William John Darnell

City:

Cypress, Texas

Country:

United States

Published Applications:

Last publication date:

2018-12-13

Top Assignees for applications by William John Darnell

The entities that hold a legal rights for patent applications filed by inventor Darnell William John:

PetroQuip Energy Services, LLC 3 Waller, TX United States
PETROQUIP ENERGY SERVICES, LLP 2 Houston, TX United States
PACKERS PLUS ENERGY SERVICES, INC. 1 , Canada

Recent patent applications by Darnell William John

William John Darnell from Cypress, US has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2018-12-13

US20180355696A1

Fixed constructions

Downhole completion tool

#2 | 2017-11-23

US20170335659A1

Fixed constructions

DOWNHOLE COMPLETION TOOL

#3 | 2017-11-09

US20170321519A1

Fixed constructions

Downhole completion tool

#4 | 2017-08-24

US20170241236A1

Fixed constructions

DOWNHOLE COMPLETION TOOL

#5 | 2014-10-09

US20140299329A1

Fixed constructions

Downhole completion tool

#6 | 2013-10-29

US13857101

Downhole tool

InventorID:

926468 ⎘