Calvin R. Blankenship

Person

Lindsay, OK, US

People

Patents Grantslast 30 patents

Information Patent Grant
Power swivel and lubrication system
- Patent number 11,421,479
- Issue date Aug 23, 2022
- National-Oilwell Varco, L.P.
- Christopher Brian Walker
- E21 - EARTH DRILLING MINING
Information Patent Grant
Guidance systems and apparatus for power swivel
- Patent number 11,136,826
- Issue date Oct 5, 2021
- National-Oilwell Varco, L.P.
- Christopher Brian Walker
- E21 - EARTH DRILLING MINING
Information Patent Grant
Power swivel and gooseneck
- Patent number 10,947,796
- Issue date Mar 16, 2021
- National-Oilwell Varco, L.P.
- Christopher Brian Walker
- E21 - EARTH DRILLING MINING
Information Patent Grant
Washpipe assemblies for a power swivel
- Patent number 10,563,770
- Issue date Feb 18, 2020
- National-Oilwell Varco, L.P.
- Christopher Brian Walker
- E21 - EARTH DRILLING MINING
Information Patent Grant
Automated system for positioning and supporting the work platform o...
- Patent number 8,006,751
- Issue date Aug 30, 2011
- National-Oilwell, L.P.
- Jeff A. Lambert
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Automated system for positioning and supporting the work platform o...
- Patent number 7,546,869
- Issue date Jun 16, 2009
- National-Oilwell, L.P.
- Jeff A. Lambert
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Automated system for positioning and supporting the work platform o...
- Patent number 7,293,607
- Issue date Nov 13, 2007
- National-Oilwell, L.P.
- Jeff A. Lambert
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
GUIDANCE SYSTEMS AND APPARATUS FOR POWER SWIVEL
- Publication number 20200308911
- Publication date Oct 1, 2020
- National-Oilwell Varco, L.P.
- Christopher Brian Walker
- E21 - EARTH DRILLING MINING
Information Patent Application
POWER SWIVEL AND GOOSENECK
- Publication number 20200248513
- Publication date Aug 6, 2020
- National-Oilwell Varco, L.P.
- Christopher Brian Walker
- E21 - EARTH DRILLING MINING
Information Patent Application
POWER SWIVEL AND LUBRICATION SYSTEM
- Publication number 20180313154
- Publication date Nov 1, 2018
- National-Oilwell Varco, L.P.
- Christopher Brian Walker
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
WASHPIPE ASSEMBLIES FOR A POWER SWIVEL
- Publication number 20170321807
- Publication date Nov 9, 2017
- National-Oilwell Varco, L.P.
- Christopher Brian Walker
- E21 - EARTH DRILLING MINING
Information Patent Application
Automated System for Positioning and Supporting the Work Platform o...
- Publication number 20080063498
- Publication date Mar 13, 2008
- Jeff A. Lambert
- B66 - HOISTING LIFTING HAULING
Information Patent Application
Automated system for positioning and supporting the work platform o...
- Publication number 20080038093
- Publication date Feb 14, 2008
- Jeff A. Lambert
- B66 - HOISTING LIFTING HAULING
Information Patent Application
Automated system for positioning and supporting the work platform o...
- Publication number 20060011351
- Publication date Jan 19, 2006
- Jeff A. Lambert
- B66 - HOISTING LIFTING HAULING

Calvin R. Blankenship

Person

Patents Grantslast 30 patents

Power swivel and lubrication system

Guidance systems and apparatus for power swivel

Power swivel and gooseneck

Washpipe assemblies for a power swivel

Automated system for positioning and supporting the work platform o...

Automated system for positioning and supporting the work platform o...

Automated system for positioning and supporting the work platform o...

Patents Applicationslast 30 patents

GUIDANCE SYSTEMS AND APPARATUS FOR POWER SWIVEL

POWER SWIVEL AND GOOSENECK

POWER SWIVEL AND LUBRICATION SYSTEM

WASHPIPE ASSEMBLIES FOR A POWER SWIVEL

Automated System for Positioning and Supporting the Work Platform o...

Automated system for positioning and supporting the work platform o...

Automated system for positioning and supporting the work platform o...