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Inventor

Gregory Kaufman

Inventor
Green Oaks, IL, US

Overview

2→
Patents
1997–2006
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 2 as inventor

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

E01Hprimary
E01HStreet cleaning50%
F01LCyclically operating valves for machines or engines50%
PatentTitleYear
7,077,444'Two handled shovel'20065,694,893'Outward opening valve system for an engine'1997

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997Patents assigned to CATERPILLAR INC (1)· patent assignee history
1997Based in Metamora, IL, US· patent location history
2006Patents assigned to KAUFMAN GREGORY (1)· patent assignee history
2006Patents assigned to SEMUSHKIN URI IVANOVICH (1)· patent assignee history
2006Based in Green Oaks, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CATERPILLAR INC11997
KAUFMAN GREGORYself12006
SEMUSHKIN URI IVANOVICH12006
Locations
LocationPatentsSpan
Green Oaks, Illinois, US12006
Metamora, Illinois, US11997