David W. McCulloch

Person

Arlington, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Coiled tubing injector with load sensing tubing guide
- Patent number 9,581,009
- Issue date Feb 28, 2017
- National-Oilwell Varco, L.P.
- Timothy S. Steffenhagen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Coiled tubing injector with limited slip chains
- Patent number 9,458,682
- Issue date Oct 4, 2016
- National-Oilwell Varco, L.P.
- David W. McCulloch
- E21 - EARTH DRILLING MINING
Information Patent Grant
Handler for blowout preventer assembly
- Patent number 9,353,593
- Issue date May 31, 2016
- National-Oilwell Varco, L.P.
- Mike Xiaolei Lu
- E21 - EARTH DRILLING MINING
Information Patent Grant
Coiled tubing injector handler
- Patent number 9,316,067
- Issue date Apr 19, 2016
- National-Oilwell Varco, L.P.
- Mike Xiaolei Lu
- E21 - EARTH DRILLING MINING
Information Patent Grant
Coiled tubing injector with limited slip chains
- Patent number 9,151,122
- Issue date Oct 6, 2015
- National-Oilwell Varco, L.P.
- David W. McCulloch
- E21 - EARTH DRILLING MINING
Information Patent Grant
Charging unit, system and method for activating a wellsite component
- Patent number 8,727,018
- Issue date May 20, 2014
- National-Oilwell Varco, L.P.
- David W. McCulloch
- E21 - EARTH DRILLING MINING
Information Patent Grant
Coiled tubing injector with strain relief
- Patent number 8,701,754
- Issue date Apr 22, 2014
- National-Oilwell Varco, L.P.
- David W. McCulloch
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Coiled tubing injector with limited slip chains
- Patent number 8,544,536
- Issue date Oct 1, 2013
- National-Oilwell Varco, L.P.
- David W. McCulloch
- E21 - EARTH DRILLING MINING
Information Patent Grant
Elevating operator cabin for coiled tubing injector
- Patent number 7,240,726
- Issue date Jul 10, 2007
- Varco I/P, Inc.
- Troy Cain
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Mast for handling a coiled tubing injector
- Patent number 7,077,209
- Issue date Jul 18, 2006
- Varco/IP, Inc.
- David W. McCulloch
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
Coiled Tubing Injector With Limited Slip Chains
- Publication number 20160002987
- Publication date Jan 7, 2016
- National-Oilwell Varco, L.P.
- David W. McCulloch
- E21 - EARTH DRILLING MINING
Information Patent Application
COILED TUBING INJECTOR WITH LOAD SENSING TUBING GUIDE
- Publication number 20150101799
- Publication date Apr 16, 2015
- National-Oilwell Varco, L.P.
- Timothy S. Steffenhagen
- G01 - MEASURING TESTING
Information Patent Application
Coiled Tubing Injector With Limited Slip Chains
- Publication number 20140000865
- Publication date Jan 2, 2014
- National-Oilwell Varco, L.P.
- David W. McCulloch
- E21 - EARTH DRILLING MINING
Information Patent Application
COILED TUBING INJECTOR WITH STRAIN RELIEF
- Publication number 20130333900
- Publication date Dec 19, 2013
- National-Oilwell Varco, L.P.
- David W. McCulloch
- E21 - EARTH DRILLING MINING
Information Patent Application
COILED TUBING INJECTOR WITH LIMITED SLIP CHAINS
- Publication number 20120073833
- Publication date Mar 29, 2012
- David W. McCulloch
- E21 - EARTH DRILLING MINING
Information Patent Application
Elevating operator cabin for coiled tubing injector
- Publication number 20050093340
- Publication date May 5, 2005
- Varco I/P, Inc.
- Troy Cain
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Application
Coiled tubing injector with flow limiter
- Publication number 20030201099
- Publication date Oct 30, 2003
- Varco I/P, Inc.
- Timothy S. Steffenhagen
- E21 - EARTH DRILLING MINING
Information Patent Application
Mast for handling a coiled tubing injector
- Publication number 20030079883
- Publication date May 1, 2003
- David W. McCulloch
- B66 - HOISTING LIFTING HAULING

David W. McCulloch

Person

Patents Grantslast 30 patents

Coiled tubing injector with load sensing tubing guide

Coiled tubing injector with limited slip chains

Handler for blowout preventer assembly

Coiled tubing injector handler

Coiled tubing injector with limited slip chains

Charging unit, system and method for activating a wellsite component

Coiled tubing injector with strain relief

Coiled tubing injector with limited slip chains

Elevating operator cabin for coiled tubing injector

Mast for handling a coiled tubing injector

Patents Applicationslast 30 patents

Coiled Tubing Injector With Limited Slip Chains

COILED TUBING INJECTOR WITH LOAD SENSING TUBING GUIDE

Coiled Tubing Injector With Limited Slip Chains

COILED TUBING INJECTOR WITH STRAIN RELIEF

COILED TUBING INJECTOR WITH LIMITED SLIP CHAINS

Elevating operator cabin for coiled tubing injector

Coiled tubing injector with flow limiter

Mast for handling a coiled tubing injector