David Frederick Chalus

City:

Edmonton

Country:

Canada

Published Applications:

Last publication date:

2021-01-28

Top Assignees for applications by David Frederick Chalus

The entities that hold a legal rights for patent applications filed by inventor Chalus David Frederick:

NATIONAL OILWELL VARCO, LP 1 Houston, TX United States
NOV CANADA ULC 1 Calgary, Canada

Recent patent applications by Chalus David Frederick

David Frederick Chalus from Edmonton, CA has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2021-01-28

US20210025263A1

Fixed constructions

Multi-well bop cellar trailer

#2 | 2017-09-07

US20170254181A1

Fixed constructions

Multi-well bop cellar trailer

InventorID:

1976536 ⎘