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Inventor

Gregory L. Hupfer

Inventor
Jackson, WI, US

Overview

2→
Patents
1991–2014
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 2 as inventor

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

F02Bprimary
F02BInternal-combustion piston engines33%
F01MLubricating of machines or engines in general17%
F01PCooling of machines or engines in general17%
F02NStarting of combustion engines17%
Y10TTechnical subjects covered by former us classification17%
PatentTitleYear
8,656,883'Recoil starter assembly for an engine'20144,996,956'Breather apparatus for internal combustion engines'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2014Patents assigned to BRIGGS & STRATTON CORP (2)· patent assignee history
1991Based in West Bend, WI, US· patent location history
2014Patents assigned to GARTZKE CHAD J (1)· patent assignee history
2014Patents assigned to HUPFER GREGORY L (1)· patent assignee history
2014Patents assigned to RAASCH JASON J (1)· patent assignee history
2014Patents assigned to TIEFENTHALER CARL (1)· patent assignee history
2014Based in Jackson, WI, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BRIGGS & STRATTON CORP21991–2014
GARTZKE CHAD J12014
HUPFER GREGORY Lself12014
RAASCH JASON J12014
TIEFENTHALER CARL12014
Locations
LocationPatentsSpan
Jackson, WI, US12014
West Bend, WI, US11991