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Inventor

HANNEGAN DON M

US36 patents
⚠️ This page may combine multiple inventors who share the name “HANNEGAN DON M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WEATHERFORD LAMB

16 patents
US7926593B2Apr 19, 2011

Rotating control device docking station

WEATHERFORD LAMB119 citations99
US8347982B2Jan 8, 2013

System and method for managing heave pressure from a floating rig

WEATHERFORD LAMB83 citations98
US7997345B2Aug 16, 2011

Universal marine diverter converter

WEATHERFORD LAMB62 citations98
US7836946B2Nov 23, 2010

Rotating control head radial seal protection and leak detection systems

WEATHERFORD LAMB66 citations98
US7258171B2Aug 21, 2007

Internal riser rotating control head

WEATHERFORD LAMB116 citations98
US7159669B2Jan 9, 2007

Internal riser rotating control head

WEATHERFORD LAMB169 citations98
US6913092B2Jul 5, 2005

Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling

WEATHERFORD LAMB131 citations98
US6470975B1Oct 29, 2002

Internal riser rotating control head

WEATHERFORD LAMB211 citations98
US7040394B2May 9, 2006

Active/passive seal rotating control head

WEATHERFORD LAMB86 citations97
US8347983B2Jan 8, 2013

Drilling with a high pressure rotating control device

WEATHERFORD LAMB35 citations95
US7448454B2Nov 11, 2008

Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling

WEATHERFORD LAMB50 citations95
US8353337B2Jan 15, 2013

Method for cooling a rotating control head

WEATHERFORD LAMB16 citations92
US9249646B2Feb 2, 2016

Managed pressure cementing

WEATHERFORD LAMB33 citations90
US8863858B2Oct 21, 2014

System and method for managing heave pressure from a floating rig

WEATHERFORD LAMB10 citations84
US8714240B2May 6, 2014

Method for cooling a rotating control device

WEATHERFORD LAMB6 citations84
US8636087B2Jan 28, 2014

Rotating control system and method for providing a differential pressure

WEATHERFORD LAMB10 citations82

WEATHERFORD TECH HOLDINGS LLC

11 patents

HANNEGAN DON M

2 patents

WEATHERFORD TECHNOLOGY HOLDINGS LLC

2 patents

WEATHERFORD HOLDING U S INC

1 patent

WILLIAMS JOHN R

1 patent

TODD RICHARD J

1 patent

SOKOL JONATHAN P

1 patent

BAILEY THOMAS F

1 patent