David Mason — 14 Patents at Varco I/P

David Mason has been granted 14 US patents while listed as an inventor at Varco I/P. The first was granted in 1994 and the most recent in January 2013. David Mason ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list David Mason in Eindhoven, CA, NL.

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
8356674	Tubular running tool and methods of use	Richard Lee Murray, Jr., Pieter Dekker, Keith Mitchell Wien, Neils De Keijzer, Antonius Dimphena Maria Krijnen +3 more	2013-01-22	$173,714,000
7753138	Pipe running tool having internal gripper	Daniel Juhasz, George I. Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman M. Kamphorst +3 more	2010-07-13
7699121	Pipe running tool having a primary load path	Daniel Juhasz, George I. Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman M. Kamphorst +3 more	2010-04-20
7591304	Pipe running tool having wireless telemetry	Daniel Juhasz, George I. Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman M. Kamphorst +2 more	2009-09-22
7510006	Pipe running tool having a cement path	Daniel Juhasz, George I. Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman M. Kamphorst +3 more	2009-03-31
7287544	Triple valve blow out preventer	Padmasiri Daya Seneviratne, Lawrence E. Wells	2007-10-30
7121295	Internal blow out preventer ball and seat	Padmasiri Daya Seneviratne, Lawrence E. Wells	2006-10-17
6935204	Automated manual transmission and shift method	Stuart J. Walker, David L. Dickrell	2005-08-30	$23,432,000
6915857	Non-seize material attachment for a drill slip system	Johannes Wilhelmus Henricus van Rijzingen, Ronaldus Roling	2005-07-12
6896048	Rotary support table	Anton Krijnen, Rene Mulder	2005-05-24
6845814	Pipe-gripping structure having load rings	Albert Patrick Jozef Maria de Pont, Hans van Rijzingen, Anton Krijnen, Cornelis Wilhelmus Jacobus de Laat	2005-01-25
6776070	Iron roughneck	George I. Boyadjieff, Johannes Kamp, Ronaldus Roling	2004-08-17
6758280	Non-seize material attachment for a drill slip system	J. W. H. Van Rijzingen, Rosmalen R. Roling	2004-07-06
5340182	Safety elevator	Cornelis L. Busink, Johannes Wilhelmus Henricus van Rijzingen	1994-08-23	$2,199,000

David Mason — 14 Patents

Issued Patents All Time

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