Weatherford/Lamb — 1,204 Patents, Ranked #703

Patents per Year

Showing 1–50 of 852 inventors

Rank	Name	Patents
1	David M. Haugen	74
2	Bernd-Georg Pietras	64
3	Neil Andrew Abercrombie Simpson	57
#4	Simon J. Harrall	53
#5	Thomas F. Bailey	47
#6	Richard L. Giroux	46
#7	David J. Brunnert	42
#7	Paul David Metcalfe	42
#9	Robert Coon	34
#10	Lev Ring	29
#11	Alan D. Kersey	28
#12	Karsten Heidecke	27
#13	Frederick T. Tilton	26
#14	Trevor MacDougall	25
#15	Patrick Maguire	24
#15	Thurman B. Carter	24
#17	Daniel L. Gysling	23
#17	Mike A. Luke	23
#19	Corey Hoffman	22
#19	David Hosie	22
#19	David Shahin	22
#22	Don M. Hannegan	21
#22	Domino Taverner	21
#22	Edward M. Dowd	21
#22	John J. Grunbeck	21
#26	Albert C. Odell, II	20
#26	Martin A. Putnam	20
#28	Gregory G. Galloway	19
#28	James W. Chambers	19
#28	James Dunphy	19
#28	Kevin L. Gray	19
#28	Paul E. Sanders	19
#28	Patrick J. Zimmerman	19
#34	Roddie R. Smith	18
#35	Alexander Craig Mackay	17
#35	Espen S. Johansen	17
#35	Neil A. A. Simpson	17
#38	David Hirth	16
#38	Paul James Wilson	16
#38	Richard T. Jones	16
#38	Rocky A. Turley	16
#38	Tarald Gudmestad	16
#38	Wayne Rudd	16
#44	Guy L. McClung, III	15
#44	Tuong Thanh Le	15
#46	Craig Fishbeck	14
#46	Gary Thompson	14
#46	Gerald Pedersen	14
#46	Jeffrey J. Lembcke	14
#46	John D. Roberts	14

Patent	Est. Value	Year
Retrievable bridge plug	$276M	2008
Expansion activated anti-rotation device	$267M	2009
Corrected DTS measurements based on Raman-Stokes signals	$266M	2009
Stand compensator	$262M	2009
Combined bragg grating wavelength interrogator and brillouin backscattering measuring instrument	$258M	2009