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Inventor profile of:

Donald James Sheen

City:

Leduc

Country:

Canada

Published Applications:

1

Last publication date:

2018-06-14

Top Assignees for applications by Donald James Sheen

The entities that hold a legal rights for patent applications filed by inventor Sheen Donald James:

DIRECTIONAL VIBRATION SYSTEMS INC. 1 Edmonton, Alberta, Canada

Recent patent applications by Sheen Donald James

Donald James Sheen from Leduc, CA has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2018-06-14

US20180163479A1

Fixed constructions

Downhole vibration tool

InventorID:

6502156 ⎘