DW

Don Williamson

Schlumberger Technology: 9 patents #692 of 7,293Top 10%
TC The Colonel'S: 2 patents #2 of 3Top 70%
TI Trane International: 1 patents #407 of 658Top 65%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #350,982 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9371479 Controlled release biocides in oilfield applications Andrey Mirakyan, Richard D. Hutchins, Eric Clum 2016-06-21
9181984 Alignment feature for hub and driveshaft assembly Eli Beard, Ken Monroe, Walter B. Freeman 2015-11-10
9097077 Downhole chemical delivery system and method 2015-08-04
8833452 Chemical diversion technique 2014-09-16
8646530 Chemical diversion technique 2014-02-11
8627889 Drilling and fracturing fluid Philip F. Sullivan, Marie Noelle Dessinges 2014-01-14
7971644 Fluid loss additive and breaking agent Hemant K. Ladva, Syed A. Ali, Mohan K.R. Panga, Richard D. Hutchins 2011-07-05
7806182 Stimulation method George Waters, Paul R. Howard, John W. Still 2010-10-05
7779915 Methods of limiting leak off and damage in hydraulic fractures Richard D. Hutchins, Hemant K. Ladva, Sylvie Daniel 2010-08-24
7703521 Polymeric microspheres as degradable fluid loss additives in oilfield applications Philip F. Sullivan, Gary John Tustin, Hemant K. Ladva 2010-04-27
6561468 Mounting system for displaying a bird 2003-05-13
6076879 Bed liner with graphics display Dennis Bills, John Carpenter 2000-06-20
5887931 Bed liner with graphics display Dennis Bills, John Carpenter 1999-03-30
D349880 Raft tiller assembly Jerome A. Tuchschmidt 1994-08-23