DH

Don Darrell Hickman

📍 Williston, ND: #4 of 64 inventorsTop 7%
🗺 North Dakota: #220 of 2,395 inventorsTop 10%
Overall (All Time): #639,746 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
9958094 Method and system for tightening threaded elements and certifying the connections and the devices for connecting threaded elements 2018-05-01
9766364 Method and apparatus for controlling oil well drill site systems 2017-09-19
9388849 Tong bearing 2016-07-12
9151323 Tong bearing 2015-10-06
8286727 Weighing and display station 2012-10-16
8281691 Tong assembly 2012-10-09
D661715 Tong bearing 2012-06-12
7992274 Method of making an open-head power tong assembly 2011-08-09