery pack for a hand held power tool'2015D0721539'Tubular smoker device'20158,822,067'Battery Pack'20148,661,948'Pliers'20148,653,790'Battery pack'20148,525,479'Method and system for charging multi-cell lithium-based batteries'20138,487,585'Battery pack'20138,471,532'Battery pack'20138,450,971'Lithium-based battery pack for a hand held power tool'20138,436,584'Method and system for battery protection'20138,269,459'Lithium-based battery pack for a high current draw, hand held power tool'20128,207,702'Lithium-based battery pack for a hand held power tool'20128,154,249'Battery pack'2012D0649399'Smoking device'2011D0647759'Smoking device'20118,018,198'Method and system for charging multi-cell lithium-based batteries'20117,999,510'Lithium-based battery pack for a high current draw, hand held power tool'20117,952,326'Method and system for battery protection employing over-discharge control'20117,944,173'Lithium-based battery pack for a high current draw, hand held power tool'20117,944,181'Battery pack'2011D0627203'Power tool'20107,794,593'Cross-flow membrane module'20107,791,318'Battery pack'20107,714,538'Battery pack'20107,667,437'Method and system for protection of a lithium-based multicell battery pack including a heat sink'20107,659,696'Battery charger and assembly'20107,589,500'Method and system for battery protection'20097,557,535'Lithium-based battery for a hand held power tool'20097,554,290'Lithium-based battery pack for a hand-held power tool'20097,517,455'Liquid-liquid extraction system and method'20097,508,167'Method and system for charging multi-cell lithium-based batteries'20097,504,804'Method and system for protection of a lithium-based multicell battery pack including a heat sink'20097,492,125'Power tools, battery chargers and batteries'20097,492,124'Method and system for battery protection'20097,425,816'Method and system for pulse charging of a lithium-based battery'2008D0564444'Battery'20087,342,381'Method and system for battery protection employing sampling of measurements'20087,323,847'Method and system of charging multi-cell lithium-based batteries'20087,321,219'Method and system for battery charging employing a semiconductor switch'20087,262,580'Method and system for charging multi-cell lithium-based batteries'20077,253,585'Battery pack'2007D0539221'Battery'2007D0538618'Portion of a power tool'20077,176,654'Method and system of charging multi-cell lithium-based batteries'20077,164,257'Method and system for protection of a lithium-based multicell battery pack including a heat sink'20077,157,882'Method and system for battery protection employing a selectively-actuated switch'20077,157,883'Method and system for battery protection employing averaging of measurements'20077,122,709'Method for obtaining ethanol'20067,105,089'Liquid—liquid extraction system and method'2006D0526613'Battery charger'2006D0513730'Battery'2006D0507235'Battery charger caddy'2005D0504395'Battery charger'2005D0501823'Battery'2005D0494130'Battery'20046,752,889'Contoured layer channel flow filtration media'2004D0487426'Battery latch'2004D0484850'Battery'20046,471,746'Electrofiltration process'20026,454,839'Electrofiltration apparatus'20026,280,824'Contoured layer channel flow filtration media'20015,702,603'Self-sealing liquid filter'19975,614,105'Cartridge filters with insoluble enzyme particulates contained thereon'19975,478,466'Cartridge filters with insoluble enzyme particulates contained thereon'19955,468,847'Method of isolating and purifying a biomacromolecule'19954,893,487'Locking device for boat motor'19904,877,526'Flexible filter bag and method of fabrication'19894,863,602'Flexible filter element employing filtering sheets formed with bypass openings'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2010Based in Minneapolis, MN, US· patent location history
1989–1997Based in St. Paul, MN, US· patent location history
1990–2014Patents assigned to JOHNSON TODD W (10)· patent assignee history
2001–2010Patents assigned to 3M INNOVATIVE PROPERTIES CO (8)· patent assignee history
2004–2020Patents assigned to MILWAUKEE ELECTRIC TOOL CORP (78)· patent assignee history
2004–2020Based in Wauwatosa, WI, US· patent location history
2011–2020Patents assigned to JOHNSON TODD (8)· patent assignee history
2011–2019Based in Savage, MN, US· patent location history
2012–2013Patents assigned to MEYER GARY D (8)· patent assignee history
2020Based in Berryville, VA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MILWAUKEE ELECTRIC TOOL CORP782004–2020
JOHNSON TODD Wself101990–2014
3M INNOVATIVE PROPERTIES CO82001–2010
JOHNSON TODDself82011–2020
MEYER GARY D82012–2013
Locations
LocationPatentsSpan
Wauwatosa, WI, US792004–2020
Minneapolis, Minnesota, US121989–2010
Savage, Minnesota, US52011–2019
Berryville, Virginia, US22020
St. Paul, Minnesota, US21989–1997