Donald Elwin McDowell

City:

Millsap, Texas

Country:

United States

Published Applications:

Last publication date:

2012-09-13

Top Assignees for applications by Donald Elwin McDowell

The entities that hold a legal rights for patent applications filed by inventor McDowell Donald Elwin:

FRANK'S INTERNATIONAL, INC. 3 Houston, TX United States
Antelope Oil Tool & Mfg. Co., LLC 1 Mineral Wells, TX United States

Recent patent applications by McDowell Donald Elwin

Donald Elwin McDowell from Millsap, US has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2012-09-13

US20120227959A1

Fixed constructions

Expandable centralizer for expandable pipe string

#2 | 2011-08-04

US20110186289A1

Fixed constructions

Expandable centralizer for expandable pipe string

#3 | 2008-11-20

US20080283253A1

Fixed constructions

Expandable centralizer for expandable pipe string

InventorID:

3252147 ⎘