Jeffrey Lee Bertelsen

City:

Coldspring, Texas

Country:

United States

Published Applications:

Last publication date:

2016-11-24

Recent patent applications by Bertelsen Jeffrey Lee

Jeffrey Lee Bertelsen from Coldspring, US has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2016-11-24

US20160340997A1

Fixed constructions

INSERT SLOT OF A SLIP ASSEMBLY USED IN DRILLING AND METHOD OF FORMING THE INSERT SLOT

#2 | 2014-10-23

US20140311732A1

Fixed constructions

Variable diameter pipe clamp apparatus and torque module therefore

#3 | 2014-10-09

US20140299376A1

Fixed constructions

Low maintenance iron roughneck system with replaceable modular components thereof

#4 | 2014-05-01

US20140119821A1

Mechanical engineering

INSERT SLOT AND METHOD OF FORMING AN INSERT SLOT IN A ROTARY HAND SLIP

InventorID:

744513 ⎘