Jonathan Douglas Callaghan

City:

Edmonton

Country:

Canada

Published Applications:

Last publication date:

2021-06-10

Top Assignees for applications by Jonathan Douglas Callaghan

The entities that hold a legal rights for patent applications filed by inventor Callaghan Jonathan Douglas:

NOV CANADA ULC 2 Calgary, Canada
NATIONAL OILWELL VARCO, LP 1 Houston, TX United States

Recent patent applications by Callaghan Jonathan Douglas

Jonathan Douglas Callaghan from Edmonton, CA has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2021-06-10

US20210172260A1

Fixed constructions

Drill floor support structures

#2 | 2019-05-16

US20190145197A1

Fixed constructions

System and method for offline standbuilding

#3 | 2009-11-19

US20090283324A1

Fixed constructions

Mobile drilling rig

InventorID:

2501779 ⎘