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Inventor

Stephen J. Ryczek

Inventor
Hartland, WI, US

Overview

15→
Patents
2003–2020
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 15 as inventor

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

F02Nprimary
F02NStarting of combustion engines16%
LOC1516%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles13%
B60YIndexing scheme relating to aspects cross-cutting vehicle technology13%
H01HElectric switches13%
F01MLubricating of machines or engines in general6%
G05DSystems for controlling or regulating non-electric variables6%
H05BElectric heating6%
LOC136%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general3%
PatentTitleYear
D0891364Battery2020D0841572Battery20199,488,149'Push button starting system for outdoor power equipment'20168,763,579'Push button starting system for outdoor power equipment'20148,516,985'Push button starting system for outdoor power equipment'20138,171,907'Push button starting system for outdoor power equipment'2012D0626975'Lawn tractor grill and air intake cowl assembly'2010D0622295'Lawn tractor grill'2010D0622292'Lawn tractor'2010RE040548'Engine oil heater'20087,389,853'Muffler for an engine'2008D0536004'Portion of a horizontal-shaft engine'2007D0529924'Cover for a vertical shafted engine'20067,104,233'Engine oil heater'20066,520,141'Rewind cover guard'2003

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003–2020Patents assigned to BRIGGS & STRATTON CORP (15)· patent assignee history
2003–2016Based in Hartland, WI, US· patent location history
2006Based in Harland, WI, US· patent location history
2012–2013Patents assigned to KOENEN ROBERT J (2)· patent assignee history
2012–2013Patents assigned to LYDY BRUCE S (2)· patent assignee history
2012–2013Patents assigned to RYCZEK STEPHEN J (2)· patent assignee history
2012–2013Patents assigned to WEBER STEVEN J (2)· patent assignee history
2019–2020Based in Wauwatosa, WI, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BRIGGS & STRATTON CORP152003–2020
KOENEN ROBERT J22012–2013
LYDY BRUCE S22012–2013
RYCZEK STEPHEN Jself22012–2013
WEBER STEVEN J22012–2013
Locations
LocationPatentsSpan
Hartland, WI, US122003–2016
Wauwatosa, WI, US22019–2020
Harland, WI, US12006