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Inventor

Terry Lievestro

Inventor
West Chester, OH, US

Overview

3→
Patents
2005–2009
Patent span
Performing operations
Primary field (CPC B)

Patents· 3 as inventor

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

B23Hprimary
B23HWorking of metal by the action of a high concentration of electric current on a workpiece using an electrode which takes the place of a tool60%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids20%
Y10TTechnical subjects covered by former us classification20%
PatentTitleYear
7,479,214'ECM trepan of bars'20097,192,260'Progressive cavity pump/motor stator, and apparatus and method to manufacture same by electrochemical machining'20076,866,769'Drive head and ECM method and tool for making same'2005

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005Patents assigned to GEN ELECTRIC (1)· patent assignee history
2005–2009Based in West Chester, OH, US· patent location history
2007–2009Patents assigned to LEHR PREC INC (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
LEHR PREC INC22007–2009
GEN ELECTRIC12005
Locations
LocationPatentsSpan
West Chester, OH, US32005–2009