Chunqiao Ren

Person

Shanghai, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Bi-directionally raisable drilling rig mast
- Patent number 9,488,013
- Issue date Nov 8, 2016
- National-Oilwell Varco, L.P.
- Robert Benjamin Donnally
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drilling rig masts and methods of assembly and erection
- Patent number 9,441,423
- Issue date Sep 13, 2016
- National-Oilwell Varco, L.P.
- Robert Benjamin Donnally
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Bi-directionally raisable drilling rig mast
- Patent number 9,163,462
- Issue date Oct 20, 2015
- National-Oilwell Varco, L.P.
- Robert Benjamin Donnally
- E21 - EARTH DRILLING MINING
Information Patent Grant
Bi-directionally raisable drilling rig mast
- Patent number 8,904,716
- Issue date Dec 9, 2014
- National-Oilwell Varco, L.P.
- Robert Benjamin Donnally
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drilling rig mast lift systems and methods
- Patent number 8,875,911
- Issue date Nov 4, 2014
- National-Oilwell Varco, L.P.
- Robert B. Donnally
- E21 - EARTH DRILLING MINING
Information Patent Grant
Substructure of a mobile drilling rig with a movable center floor s...
- Patent number 8,863,449
- Issue date Oct 21, 2014
- National-Oilwell Varco, L.P.
- Robert Benjamin Donnally
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drilling rig masts and methods of assembly and erecting masts
- Patent number 8,549,815
- Issue date Oct 8, 2013
- National Oilwell Varco LP
- Robert Benjamin Donnally
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drilling rigs and erection methods
- Patent number 8,468,753
- Issue date Jun 25, 2013
- National Oilwell Varco LP
- Robert Benjamin Donnally
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drilling rig structure installation and methods
- Patent number 8,250,816
- Issue date Aug 28, 2012
- National Oilwell Varco LP
- Robert Benjamin Donnally
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drilling rig drawworks installation
- Patent number 8,047,303
- Issue date Nov 1, 2011
- National Oilwell Varco LP
- Robert Benjamin Donnally
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
BI-DIRECTIONALLY RAISABLE DRILLING RIG MAST
- Publication number 20150052828
- Publication date Feb 26, 2015
- National-Oilwell Varco, L.P.
- Robert Benjamin Donnally
- E21 - EARTH DRILLING MINING
Information Patent Application
BI-DIRECTIONALLY RAISABLE DRILLING RIG MAST
- Publication number 20150047908
- Publication date Feb 19, 2015
- National-Oilwell Varco, L.P.
- Robert Benjamin Donnally
- E21 - EARTH DRILLING MINING
Information Patent Application
BI-DIRECTIONALLY RAISABLE DRILLING RIG MAST
- Publication number 20130291452
- Publication date Nov 7, 2013
- Robert Benjamin Donnally
- E21 - EARTH DRILLING MINING
Information Patent Application
SUBSTRUCTURE OF A MOBILE DRILLING RIG WITH A MOVABLE CENTER FLOOR S...
- Publication number 20130276386
- Publication date Oct 24, 2013
- National-Oilwell Varco, L.P.
- Robert Benjamin Donnally
- E21 - EARTH DRILLING MINING
Information Patent Application
DRILLING RIG MAST LIFT SYSTEMS AND METHODS
- Publication number 20120047820
- Publication date Mar 1, 2012
- Robert B. Donnally
- E21 - EARTH DRILLING MINING
Information Patent Application
Grating fastening methods and systems
- Publication number 20090293417
- Publication date Dec 3, 2009
- Chunqiao Ren
- E04 - BUILDING
Information Patent Application
Drilling rigs and erection methods
- Publication number 20090218139
- Publication date Sep 3, 2009
- Robert Benjamin Donnally
- E21 - EARTH DRILLING MINING
Information Patent Application
Drilling rig masts and methods of assembly and erecting masts
- Publication number 20090218144
- Publication date Sep 3, 2009
- Robert Benjamin Donnally
- E21 - EARTH DRILLING MINING
Information Patent Application
Drilling rig structure installation and methods
- Publication number 20090218138
- Publication date Sep 3, 2009
- Robert Benjamin Donnally
- E21 - EARTH DRILLING MINING
Information Patent Application
Drilling rig drawworks installation
- Publication number 20090218137
- Publication date Sep 3, 2009
- Robert Benjamin Donnally
- E21 - EARTH DRILLING MINING

Chunqiao Ren

Person

Patents Grantslast 30 patents

Bi-directionally raisable drilling rig mast

Drilling rig masts and methods of assembly and erection

Bi-directionally raisable drilling rig mast

Bi-directionally raisable drilling rig mast

Drilling rig mast lift systems and methods

Substructure of a mobile drilling rig with a movable center floor s...

Drilling rig masts and methods of assembly and erecting masts

Drilling rigs and erection methods

Drilling rig structure installation and methods

Drilling rig drawworks installation

Patents Applicationslast 30 patents

BI-DIRECTIONALLY RAISABLE DRILLING RIG MAST

BI-DIRECTIONALLY RAISABLE DRILLING RIG MAST

BI-DIRECTIONALLY RAISABLE DRILLING RIG MAST

SUBSTRUCTURE OF A MOBILE DRILLING RIG WITH A MOVABLE CENTER FLOOR S...

DRILLING RIG MAST LIFT SYSTEMS AND METHODS

Grating fastening methods and systems

Drilling rigs and erection methods

Drilling rig masts and methods of assembly and erecting masts

Drilling rig structure installation and methods

Drilling rig drawworks installation